The world's first flexible DC power grid is coming soon At 17:00 on the 10th, the national grid ±500 kV Zhangbei flexible DC power grid project line successfully withstood the impact of instantaneous short-circuit current, and completed the last "big test" before the commissioning-artificial ground short-circuit test. At this point, the world's first flexible DC power grid is officially equipped with power transmission conditions. State Grid Jibei Power stated that flexible direct current (flexible) is a new generation of direct current transmission technology with a voltage source converter as the core that emerged in the 1990s. As we all know, conventional direct current can only be located in point-to-point transmission instead of networking due to unidirectional current flow; flexible direct current uses the most advanced voltage source converter (VSC) and full control device (IGBT), which is quite In a fully controllable water pump, the direction, speed and flow of water flow become precise and controllable. This "flexible" and flexible feature allows it to play a major role in the large-scale grid connection to intermittent and fluctuating renewable energy. The total investment of the Zhangbei flexible DC power grid test demonstration project is 12.478 billion yuan. New 4-terminal converter stations and 666 kilometers of lines in Zhangbei, Kangbao, Fengning and Beijing will be built, with a total converter capacity of 9 million kilowatts. It is expected to be put into operation before the end of June. (Reporter Qu Jian) Electric Coffee Appliance,Coffee Maker,Espresso Grinder,Coffee Bean Grinder Evergreen Houseware , https://www.jmelectricalappliance.com