World’s first HVDC grid enabled in China
The Zhangbei high-voltage direct current (HVDC) grid has enabled the integration of renewables into a transmission ring optimised for flow of power.
This unique “HVDC grid” is designed by State Grid Corporation of China (SGCC), one of the world’s leading power utilities. It has incorporated remote wind, solar and hydro energy into the transmission ring while ensuring reliability of power supply.
While designed by the SGCC, ABB will supply several critical elements including an HVDC Light valve, wall bushings, transformer components, high-voltage capacitors, and power semiconductor devices.
HVDC, while highly efficient as a means of transmitting large amounts of power over large distances, is normally using in point-to-point links. The Zhangbei pilot project is unique because several stations are connected with each other in a network. It will also be the world’s largest and most advanced Voltage Sourced Converter (VSC) HVDC system with four interconnected stations in a ring network, delivering up to 4,500 megawatts (MW) of clean energy.
“ABB pioneered commercial HVDC technology more than 60 years ago and introduced crucial innovations like HVDC Light and ultra-high HVDC (UHVDC) transmission to ensure reliable and efficient power supplies,” said Claudio Facchin, president of ABB’s Power Grids division. “ABB’s participation in this project reflects SGCC’s ongoing confidence in ABB’s proven HVDC expertise and our long-term efforts to help China strengthen its power infrastructure while minimizing environmental impact”.
Source: T&D World
Photo (for illustrative purposes): HVDC Converter Station / ABB/ ABB Press Release/ With Permission