中国电机工程学报2012，Vol.32Issue(9)：41-48,8.
谐波电网电压下PWM整流器增强运行控制技术
Enhanced Control Technique of PWM Converter Under Harmonically Distorted Voltage Conditions
摘要
Abstract
Based on the instantaneous active and reactive power mathematic model of PWM converter under the 5th and 7th harmonically distorted grid voltage, two different control strategy were proposed to reduce the input current harmonic components or power ripple to enhance the operation performance of PWM converter, in which the current reference of the fundamental frequency and the harmonic frequency for the different control target was deduced. Consequently, based on the fundamental frequency and harmonic frequency synchronous rotating reference frames of the grid voltage, a multiple PI CUl-rent control scheme was proposed to implement the accurate control of the fundamental frequency and harmonic frequency current. The feasibility of the proposed algorithms and control strategy were validated by experimental studies on a 1 kW PWM converter system.关键词
谐波电网电压/PWM整流器/瞬时有功和无功功率/多PI电流控制Key words
harmonically distorted grid voltage/pulsewidth modulation (PWM) converter/instantaneous active andreactive power/multiple proportional integral (PI) regulators分类
信息技术与安全科学引用本文复制引用
年珩,全宇..谐波电网电压下PWM整流器增强运行控制技术[J].中国电机工程学报,2012,32(9):41-48,8.基金项目
国家自然科学基金项目f50907057） （）
