Subjects: Engineering and technical science >> Metrology Subjects: Engineering and technical science >> Technology of Instrument and Meter submitted time 2024-03-28
Abstract： The research of smart meter communication technology is an important research direction in the field of electric power, which involves in-depth exploration and technological innovation of smart meter communication system. With the development of smart grid, smart meter, as a key information interaction node between the power grid and users, the research and application of communication technology is of great significance for improving the intelligence level of the power grid and optimizing the allocation of power resources. The study includes the evaluation and improvement of existing communication technologies to meet the specific needs of smart meter communication. For example, narrowband and broadband power line carrier communication is a technical direction that can lead the research and application of the meter industry, and its progress in maintenance-free technology, automatic debugging terminal, automatic networking instrument and other aspects are all hot spots in current research. At the same time, the research and optimization of long-range wireless communication systems and the research and development of intelligent terminals are also important aspects of the research of smart meter communication technology. In addition, the research of smart meter communication technology also needs to pay attention to communication protocols, communication security, data processing and other issues. By formulating a unified communication protocol, the interconnection between different devices can be realized, and the compatibility and scalability of the system can be improved. At the same time, strengthening the research on communication security can ensure the safe transmission of power data and prevent data leakage and illegal access. In terms of data processing, through the use of advanced data analysis technology, power data can be deeply mined, providing strong support for decision-making and operation in the power industry. In general, the research of smart meter communication technology is a comprehensive research topic involving many fields, and it is necessary to continuously track the development of new technologies, and carry out technological innovation and application promotion in combination with actual needs to promote the intelligent development of the power industry.
Peer Review Status:
Awaiting Review
Subjects: Engineering and technical science >> Metrology Subjects: Engineering and technical science >> Technology of Instrument and Meter submitted time 2024-03-28
Abstract： Energy metering and energy efficiency management play an important role in business operations. Energy metering refers to the detection, measurement and calculation of the quantity, quality, performance parameters and related characteristic parameters of each link in the energy process. It is not only the basis for enterprises to strengthen energy management and improve the level of energy management, but also an important guarantee for enterprises to implement national energy-saving regulations, policies and standards, rationally use energy, optimize energy structure, improve energy efficiency, and improve economic benefits and market competitiveness. Energy metering is usually divided into three levels of measurement, that is, incoming and outgoing energy-using units, secondary energy-using units (such as workshops, process sections, etc.) and main energy-using equipment. This hierarchical management helps enterprises to grasp energy usage more accurately, so as to more effectively manage energy and reduce energy consumption. Energy efficiency management is based on energy metering data, through scientific management methods and technical measures, to achieve effective use and conservation of energy. It involves all aspects of energy procurement, storage, conversion, and use, with the goal of improving energy efficiency, reducing energy consumption, and reducing environmental impact. However, in practice, some enterprises may not pay enough attention to energy metering due to their weak awareness of energy metering, resulting in waste of energy use. In addition, some enterprises may lack professional energy metering personnel, and the processing and analysis capabilities of energy metering data are insufficient, which also affects the effectiveness of energy efficiency management. Therefore, enterprises need to improve the awareness of energy metering, strengthen energy metering management, train professional energy metering personnel, and make full use of energy metering data for energy efficiency management. At the same time, the government and society should also strengthen the publicity and promotion of energy metering and energy efficiency management, and improve the awareness and ability of the whole society to save energy. As for the specific application and practice of energy metering and energy efficiency management in specific enterprises or industries, as well as how to measure and manage these energy sources in the process of use, it will be necessary to conduct specific analysis according to the production process, equipment status, energy use characteristics and other factors of specific enterprises. In general, energy metering and energy efficiency management are important means for enterprises to achieve sustainable development and energy conservation and emission reduction goals.
Peer Review Status:Awaiting Review
Subjects: Engineering and technical science >> Metrology Subjects: Engineering and technical science >> Technology of Instrument and Meter submitted time 2024-03-28
Abstract： This paper deeply discusses the research status and development trend of high-end electric energy meters, and focuses on the differentiated design, technical standards and special test methods of imported high-end electric meters. At the same time, combined with the new needs of two-way interactive smart meters, the key technical design scheme is proposed, which provides a valuable reference for the meter industry.
