电网技术2018，Vol.42Issue(3)：1007-1014,8.DOI:10.13335/j.1000-3673.pst.2017.0960
大型SVC中三相电抗器的电磁干扰测试与屏蔽措施评估
Electromagnetic Interference and Shielding Effect of 3-Phase Air Core Reactors for Large SVC Equipment
摘要
Abstract
The electromagnetic compatibility problem of large static var compensator (SVC) equipment in flexible AC transmission systems (FACTS) is particular and more and more extensive. In order to get better understanding of electromagnetic interference of each device in substation, and research effectiveness of various shielding measures, this paper develops field measurement near SVC in a substation. The electromagnetic compatibility problem is present by induced current in grounding grids and in shielding layers of secondary cable, and interference voltage in DC system. The paper builds a three-dimensional electromagnetic field simulation model for SVC and its adjacent areas. Equivalence of the model is validated by comparing with space magnetic field and induced current in field test. The improving effects against electromagnetic interference and the changes of inductance value under different shielding materials and various shielding methods are analyzed. Results show that there is intense electromagnetic interference in grounding system and DC system during SVC operation. Using silicon steel sheet, aluminum plate, iron plate materials can improve the effects in reactor area at bottom of the magnetic field, and make little influence on inductance parameters. Compared to high permeability materials, high conductivity materials can get better shielding effects in some ways.关键词
静态无功补偿装置/电磁干扰/电抗器/屏蔽效果/磁场Key words
staticvar compensator (SVC)/electromagnetic interference (EMI)/reactor/shielding effect/magnetic field分类
信息技术与安全科学引用本文复制引用
赵世林,周凯,温才权,宋永佳,全杰雄,马春亮..大型SVC中三相电抗器的电磁干扰测试与屏蔽措施评估[J].电网技术,2018,42(3):1007-1014,8.基金项目
中国博士后科学基金(2015T80976). Project Supported by China Postdoctoral Science Foundation (2015T80976). （2015T80976）
