摘要
分析了分布式电源对配电网继电保护的影响。在此基础上,提出了分布式电源接入配电网的自适应电流速断保护方案。根据故障分量求解系统等效阻抗并判断故障类型。通过Matlab/Simulink仿真验证了保护方案的可行性。结果表明,此方案能快速可靠切除故障。
According to analysis of the influence,the scheme of adaptive current fast-tripping protection based on distributed generation（DG） access to the power distribution network was proposed.The equivalent impedance could be solved by the fault component and the fault type could be identified in the scheme.The feasibility of the adaptive current fast-tripping protection was proved by Matlab/Simulink.The simulation results show that the fault can be cut off quickly and accurately in the scheme.
出处
《低压电器》
北大核心
2011年第21期23-26,57,共5页
Low Voltage Apparatus
关键词
分布式电源
配电网
自适应电流保护
故障分量
distributed generation（DG）
power distribution networks
adaptive current protection
fault component
