World's Largest Steel Rack for Flexible DC Project Built to Designed Height

The grid rack of the central back-to-back direct current (DC) project in the Guangdong-Hong Kong-Macao Greater Bay Area was recently built to the designed height.

The project is designed with two sets of 1.5 million-kilowatt flexible DC conversion current units which include four valve halls and the actuation circuits.

Located in Zengcheng district in Guangzhou, South China's Guangdong Province, the project covers an area larger than four standard football pitches and will be the world's largest steel power grid project structure.

A major power passage to connect grids in eastern and western parts of Guangdong, the project is expected to help solve grid security problems like short-circuits, interference between alternating and direct currents and widespread blackouts and to contribute to sufficient and stable power for the development of the Greater Bay Area.

Guangzhou Electric Power Design Institute Co., Ltd, a subsidiary of China Energy Engineering Group Co., Ltd., is responsible for the project's design.

(Executive editor: Wang Ruoting)