Peer Review Status:Awaiting Review
Subjects: Engineering and technical science >> Metrology Subjects: Engineering and technical science >> Technology of Instrument and Meter submitted time 2024-03-28
Abstract： A comprehensive and systematic set of multi-functional watt-hour meter performance evaluation quality test methods was proposed. By comparing and studying the relevant standards and technical indicators of advanced meters at home and abroad, this method comprehensively considers the accuracy, stability, reliability and intelligence of the meter, which provides strong support for the quality improvement and technological innovation of the energy meter industry.
Peer Review Status:Awaiting Review
Subjects: Engineering and technical science >> Metrology Subjects: Engineering and technical science >> Technology of Instrument and Meter submitted time 2024-03-28
Abstract： The relevant standards of multifunctional energy meters are evaluated for practicability, especially for the comparative analysis of the International Electrotechnical Commission (IEC) standards and relevant domestic standards. Through an in-depth analysis of the standard, this paper attempts to reveal the advantages and disadvantages of the standard in practical application, and discusses how to further improve the standard to better guide the design, production and application of multi-function energy meters.
Peer Review Status:Awaiting Review
Subjects: Engineering and technical science >> Metrology Subjects: Engineering and technical science >> Technology of Instrument and Meter submitted time 2024-03-28
Abstract： The application research of energy meter technology is an in-depth and extensive field, covering the design, manufacturing, testing, calibration and application of energy meters in power systems. With the continuous progress of science and technology and the rapid development of the power industry, the application of electric energy meter technology is also constantly innovating and improving. First of all, from the perspective of the design and manufacture of electric energy meters, modern electric energy meters are no longer simple mechanical electric energy meters, but use microprocessor technology and communication technology to become smart electric energy meters. Smart energy meters have the advantages of high precision, multi-parameter measurement, harmonic power power metering, etc., and can accurately measure electric energy usage, including active power, reactive power, apparent power and other related parameters. At the same time, the smart energy meter also has the functions of remote meter reading, real-time monitoring, data transmission, etc., which greatly reduces the demand and cost of human resources, and improves the operation efficiency and management level of the power system. Secondly, advanced technical means are also used in the testing and calibration of electric energy meters. For example, high-speed, real-time measurement AC sampling technology makes the measurement of energy meters more accurate and faster. At the same time, the application of open, high-speed communication technology also makes the data transmission of electric energy meters more reliable and efficient. In terms of the application of energy meters, smart energy meters play an important role in the monitoring and management of power systems. It can collect and analyze the operation data of the system in real time, and adjust it according to the needs to ensure the safe operation of the system. In addition, smart energy meters can also provide data support and decision-making basis for the optimization and energy conservation of the power system, which helps to reduce unnecessary waste of electricity and achieve the purpose of energy conservation and emission reduction. However, there are still some challenges in the application of energy meter technology. For example, with the continuous development of the power system, the performance requirements for electric energy meters are also getting higher and higher, and the measurement accuracy and stability of electric energy meters need to be continuously improved. At the same time, with the access of new energy and distributed power sources, the power system has become more complex, and higher requirements have been put forward for the adaptability of electric energy meters. Therefore, in the future, the application research of electric energy meter technology needs to continue to explore new technical methods and means to meet the needs of the continuous development and change of the power system. For example, more advanced measurement algorithms and calibration methods can be studied to improve the measurement accuracy and stability of electric energy meters, more intelligent data processing and analysis technologies can be studied to achieve more accurate monitoring and management of the power system, and more efficient communication technologies can be studied to improve the data transmission efficiency and reliability of electric energy meters. In addition, it is also necessary to pay attention to the application of electric energy meters in the access of new energy and distributed power sources. How to better adapt to the access of new energy and distributed power sources and improve the operation efficiency and stability of the power system is one of the important directions of the application research of electric energy meter technology.To sum up, the application research of electric energy meter technology is a field that is constantly deepening and developing, which needs to be continuously explored and innovated. Through continuous research and application, it is believed that the electric energy meter will play a more important role in the future power system and make greater contributions to the development of the power industry and the progress of society.
