The Zhangbei high-voltage direct current (HVDC) grid in the Beijing-Tianjin-Hebei area of China will enable the integration of remote wind, solar and hydro energy in a transmission ring that ensures optimisation of power flow.
This HVDC grid is designed by State Grid Corporation of China (SGCC). HVDC is a technology for transmitting large amounts of electricity over long distances with minimal losses. Traditionally, they are point-to-point links, but the Zhangbei pilot project is unique because several stations are connected with each other in a network. ABB, as well as other local suppliers, is supplying equipment for this project, which will be the world’s largest Voltage Sourced Converter (VSC) HVDC system with four interconnected stations in a ring network, delivering up to 4,500MW of clean energy.