The smart grid standard system is an overall grasp of the smart grid standards from the macro level. It is to solve the demand for standardization work in smart grid construction and technology development, and is also the basis for the development of smart grid standardization work. The smart grid technology standard system includes basic and general, planning and design, power generation, transmission, substation, power distribution, power consumption, dispatch, information and communication. Foundation and application: Foundation and application are the basic standards that must be adhered to in smart grid construction. Includes terminology and methodology, power quality. Terminology and methodology define the definition of a smart grid and the system approach to guide the overall planning and development of the smart grid. Power quality is a common technical standard for power quality in all branches of the smart grid. Planning and design: The basic principles to be followed in the smart grid planning and design phase include smart grid planning and design and simulation modeling. The smart grid planning and design mainly focuses on the management and technical regulations given by the smart grid planning and related thematic planning, including the depth of the planning content, the safety and stability standards to be met, and the safety and stability analysis and calculation methods. Power generation: including conventional power network source coordination, large-scale new energy generation grid-connected and large-capacity energy storage systems connected to the grid. Conventional power source coordination technology refers to protection technologies such as conventional power grid protection and control technologies and status monitoring of generator sets. The large-scale new energy power generation grid-connecting branch mainly solves the impact of large-scale new energy access on the dispatching, operation and control of the power grid, ensures the safe and stable operation of the power system after large-scale new energy access, and promotes the coordinated development of the power grid and new energy. . Large-capacity energy storage technology is an important way to improve the grid's acceptance of intermittent power supplies. It is necessary to formulate a grid-connected standard for large-capacity energy storage systems, and to standardize the access characteristics, characteristic tests, grid-connected operation control, monitoring system functions, and monitoring equipment of large-scale energy storage systems. Transmission: It includes four key technical areas: UHV transmission, flexible DC transmission, flexible AC transmission, and condition monitoring. UHV transmission standards include UHV AC and DC design, construction, equipment, operation and other standard series. Flexible DC transmission technology has strong technical advantages in new energy grid-connected, distributed generation grid-connected, island power supply, etc., which can effectively improve system stability and improve power quality. Flexible AC transmission technology can improve the stability, controllability, operating performance and power quality of transmission and distribution systems. Providing informationized and digital shared data for line operation management and maintenance, realizing line condition monitoring, line operation environment monitoring and intelligent inspection technology, ensuring line safety and efficient inspection, is one of the goals of building a smart grid. Substation: Focus on the field of intelligent substation application technology. Among them, the status of substation equipment and the relevant standards of the operating environment monitoring system are uniformly planned and designed in the field of transmission. This technical field only involves the monitoring and evaluation of related specific equipment. The substation is responsible for transforming voltage levels, collecting currents, distributing electrical energy, and adjusting voltage. The intelligent operation of substations is an important basis for realizing smart grids. Power distribution: With the development of smart grid technology, primary and secondary intelligent devices will be widely used, and a large number of distributed power and energy storage systems will be connected to the distribution network. The operation, control and management modes of the distribution network will be A big change has taken place. A large number of distributed energy storage systems in the distribution network will become an important energy system that can be adjusted by the distribution network. When the energy storage system is connected to the distribution network to improve the efficiency of power utilization and improve the reliability of power supply, it will also change the traditional power supply. the way. The distributed power supply accesses the distribution network and puts forward new requirements for power distribution operation management. The field includes the main series of standards for distributed power grid-connected, including distributed power access distribution network technical regulations, distributed power grid-connected characteristics test standards, distributed power access distribution network operation control standards, distributed power supplies. Equipment standards, etc. Electricity: Focus on seven key technology areas: two-way interactive services, electricity information collection, intelligent energy services, smart power detection, electric vehicle charging and discharging, energy saving and energy efficiency, microgrid grid. Two-way interactive service is an important manifestation of smart grid informationization, automation and interaction. The construction of two-way interactive service platform can better meet the intelligent and diversified service needs of users, and improve the power supply emergency response capability. The collection of electricity information includes a smart meter and a power information collection system. Intelligent energy is based on improving the service level of end users, real-time monitoring of the user's energy consumption, and according to the user's energy demand and energy supply, to achieve orderly power management and energy efficiency management intelligence. The intelligent power detection detects and tests the metering device and the power device of the intelligent power link, and is an important technical guarantee for carrying out various tasks of intelligent power consumption. Electric vehicle charging and discharging facilities can realize two-way energy conversion between electric vehicles and power grids, and are an important part of smart grid construction. Scheduling: Mainly concerned with the smart grid dispatching technical support system, including centralized monitoring of grid operation. The smart grid dispatching technology standard system is divided into basic information standards and functional specifications according to the hierarchical structure, and the functional specifications are composed of basic platforms and application functional specifications. At present, the substation and distribution operation mode is shifting to “centralized monitoring + operation and maintenance operation stationâ€, and it is necessary to formulate corresponding communication protocol standards, centralized control system architecture specifications, and application system functional specifications. Information Communication: Information communication is the foundation of smart grid and the basis for realizing the function of smart grid. This branch focuses on three key technology areas: communication networks, information applications, and information security. The communication network is the basis for realizing information communication, including transmission network, power distribution and power side communication network, service network, communication support network, and smart grid information basic platform. Informatization application provides service support for informationization of various professional branches, involving mobile information access, data transmission, information integration and exchange, centralized data storage and processing, and information presentation. Information security is a basic security technology standard that must be observed in smart grid construction. Ac Contactor,Contactor For Ac Unit,Compressor Contactor,Air Conditioner Contactor NanJing QUANNING electric Co.,Ltd , https://www.quanningtrading.com