高电压技术2011,Vol.37Issue(7):1590-1597,8.
互联系统电磁暂态交互作用研究,Ⅳ:直流侧对交流侧的影响
Transient Interaction of HVAC and HVDC in Converter Station in HVDC, Ⅳ : Effects of DC Sides on AC Sides
摘要
Abstract
China AC-DC power systems are interconnected to form a huge power grid. The nanoseconds, microseconds, milliseconds electromagnetic transient were generated due to AC-DC system operation and fault, the DC converter valve movement, the load generated by changes in the interaction of AC-DC interconnected system electromagnetic transient, which can pose a hazard on AC and DC power systems, in particular, can lead to the commutation of DC system failures and atresia such serious incidents. Based on the broadband characteristics model which can accurately reflect the existing AC-DC interconnected system electromagnetic transient characteristics of the key components, we applied the PSCAD / EMTDC platform to establish a computational model, and revealed DC side electromagnetic transient interaction on AC side. The results show that the DC system has little effect on AC system electromagnetic transient, In various types of failures, the overvoltage produced at side of 750 kV, 330 kV lines and bus are in the allowable range.关键词
交直流互联系统/电磁暂态模型/交互作用/高压直流输电换流站/接地故障/换流阀闭锁Key words
AC and DC interaction power system/electromagnetic model/interaction effects/converter station inHVDC/ground fault/converter valve commutation failure分类
信息技术与安全科学引用本文复制引用
陈水明,余占清,黄璐璐,谢海滨..互联系统电磁暂态交互作用研究,Ⅳ:直流侧对交流侧的影响[J].高电压技术,2011,37(7):1590-1597,8.基金项目
国家自然科学基金(50877038). ()