机电工程技术2025，Vol.54Issue(23)：153-157,5.DOI:10.3969/j.issn.1009-9492.2025.23.026
离网型风光储联合发电系统中逆变器的谐波抑制优化
Optimization of Harmonic Suppression for Inverters in Off Grid Wind Solar Energy Storage Combined Power Generation Systems
周礼正 1王涵 1侯文华 1李玮1
作者信息
- 1. 华能新能源股份有限公司辽宁分公司,沈阳 110004
- 折叠
摘要
Abstract
A comprehensive optimization strategy is proposed for harmonic suppression in inverters used in off-grid wind-solar energy storage systems.Nonlinear loads and inverter switching actions are identified as the main sources of harmonics.A dual closed-loop control strategy,coordinating the voltage inner loop and current outer loop,ensures output voltage stability and current distortion suppression.By incorporating unipolar frequency doubling SPWM modulation with optimized carrier frequency and modulation depth,harmonic distribution is improved,enhancing system power quality.A collaborative method based on virtual synchronous generators utilizes energy storage systems for dynamic power balancing,further boosting stability and harmonic suppression.Simulation and experimental results confirm significant reductions in total harmonic distortion(THD):voltage THD decreases to 3.5%,current THD to 4.2%,and dynamic response time improves to under 15 ms.Compared to traditional approaches,this strategy effectively disperses and suppresses harmonic energy,excelling in managing both low-and high-frequency harmonics.关键词
离网型风光储联合发电系统/逆变器/谐波抑制Key words
off grid wind solar energy storage combined power generation system/inverter/harmonic suppression分类
信息技术与安全科学引用本文复制引用
周礼正,王涵,侯文华,李玮..离网型风光储联合发电系统中逆变器的谐波抑制优化[J].机电工程技术,2025,54(23):153-157,5.