Peer Review Status:Awaiting Review
Subjects: Engineering and technical science >> Metrology Subjects: Engineering and technical science >> Technology of Instrument and Meter submitted time 2024-02-26
Abstract： The export of high-end meters is the expectation of the development of the meter industry in the next few years. This paper will focus on the innovative achievements of China's high-end electric energy metering technology in recent years; Learn from the experience of international meter design and deepen the development of domestic high-end meter products; The proposal to set up a high-end meter export alliance is described in three topics, and the thoughts and suggestions on how to integrate high-end meters into the international high-end market are put forward for the reference of the development of China's metering industry.
Peer Review Status:Awaiting Review
Subjects: Engineering and technical science >> Metrology Subjects: Engineering and technical science >> Technology of Instrument and Meter submitted time 2024-02-26
Abstract： mainly introduces the construction of the electricity information collection system to be completed by the State Grid in 2010-2014, and pays special attention to the application and problems of the local narrowband carrier communication mode. The article also mentions the research on the engineering design and management methods of the local narrowband carrier automatic meter reading system, and emphasizes that this is a complex and popular project that requires a lot of investment. The preliminary work study draws on the experience of the performance evaluation system of low-voltage power line narrowband carrier communication system, and proposes a series of innovative construction strategies. At the same time, the paper also points out some mistakes in the formulation process of the enterprise standard of the State Grid electricity information acquisition system, such as the failure to focus on the technical bottleneck of the local narrowband carrier automatic meter reading system for residential users, and some problems and deficiencies in the standard. This text mainly focuses on the "construction of the State Grid electricity information acquisition system" and "the application and problems of local narrowband carrier communication mode", and also involves the preliminary work research, innovative construction strategies and standard formulation failures.
Peer Review Status:Awaiting Review
Subjects: Engineering and technical science >> Metrology Subjects: Engineering and technical science >> Technology of Instrument and Meter submitted time 2024-02-23
Abstract： It mainly describes the transformation of State Grid's investment in smart meters and distribution networks, and the impact of this transformation on the meter industry. The State Grid has shifted its investment focus from smart meters to a new generation of smart substation demonstration projects and smart distribution network construction. The new generation of intelligent substations is mainly characterized by integrated intelligent equipment and integrated business systems, including the integration of primary equipment, the integration of secondary equipment, and the integration of primary equipment and secondary equipment. The State Grid also put forward the urgency of developing the distribution network and plans to speed up the intelligent upgrading process of the distribution network. In addition, the article also mentions the latest development of electronic meter testing technology, especially the progress of the China Metrology Institute in high-voltage three-phase electric energy metering standards, including high-voltage standard power sources and high-voltage/low-voltage multi-function standard meters. These technological advances provide a more accurate and efficient tool for the testing of electronic meters. Overall, it reflects the continuous development and upgrading of grid technology, which presents new challenges and opportunities for the meter industry. Traditional meter companies need to adapt to these changes, learn and research modern power grid measurement technology, and develop new products that adapt to the rapid development of smart distribution networks.
