The world's first flexible DC converter station with the highest voltage grade and the largest transmission capacity is put into operation

Company owned by hubei engineering design institute has participated in the design of the highest voltage level in the world, conveying capacity of the largest, most complete function of flexible dc converter station - chongqing hubei dc network engineering nantong back-to-back converter station was officially opened in xianfeng, marked the hubei engineering design institute to participate in the design of the first flexible HVDC back-to-back converter station put into operation.

The Chongqing-Hubei DC back-to-back networking project adopts flexible DC power transmission technology with rated voltage of ±420 kv. Nantong Converter station includes two converter units with transmission capacity of 1.25 million kW each. The project was approved by the state in December 2016, and the project was started in April 2017.

This project is the first flexible DC demonstration project of State Grid and the first flexible DC transmission project in commercial operation of State Grid. Chongqing hubei project put into production will implement each asynchronous interconnected power grid and the four northeastern provinces of central China power grid, southwest of build form grids, fundamentally solve the problem of long chain of 500 kv ac power grid stability, effectively reduce the uhv grid "stiffness weak hand in the" structural risk, a substantial increase in each grid each other aid ability between the eastern and central China power grid, Effectively improve the transport capacity of Sichuan-Chongqing section. At the same time, the project is also a green project to promote the development of clean energy and promote the realization of energy conservation and emission reduction and air pollution prevention and control targets.