ã€Industry Focus of China Instrument Network】 From October 14 to 15, 2014, the Chinese Academy of Electric Power organized a seminar on low-voltage power line broadband carrier communication technology standards for power consumption information collection systems in Beijing, with more than 30 technologies from company systems and manufacturers. Experts participated in this meeting.
The meeting listened to the report on technical specifications, inspection specifications, and communication protocols of low-voltage power line broadband carrier communication units from the Institute of Metrology, China Academy of Electric Power. Experts' technical requirements for broadband power line carrier communication equipment, working band allocation, coding methods, and message structure The contents were further discussed, and it was proposed to further improve the test methods such as interconnection and system-level testing, and clarify the work plan for the next phase.
It is reported that the power user information collection system is a system for collecting, processing, and real-time monitoring of electricity users' electricity information, realizing automatic collection of electricity information, abnormal measurement monitoring, power quality monitoring, electricity analysis and management, and related Information publishing, distributed energy monitoring, and information exchange for smart appliances.
The broadband network data system based on power line transmission combines the international advanced power line broadband (PLC) communication technology with mature and stable Ethernet technology and intelligent data acquisition technology to achieve real-time acquisition and broadband transmission of meter data. High-tech products. Compared with traditional low-voltage narrow-band carrier communication, broadband carrier communication occupies frequency bandwidth (>1 MHz), communication rate can reach up to 200 Mbps, less interference on power lines, higher communication reliability, and better security.
It is understood that the low-voltage power line broadband carrier communication technology standard for power consumption information collection systems is the task of the State Enterprise Grid Corporation of the People's Republic of China for the 2014 annual corporate standard system revision plan, which is undertaken by the Chinese Academy of Electric Power, State Grid Henan Electric Power and other units. The Institute of Metrology, China Academy of Electric Power Technology has completed feasibility study analysis, technology selection and system testing, and took the lead in organizing the development and completion of the first draft of the technical standards. The standard consists of the power supply information acquisition system broadband carrier communication unit technical specifications, inspection specifications and communications. The agreement is composed of three parts. The main purpose is to solve the technical problems of incompatibility of broadband carrier communication equipment in power consumption information collection systems, methods that are not uniform, and equipment that cannot be interconnected and interoperable. This standard will realize the data between power consumption information collection equipment and smart energy meters. Efficient, safe and reliable transmission, fully optimize and improve the performance index of power consumption information collection systems, and provide technical support for conducting two-way interactive services, remote cost control, and online monitoring services based on the power consumption information collection system.
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