摘要
讨论了非线性负载（点焊机）所产生的高次谐波对电网的影响，通过现场检测结果与理论分析确定电网不稳定的因素，从而制定了解决问题的方法。理论推断与实践证明：使用合适的（避免谐波的放大振荡）谐波滤波电容器组可有效地抑制点焊机这类非线性负载产生的高次谐波，从而达到注入公共电网的谐波量符合国家规定的谐波标准的目的。
Discussed the impact of harmonics produced by non -linear load to electrical power network. By in -field testing result and theory analysis,ascertain the reasom of electrical power network instability, and the find the solving methods. The tgeory conclusion and practice proves：using proper（ to avoid harmonic amplify and concuss） harmonic -filter capacitnr can effectively restrain the high frequency harmonic produced by non -linear load（ e. g. point welding machine） so as to meet the requirement of national harmonic standard.
出处
《上海电器技术》
2010年第3期1-4,共4页
Shanghai Electric Appliance Technology
关键词
非线性负荷
点焊机
谐波
电容器
电抗器
non -linear load point welding machine harmonic capacitor reactor
