In the early morning of November 30, 2024, the short circuit test of the flexible DC traction power supply system carried out by Huakai Electric on the Jinjing Line (the first section of Tianjin Central City to Jinghai Urban Suburban Railway) achieved circle Full success! It marks that Huakai Electric has become the first enterprise in China to successfully achieve near/far short circuit test of rated 3MW/ peak 9MW high-capacity energy router on the main line. It is a flexible DC pull The key equipment of the power supply system (such as high-power energy router,collaborative control system, etc.) has laid a solid foundation for the application and promotion of urban rail transit.

In this experiment, Li Xiaoqian, a researcher from Tsinghua University, and many other teachers visited the site of the Jinjing Line and provided professional technical guidance. Tianjin Rail Transit Group Co., LTD., China Railway Electric Gas Survey, Design and Research Institute Co., LTD., China Railway Design Group Co., LTD., China Railway Wuhan Electrification Bureau Group Co., LTD., Tianjin Metro Operating Group Tianjin Railway Power Supply Company Witnessed the success of the experiment.

In the course of the test, Huakai Electric Company organized the technical backbone to set up a special working group for short circuit test, and the team cooperated sincerely, made concerted efforts, and united! Focus on standardization and security Operation, reasonable deployment of hardware and software equipment and instruments involved in the test process, to ensure the smooth development of the short circuit test of the flexible DC traction power supply system of Tianjin static line! The test has developed a strict operation plan, including DC switchgear feeder circuit breaker equipment inspection, parameter setting, test operators to evacuate the safety area, short wiring removal, breaking Router recheck maintenance, etc., toensure the test process is safe and controllable to the maximum extent. The technical backbone of the Huakai team focuses on the analysis of key nodes and scientific breakthrough.

The success of the short-circuit test shows that Huakai Electric has made significant progress in the research and development and application of key equipment for urban rail flexible DC traction power supply, and also for the green and intelligent integration of urban rail transit Injected new momentum. In the future,all Huakai staff will continue to be committed to promoting a new generation of flexible DC traction power supply system that is safe, reliable, flexible, efficient, green,low-carbon, and economical. It will help the high-quality development of Beijing-Tianjin-Hebei integration, accelerate the formation of new quality productivity, and achieve the goal of dual-carbon urban rail transit.