3D modeling of an HVDC converter transformer and its application on the electrical field of windings subject to voltage harmonics

• Published in: International journal of electrical power & energy systems Vol. 117; p. 105581
• Main Authors: Sun, Weidong, Yang, Lijun, Zare, Firuz, Xia, YanWei, Cheng, Li, Zhou, Kuiyu
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.05.2020
• Subjects: Converter transformer; HVDC; Partial discharge; Voltage changing rate; Voltage harmonics; Voltage harmonics; Voltage changing rate; Partial discharge; Converter transformer; HVDC

•The voltage harmonics in valve winding of converter transformers are analyzed.•An excellent agreement between simulation and measurement is achieved.•Electric field is simulated on a 3D converter transformer model.•High dV/dt is observed and its influence on partial discharge behavior is analyzed....