Peer Review Status:Awaiting Review
Subjects: Engineering and technical science >> Metrology Subjects: Engineering and technical science >> Technology of Instrument and Meter submitted time 2024-02-23
Abstract： During the "13th Five-Year Plan" period, the State Grid smart meter market will usher in major changes, in which the demand for smart meters will drop significantly, but the demand for supporting equipment such as plug-in meter boxes will increase. In the face of this market change, traditional meter companies need to accelerate the diversified development of meter products to meet the new market demand. On the one hand, in addition to the traditional meter, terminal, plug-in meter box market, it is also necessary to pay attention to some promising meter market, such as statistical meter + electricity consumption monitoring + low-voltage power grid maximum load measurement and control system, four-in-one collection, low-voltage metering box and low-voltage cabinet series products. These markets will provide new growth points for meter companies. On the other hand, the demand for mainstream products in the non-centralized procurement market also needs to be taken seriously. The needs of this market include statistical meters, all-in-one card detection sockets, industrial input/output (I/O) modules and various monitoring systems, and integrated energy consumption data management systems for electricity, water, gas, heat and cold meters. These products will help improve the intelligence level of electricity meters and meet the diverse needs of users. In addition, the development of innovative smart meter products is also an important direction in the future. These innovative products will help improve the accuracy, stability and reliability of electricity meters, and improve the intelligence level of the power grid. In general, during the "13th Five-Year Plan" period, meter companies need to keep up with market changes, accelerate the development of product diversification, and improve the intelligent level of products to adapt to new market demand. At the same time, the government and enterprises also need to increase their support for meter technology innovation and promote the technological progress and industrial upgrading of the meter industry.
Peer Review Status:Awaiting Review
Subjects: Engineering and technical science >> Metrology Subjects: Engineering and technical science >> Technology of Instrument and Meter submitted time 2024-02-23
Abstract： A preliminary study on the trend of power grid measurement equipment, intelligent control system and smart meters in China. The article first reviews the origin and development of the smart grid, including its definition, philosophy, and how to build a smart grid. Then, the paper discusses the technical orientation of intelligent high-voltage equipment and the smart distribution network and its key technologies. On this basis, this paper deeply analyzes the structure and common technologies of intelligent control systems, and demonstrates the application of intelligent control systems in distribution power equipment, distribution network monitoring and high-end electricity meters through a number of cases. Finally, the paper also discusses the trend of smart meters in China, including the requirements of smart grid technology for smart meters and the development direction of electricity information collection system construction. The article points out that smart grid is an important direction for the development of power grids in the future, with the characteristics of strength, self-healing, compatibility, economic integration and optimization. The technical orientation of intelligent high-voltage equipment emphasizes the importance and key technologies of intelligent high-voltage equipment. As an important part of the smart grid, the typical structure of the intelligent control system includes the inspected system, the intelligent controller and the communication interface, and the common technologies include fuzzy control technology, neural network control technology and genetic algorithm. In terms of the application of intelligent control system, the paper shows its practical application in power distribution equipment, distribution network monitoring and high-end electricity meters through a number of cases. In addition, the article discusses the trend of smart meters in China. At present, the third generation of electric energy meters has been developed in China, but there is still a big gap between the technology and the requirements of smart grid construction. Smart meters need to have more functions to meet the needs of smart grid construction. At the same time, the construction of electricity information collection system will also develop to the Advanced Measurement System (AMI). To sum up, this paper makes a comprehensive preliminary exploration and analysis of power grid measurement equipment, intelligent control systems and the trend of smart meters in China. The article aims to provide readers with an in-depth understanding of smart grid and smart meter technology, and provide reference and enlightenment for research and application in related fields.
