湛江师范学院学报
湛江師範學院學報
담강사범학원학보
JOURNAL OF ZHANJIANG NORMAL COLLEGE
2011年
3期
60-63
,共4页
PWM整流%直接功率控制%瞬时功率
PWM整流%直接功率控製%瞬時功率
PWM정류%직접공솔공제%순시공솔
PWM rectifying circuit%direct power control%instantaneous power
根据直接功率控制原理,分析了瞬时有功功率和无功功率对于三相PWM控制系统的作用,并根据坐标变换理论得到了瞬时有功功率和无功功率.另外,为了减少误差,在瞬时有功功率分析中引入了电流补偿.最后根据传统的开关表对系统进行控制.仿真结果进一步说明了所用方法的合理性和有效性.
根據直接功率控製原理,分析瞭瞬時有功功率和無功功率對于三相PWM控製繫統的作用,併根據坐標變換理論得到瞭瞬時有功功率和無功功率.另外,為瞭減少誤差,在瞬時有功功率分析中引入瞭電流補償.最後根據傳統的開關錶對繫統進行控製.倣真結果進一步說明瞭所用方法的閤理性和有效性.
근거직접공솔공제원리,분석료순시유공공솔화무공공솔대우삼상PWM공제계통적작용,병근거좌표변환이론득도료순시유공공솔화무공공솔.령외,위료감소오차,재순시유공공솔분석중인입료전류보상.최후근거전통적개관표대계통진행공제.방진결과진일보설명료소용방법적합이성화유효성.
Basing on the control principle of direct power,the influence of the instantaneous active power and reactive power on the three phase PWM control system is analyzed,and the instantaneous active power and reactive power according the coordinate transformation theory is obtained.Furthermore,in order to reduce errors,the current compensation was introduced in the analysis of the instantaneous active power.Finally the traditional switching table was used to control the system.The simulation results further indicate this method is reasonable and valid.
