电力系统保护与控制2018，Vol.46Issue(4)：50-56,7.DOI:10.7667/PSPC170081
调相机接入对发电机失磁保护的影响
Impact of synchronous condenser access on generator loss of excitation protection
摘要
Abstract
Recently, more attention is paid to Synchronous Condenser (SC) as the problem of "strong DC and weak AC"is becoming increasingly serious. 300 Mvar SC will be put into service soon, which may affect the normal operation of the system relay protection. This paper analyses the impact of the SC access on the operation of Loss of Excitation (LOE) relay. A single machine infinite bus system model with SC is established in PSCAD/EMTDC and the operation of LOE protection under different generator loadings and different LOE modes is simulated. The simulation results show that the installation of the SC has adverse impacts on the LOE relay in the form of delay time and/or under-reach phenomenon, which is bound to threaten the security of generators.关键词
调相机/发电机失磁保护/无功补偿/延时动作Key words
synchronous condenser/generator loss of excitation (LOE) protection/reactive power compensation/delay operation引用本文复制引用
郑涛,余青蔚,詹荣荣,于硕..调相机接入对发电机失磁保护的影响[J].电力系统保护与控制,2018,46(4):50-56,7.基金项目
国家重点研发计划智能电网技术与装备重点专项(2016YBF0900600)This work is supported by Key Project of Smart Grid Technology and Equipment of National Key Research and Development Plan of China (No. 2016YBF0900600). （2016YBF0900600）