Peer Review Status:Awaiting Review
Subjects: Engineering and technical science >> Metrology Subjects: Engineering and technical science >> Technology of Instrument and Meter submitted time 2024-02-23
Abstract： In August 2015, the craze of "four-table collection" heated up rapidly due to the notice of the State Grid Marketing Department. This notice has promoted the unified collection of electricity, water, gas and heat meter data, which has aroused widespread attention inside and outside the industry. With the rise of this craze, there are different views and controversies on whether to promote the "four-in-one collection" or to develop the collection of water, gas and heat industries. The development process of this boom began in early 2014, when the marketing department of the State Grid first proposed a technical scheme for the integration of four tables into one. Subsequently, in August 2015, Yangzhou and Jining successively carried out the pilot work of four-in-one collection, and achieved remarkable results. As a result, the State Grid also held a technical exchange meeting in Jining, Shandong Province, to promote this pilot experience. With the heating up of the "four table collection" craze, the reaction inside and outside the industry has become more and more intense. On the one hand, some organizations such as "Global Metering" have organized relevant thematic meetings to discuss the technology and application of four-meter centralized reading; On the other hand, different industries have also begun to organize the formulation of technical standards for the collection of four tables to promote their application in their respective fields. However, there are differences of opinion on the formulation of unified standards, and some people believe that it is difficult to formulate unified national standards and industry standards because the four tables are in different industries. At the same time, China's modern power grid measurement technology has also begun to organize the top-level design research of the four-meter centralized copy. These studies not only discuss the technical framework and architecture design of the four-table collection, but also conduct in-depth research on its relationship with the energy Internet. In addition, the collection of water, gas and heat sub-industries is also quietly upgrading. For example, the Beijing Water Supply Group has proposed a new concept of independent/zoned metering of water supply, which can accurately monitor and manage the water supply by installing independent on/off valves and flow meters. At the same time, the gas industry is also promoting intelligent engineering to improve the safety and efficiency of gas production and operation through intelligent monitoring and control systems. Despite the controversy and disagreement, the initial results of the "Four Tables Collection Copy" have already appeared. According to the 2015 social responsibility report of the State Grid Corporation, the company has made significant progress in accelerating the collection of electricity, water, gas and heat data in 2015. This progress not only improves the efficiency and accuracy of data collection, but also helps to realize intelligent and refined energy management. Overall, the rise of the "four-table collection" boom marks an important change in the field of energy management. Although there are different views and controversies in this process, through continuous technological innovation and standard formulation, the "four-table centralized copying" is expected to become one of the mainstream trends in the field of energy management in the future. At the same time, with the continuous development of the energy Internet, the "four-meter centralized copying" will also be deeply integrated with it to promote the intelligent and sustainable development of energy management.
Peer Review Status:Awaiting Review
Subjects: Engineering and technical science >> Metrology Subjects: Engineering and technical science >> Technology of Instrument and Meter submitted time 2024-02-19
Abstract： On the basis of measurement technology, the intelligent terminal has been extended to the research of intelligent control and compensation technology. The development and application of this technology is of great significance for improving the efficiency and stability of the power system. First of all, measurement technology is a basic component of the smart grid. Through the high-speed two-way information communication system, the smart grid can monitor the parameters of the power grid in real time, and convert the detected grid parameters into data information for the use of various systems of the smart grid. This information can reflect the complete status of the power grid in a timely manner, help to comprehensively evaluate the safety and reliability of the power grid, and improve the efficiency of energy utilization. Intelligent control and compensation technology is an important means to further improve the efficiency and stability of the power grid. Intelligent control technology requires the introduction of a pre-set expert system that automatically diagnoses, analyzes and predicts the state of the grid in the smart grid. Appropriate measures are taken to prevent interruptions in the supply supply and disturbances in power quality, up to the limits set by the expert system. These measures may include adjusting the active and reactive power of the grid to achieve intelligent control and compensation of electrical energy. Therefore, it is an important trend in the development of power system technology to expand the research of intelligent terminal from measurement technology to intelligent control and compensation technology. This development can not only improve the efficiency and stability of the power system, but also help to realize the intelligence and automation of the power system, so as to meet the high requirements of modern society for power supply.
Peer Review Status:Awaiting Review
Subjects: Engineering and technical science >> Technology of Instrument and Meter Subjects: Engineering and technical science >> Metrology submitted time 2024-02-14
Abstract： mainly describes the functional controversy of the State Grid smart meter and its importance in the construction of ubiquitous power Internet of Things. At present, the State Grid smart meter only has the primary interactive function, and in order to realize the "ubiquitous connection" and "holographic perception" of the ubiquitous power Internet of Things, the smart meter needs to have advanced interactive functions. Therefore, it is time to accelerate the development of the "smart" function of smart meters, which is a necessary choice to promote the construction of ubiquitous power Internet of Things. At the same time, the paper also points out that smart meters, as the only legal measuring instruments used as two-way power flow trade settlement, have the advantages of large volume, wide distribution, and close distance from users and other devices, and are the best nodes for ubiquitous connection and holographic perception. Therefore, accelerating the development of the "smart" function of smart meters is the only option to promote the implementation of the "ubiquitous connection" and "holographic perception" requirements of bidirectional power flow trade settlement metering of the ubiquitous power Internet of Things.
