电气传动2019，Vol.49Issue(12)：28-32,37,6.DOI:10.19457/j.1001-2095.dqcd18984
基于虚拟阻抗的电流源光伏逆变器谐波补偿法
A VI-SHE PWM Method for Current Source Inverters
摘要
Abstract
A pulse width modulation(PWM)technique,named virtual impedance selective harmonic elimination (VI-SHE)for parallel current source,operates at very low switching frequencies was proposed for PV grid-connected inverters. The model of parallel current source photovoltaic grid-connected inverter was set up. Factors influence the grid-connected current harmonics was analyzed. The PWM waveform of SHE were modified. The method for grid harmonics compensation was found out by controlling the output harmonics of inverter. The result of simulation proved that this method can effectively compensate the influence of grid harmonics on the grid-connected current and improve the grid-connected current harmonic performance.关键词
光伏并网逆变器/脉宽调制/特定谐波消除/虚拟阻抗Key words
photovoltaic grid-connected inverter/pulse width modulation(PWM)/selective harmonic elimination (SHE)/virtual impedance分类
信息技术与安全科学引用本文复制引用
李东,李峰,戎道建,郑开辉,汪东军..基于虚拟阻抗的电流源光伏逆变器谐波补偿法[J].电气传动,2019,49(12):28-32,37,6.基金项目
国网山东省电力公司科技项目(52060016016Z) （52060016016Z）
