On May 28th, the reporter learned from the State Grid Ningxia Electric Power Co., Ltd. that the company actively promoted new energy high-voltage, high-frequency traversing capability rectification and system protection and construction work. At present, it has completed a 1.3-fold pressure capacity transformation of a 2.08-kilowatt wind turbine, and photovoltaic The transformation of the high-frequency and high-pressure capability of the power station has been completed by 90%. As the nation's first comprehensive demonstration zone for new energy, Ningxia's new energy has developed rapidly in recent years. At present, New Energy has become the second largest power source in Ningxia Power Grid, with installed capacity accounting for more than 40%, and the maximum power generation output occupies nearly 90% of the electric load. After a high proportion of new energy sources are integrated into the grid, it brings with it a series of new problems such as a decrease in the system's rotational inertia and subsynchronous oscillations. At present, new energy station power generation equipment is low in technical standards relating to high-voltage and high-frequency capabilities, and is incompatible with the operational requirements of multiple DC transmission end-use power grids in Ningxia. It not only limits the capacity of DC transmission, but also presents a large-scale Chain off the net causes the risk of system instability. In addition, there is a gap between the management and control of new energy sources and the control of conventional power sources, and the lack of information sensing and control methods makes it difficult to adapt to the requirements for safe and stable operation of new energy and high-proportion grids. In order to reduce the risk of new energy chain off-grid accidents caused by AC/DC equipment failures, State Grid Ningxia Power actively promoted Ningxia Power Grid system protection and construction, and piloted the construction of new energy sites and stations for panoramic monitoring and construction. The failure occurred within 200 milliseconds after the failure occurred. The rapid and accurate statistics of energy loss from network decoupling and low power loss increase the overall process monitoring and perception capabilities of new energy sites and emergency control capabilities during the accident, and reduce the impact of severe faults on the stable operation of the power grid. On the other hand, it fully promoted the rectification of high-frequency and high-voltage capabilities of new energy stations and urged the autonomous region's Economic and Information Technology Commission to issue incentives and measures to encourage new energy-generating enterprises to accelerate the technological transformation of power generation equipment, strengthen process control, and notify the whole improvement rate on a monthly basis. The new energy field station's high-pressure crossing capability has been increased to 1.3 times the nominal voltage, and the high-frequency capability has been improved to 51.5 Hz. This gradually realizes the new-energy grid-related performance of conventional power supply, and fundamentally addresses the high-frequency and high-voltage of new energy field stations during grid faults. Off the net problem. In the next step, the State Grid Ningxia Electric Power will accelerate the construction of new energy station high wear capacity rectification and panoramic monitoring pilots to ensure that the system protection and construction of Ningxia Power Grid will be successfully completed on schedule to ensure that the Shanghai Temple-Shandong UHV DC project will be put into operation after Ningxia Delivery The DC group operates safely and stably, improving the new energy absorption capacity of Ningxia Power Grid and the intrinsic safety level of the power grid. our mainly products are filter drier, replaceable filter drier, oil separator, suction line accumulator, liquid receive, pressure hose ,valves and other refrigeration parts. Pressure Vessel,Pressure Vessel Tank,Unfired Pressure Vessel,Expansion Vessel Pressure Hangzhou Refworld Mechanic&Electric Co.,Ltd , https://www.refworld.cn