Zhou, Yuanxiang; Huang, Xin
Transformers Magazine Vol. 8, No. 1, 2021
Nowadays, the huge demand for long-distance UHVDC transportation prompts research on the super large capacity converter transformer. Especially in China, UHVDC projects are widely built and put into use. This article reviews the history of converter transformer research and introduces details in the design of the converter transformer. The recent advances in the fundamental study of converter transformers such as partial discharge, space charge, and material performance test are also introduced in the article. In the end, this article summarize...
Hrčak ID: 249885
Chong, Tan; Tao, Xu; Lianhuan, Xu; Mingsheng, Wang
Transformers Magazine Vol. 5, No. 4, 2018
This paper briefly introduces the world's first ±1,100 kV HVDC transmission project, focusing on the winding design of a converter transformer that was constructed for the project, based on the hot spot temperature rise. The winding temperature rise was first measured during the initial design of the transformer. Then the design of the oil channel was improved and the conductors arrangement was optimized. By changing the oil flow in the line winding and the distribution of eddy-current losses at the winding end, design margin for winding hot sp...
Hrčak ID: 214869