一种高压SVG用于容性负载下的谐波补偿方法  

A High Voltage SvG Method for Harmonic Compensation under Capacitive Load

作　　者：魏洪实 田博华 孙贤大 王飞义 吕孝国 息鹏 李航 Wei Hongshi;Tian Bohua;Sun Xianda;Wang Feiyi;Lv Xiaoguo;Xi Peng;Li Hang

机构地区：[1]辽宁荣信兴业电力技术有限公司

出　　处：《变频器世界》2024年第1期136-139,共4页The World of Inverters

摘　　要：高压供电系统电缆化趋势明显,尤其城市供电网及新能源场站,高压电缆存在较大的寄生电容,针对容性非线性负载,常规高压SVG采用电流补偿模式进行谐波补偿时存在不稳定现象,引起系统谐振和谐波放大。本文提出了一种基于阻抗控制的谐波补偿策略,仿真结果验证了控制策略的有效性。The trend of high-voltage power supply system cables is obvious,especially in urban power supply networks and new energy stations.High-voltage cables have large parasitic capacitances.For capacitive nonlinear loads,conventional high-voltage SvGs have instability when using current compensation mode for harmonic compensation causing system resonance and harmonic amplification.This paper proposes a harmonic compensation strategy based on impedance control,and the simulation results verify the effectiveness of the control strategy.

关 键 词：容性非线性负载 静止无功发生器 谐波补偿 

分 类 号：U223.63[交通运输工程—道路与铁道工程]