电测与仪表
電測與儀錶
전측여의표
ELECTRICAL MEASUREMENT & INSTRUMENTATION
2015年
16期
97-100
,共4页
SVPWM%双闭环控制%无电感%电流解耦控制%整流器
SVPWM%雙閉環控製%無電感%電流解耦控製%整流器
SVPWM%쌍폐배공제%무전감%전류해우공제%정류기
SVPWM%double closed loops control%without inductance%decoupling control block%rectifier
电压、电流双闭环控制方案在三相PWM整流器中得到了广泛的应用，但是由于网侧的电感参数值在使用过程中会有变化，以及传统的PWM控制策略下直流侧电压与功率存在波动较大的缺点，使得控制系统的性能提升受到限制，因此提出了基于一种新的电压电流双闭环和SVPWM调制的控制策略，该策略实现了在同步旋转dq坐标系下无电感L的电流解耦控制，仿真结果表明了该策略的正确性和可行性。
電壓、電流雙閉環控製方案在三相PWM整流器中得到瞭廣汎的應用，但是由于網側的電感參數值在使用過程中會有變化，以及傳統的PWM控製策略下直流側電壓與功率存在波動較大的缺點，使得控製繫統的性能提升受到限製，因此提齣瞭基于一種新的電壓電流雙閉環和SVPWM調製的控製策略，該策略實現瞭在同步鏇轉dq坐標繫下無電感L的電流解耦控製，倣真結果錶明瞭該策略的正確性和可行性。
전압、전류쌍폐배공제방안재삼상PWM정류기중득도료엄범적응용，단시유우망측적전감삼수치재사용과정중회유변화，이급전통적PWM공제책략하직류측전압여공솔존재파동교대적결점，사득공제계통적성능제승수도한제，인차제출료기우일충신적전압전류쌍폐배화SVPWM조제적공제책략，해책략실현료재동보선전dq좌표계하무전감L적전류해우공제，방진결과표명료해책략적정학성화가행성。
The double closed loop control scheme based on current loop and outer voltage loop is widely used in the three-phase voltage-sourced PWM rectifier.In fact, because of the variety of the network input inductor value and DC voltage and power fluctuations in the presence of the larger disadvantages of traditional PWM control strategy,so that the performance improvement of the control strategy is limited.This paper proposed a novel double closed loop control strategy with SVPWM modulation, which consists of decoupling current controller without exact value of induct-ance in d-q synchronous frame.The simulation analysis results demonstrate the validity of the proposed method and the feasibility of the control strategy.
