摘要
通过对三相非线性负载时正弦电流畸变波形的数学分析,论证中性线上存在剩余基波和谐波电流,以及中性点上谐波电压存在的原因,给出三相电源负载与中性点上电压的关系式,为三相非线性负载下接地系统的选择提供参考依据。
Based on math analysis of the distorted wave of sinusoid electric current when the three-phase circuit non-linear load,the article probes the cause why there remains fundamental wave and the harmonic current on neutral line,and the cause of the existence of harmonic voltage on neutral point.In order to choose a suitable grounding system under three-phase nonlinear loads,the article also probes the relationship between the voltage and three-phase non-linear loads in mathematical expression.
出处
《四川教育学院学报》
2011年第7期122-124,共3页
Journal of Sichuan College of Education
关键词
中性线
中性点
谐波电流
谐波电压
neutral line
neutral point
harmonic voltage
harmonic current