Peer Review Status:Awaiting Review
Subjects: Engineering and technical science >> Metrology Subjects: Engineering and technical science >> Technology of Instrument and Meter submitted time 2024-02-13
Abstract： The general technical specifications and modular design requirements of three-phase smart IoT meters are introduced. The three-phase smart IoT meter consists of a metering module, a management module, and an expansion module, which has a variety of functions and adapts to the needs of the Internet of Things. The specification combines the requirements of the IEC electricity meter standard, the 2013 version of the State Grid smart meter technology, the functional standard and the IR46 standard, and introduces a modular design. The modular design allows the meter to be expanded as needed, improving flexibility and maintainability. Among them, the metering module has the ability to make legal measurement and can work independently, while the management module is responsible for the user interface and communication functions. This paper provides a technical basis and design guidance for the popularization, application and long-term development of three-phase smart IoT meters
Peer Review Status:Awaiting Review
Subjects: Engineering and technical science >> Metrology Subjects: Engineering and technical science >> Technology of Instrument and Meter submitted time 2024-02-13
Abstract： The technical evolution of domestic multi-functional electric energy meters was discussed in depth. With the rapid development of the domestic power market and the continuous innovation of technology, domestic multi-functional electric energy meters have experienced the transformation from simple billing to complex multi-functional, from a single application to a wide range of fields. This transformation has not only driven the rapid development of energy meter technology, but also met the increasing demand for electricity and management requirements. This paper expounds the concept of multi-function meter, the working principle and algorithm of electric energy meter using digital multiplier, the origin and evolution of multi-functional electric energy meter standard, and the origin and evolution of domestic multifunctional electric energy meter products. Although the domestic self-produced multi-function watch has achieved good results in performance, it still needs to be improved in terms of reliability and key process technology. In addition, the development of communication technology also provides new opportunities for the advancement of energy meter technology. The application of new technologies provides a more convenient and efficient way for the data transmission and remote management of electric energy meters. Domestic multi-functional electric energy meters have made remarkable achievements in technology evolution and application expansion, but they still face some challenges and opportunities. In the future, with the continuous development of the power market and the advancement of smart grid construction, domestic multi-functional electric energy meters need to continue to strengthen technological innovation and product research and development, improve product reliability and competitiveness, and meet higher application needs and market requirements.
Peer Review Status:Awaiting Review
Subjects: Engineering and technical science >> Technology of Instrument and Meter Subjects: Engineering and technical science >> Metrology submitted time 2024-02-12
Abstract： Since 2021, the meter industry has faced multiple challenges such as slow market growth, reduced technology demand, brain drain and insufficient revenue, and the current recession faced by the meter industry, especially in the lack of technical demand for new products, the loss of development talents, and the inability of operating income to meet the development needs of enterprises. In view of these problems, this paper puts forward the importance of promoting the development and application of new technologies for domestic smart meter metering, especially the need to adapt to the demand for electric energy metering and monitoring caused by the connection of new energy grids and complex power grid loads. To this end, this paper proposes a new project for the development and application of three-phase broadband smart meters that have undergone the actual power grid waveform test and assessment, in order to promote the development of new technologies and markets in the meter industry. At the same time, the article also mentions that the 0.005 three-phase broadband electric energy standard meter is included in the national key research and development plan, which provides a measurement traceability guarantee for the development and application of three-phase broadband electric energy meter. In addition, the paper also analyzes the impact of renewable energy integration on the operation status of traditional power grids, including broadband oscillation, overvoltage and broadband harmonic current, and points out the lack of online metering and monitoring smart meters for these anomalies. Therefore, the development of three-phase broadband watt-hour meters is of great significance to solve these problems.
