1. Kunpeng, Z., Yuan, L., Gaoyong, W., et al.: Study on the test method of ±1100 kV UHVDC Valve. Trans. China Electro-Tech. Soc. 28(1), 87–93 (2013)
2. Jackson, P.O., Abrahamsson, B., Gustavsson, D., et al.: Corrosion in HVDC valve cooling systems. IEEE Trans. Power Deliv. 2(12), 1049–1052 (1997)
3. Wei, H., Wei, F., Haifeng, W., et al.: Simulation and experimental study on the evaporative cooling system of HVDC valve unit. Trans. China Electrotech. Soc. 32(2), 264–270 (2017)
4. Guangliang, Y., Nengling, T., Xiaodong, Z.: Analysis of potential dangers leading to HVDC outage in valve cooling system. Power Syst. Protect. Control 18(38), 199–203 (2010)
5. Yuanyou, W., Zhijie, H., Rui, L.: Primary analysis on corrosion and deposit in valve cooling system of Tian-Guang HVDC project. High Voltage Eng. 32(9), 80–83 (2006)