基于多种PWM控制策略的逆变器谐波分析研究  

Harmonic Analysis of Inverters based on Various PWM Control Strategies

作　　者：林敏[1] LIN Min(Hubei Key Laboratory of Cascade Hydropower Stations Operation ＆ Control, （China Three Gorges University）, Yichang 443002, Chin)

机构地区：[1]梯级水电站运行与控制湖北省重点实验室(三峡大学),湖北宜昌443002

出　　处：《通信电源技术》2017年第4期20-21,23,共3页Telecom Power Technology

摘　　要：文中采用了多种PWM控制技术来驱动逆变器,对交流侧的逆变电压进行FFT分析,可以得到其在不同控制策略下的谐波分布规律。实验结果表明在倍频控制策略下的低次谐波和高次谐波相对较小,谐波总畸变率最小,在不考虑设计滤波电容的情况下具有最优的谐波运行特性。In this paper,a variety of PWM control technology to drive the inverter is analyzed.The FFT analysis of the AC voltage can be obtained under different control strategies of the harmonic distribution.The experimental results show that the low harmonics and higher harmonics are relatively small under the frequency doubling control strategy,and the total harmonic distortion rate is the smallest,and has optimal harmonic operation characteristic considered without he design of the filter capacitor.

关 键 词：逆变器 双极性PWM控制 单极性PWM控制 

分 类 号：TM464[电气工程—电器]