Hitachi ABB Power Grids To Provide Transmission Technology For Hydropower Project

Hitachi ABB Power Grids on Feb. 22 said that it will provide the State Grid Corporation of China (SGCC) with advanced technology solutions for the Baihetan-Jiangsu ultrahigh-voltage direct current (UHVDC) transmission link.
 
The Baihetan hydropower project will supply clean energy equivalent to that generated by burning almost 20 million tons of coal per year.
 
The Baihetan-Jiangsu UHVDC link will transmit up to 8 GW of electricity over more than 2,000 kilometers to the Jiangsu province, which has a growing population of 80 million and is China’s second-largest provincial economy.
 
SGCC in 2020 awarded Hitachi ABB Power Grids a similar order for three UHVDC links in China. SGCC and Hitachi ABB Power Grids have worked together for around 30 years on most of China’s HVDC and UHVDC projects.
 
The link uses a combination of UHVDC Classic – key for transferring large amounts of power over very long distances with low power losses – and voltage source converter-based HVDC, which stabilizes the AC grid at the receiving end of the link. Hitachi ABB Power Grids has previously deployed hybrid HVDC at the 500-kV level, but it has never been implemented at 800 kV.
 
The orders include UHVDC classic valves, wall bushings, converter transformers, DC breakers, high-voltage live tank and dead tank breakers to help enhance the safety, reliability and efficiency of the power network.