Peer Review Status:Awaiting Review
Subjects: Engineering and technical science >> Metrology Subjects: Engineering and technical science >> Technology of Instrument and Meter submitted time 2024-02-03
Abstract： This paper mainly introduces the IEEE1901.1 international standard for broadband (intermediate frequency) power line carrier communication and its application in the power consumption information acquisition system of the State Grid. The standard was issued by the China Electric Power Research Institute, which fills the gap in the international standard of medium frequency power line carrier communication in the field of smart grid, and enhances China's international influence and voice in the field of Internet of Things. At the same time, the State Grid attaches great importance to the development of broadband (medium frequency) power line carrier communication technology, mainly because the communication rate of narrowband (low-speed) carrier communication mode is slow, and the success rate of automatic acquisition is low, which has become a technical bottleneck for local communication. This paper also introduces the investment in the construction of the State Grid electricity information collection system, as well as the power consumption information collection requirements that need to be met by the broadband (intermediate frequency) carrier communication rate.
Peer Review Status:Awaiting Review
Subjects: Engineering and technical science >> Metrology Subjects: Engineering and technical science >> Technology of Instrument and Meter submitted time 2024-02-02
Abstract： This article mainly discusses the application and potential of smart meters in the field of power distribution, as well as two different technical solutions for active repair of distribution networks. The article describes the application and potential of smart meters in the field of power distribution. Since 2017, although the demand for smart meters in the basic market is not strong, it has broad application prospects in the large-scale construction and transformation of intelligent distribution networks, including the monitoring and optimization of the operation level of comprehensive indicators of distribution networks, the emergency repair of distribution networks from passive to active, and the monitoring and control of high power quality of distribution networks. This paper discusses two different technical solutions for active repair of distribution networks. The first is the Suzhou Power Supply Company's distribution network active repair system based on new smart meters. The system learns from the "Last Gasp" function concept of Jemena in Australia to realize the function of the smart meter to actively upload power outage information after a power outage. At the level of the emergency repair system, the distribution network unified distribution data model and greedy algorithm are used to quickly respond and analyze the scope of power outages. In the pilot project of Beilian Village, Wujiang District, Suzhou City, the system has greatly improved the quality and efficiency of emergency repair, and it only takes 1 minute from the user's power outage to receiving the power outage fault information, and the emergency repair personnel can restore the user's electricity within 10 minutes. The second is the terminal power grid intelligent perception system developed by Jiangsu Electric Power. By monitoring the changes in the voltage data at the back end of the user's meter, the system can sense the power outage status in advance and accurately reach the household, so as to realize the real-time monitoring of the terminal power grid. When a user loses power, the abnormal data will be transmitted to the branch box and distribution transformer step by step through the topological relationship, and the distribution network staff can know the user who has lost power within 30 seconds, without the need to check from house to house. To sum up, smart meters have a wide range of application prospects and great potential in the field of power distribution. By introducing and exploring new technical solutions, such as the distribution network active repair system based on new smart meters and the terminal power grid intelligent perception system, the operation efficiency and reliability of the distribution network can be greatly improved, and users can be provided with better power supply services.
Peer Review Status:Awaiting Review
Subjects: Engineering and technical science >> Metrology Subjects: Engineering and technical science >> Technology of Instrument and Meter submitted time 2024-01-31
Abstract： This article mainly introduces the construction process and related technical development of the State Grid electricity information collection system. Firstly, this paper summarizes the construction goals and development process of the State Grid electricity information collection system, and focuses on the construction and application effect of the power consumption information collection system of Jiangsu Power Grid. Then, the key technologies and engineering applications of the power information acquisition system are summarized and described, including the system architecture, the number of terminals and channel types, the master station equipment, data management and application. This paper mentions the key technologies of the power consumption information acquisition system, including low-cost communication mode, safety requirements for large user load control, wireless public network online technology, unified data model and parallel data processing technology. In general, this paper provides a useful reference for the technical exploration of the State Grid electricity information collection system.
Peer Review Status:Awaiting Review
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