摘要
简要阐述了变压器和应涌流的产生机理,并在PSCAD仿真软件中建立并联变压器和应涌流模型。通过仿真分析了变压器和应涌流波形及谐波电流特点,同时分析了变压器中性点直接接地系统零序电流产生的原因和谐波电流成分,并指出了其对继电保护产生的影响。
This paper simply stated the principle of sympathetic inrush, and created the parallel transformer sympathetic inrush model in PSCAD. This paper analyzed the characteristics of transformer sympathetic inrush and harmonic current by simulation, gave the causes of zero-sequence current and its harmonic current component in transformer neutral directly grounded system at the same time, and pointed out the effects on relay protection
出处
《电网与清洁能源》
2012年第2期56-60,共5页
Power System and Clean Energy
关键词
变压器
和应涌流
零序电流
仿真
保护
transformer
sympathetic inrush
zero-sequence current
simulation
relay protection
