中国电机工程学报
中國電機工程學報
중국전궤공정학보
ZHONGGUO DIANJI GONGCHENG XUEBAO
2015年
10期
2544-2551
,共8页
王庚%杨明%牛里%贵献国%徐殿国
王庚%楊明%牛裏%貴獻國%徐殿國
왕경%양명%우리%귀헌국%서전국
永磁同步电机%电流预测控制%PWM调制%电机模型参数误差%电流静差消除
永磁同步電機%電流預測控製%PWM調製%電機模型參數誤差%電流靜差消除
영자동보전궤%전류예측공제%PWM조제%전궤모형삼수오차%전류정차소제
permanent magnet synchronous motor (PMSM)%predictive current control%pulse width modulation (PWM)%parameter mismatch of machine model%current error elimination
永磁同步电机电流环控制性能是决定驱动系统性能的核心因素。电流预测控制能够使永磁同步电机电流控制获得良好的动态响应,但是控制器电机模型参数与实际电机参数不一致会引起电流静差,导致系统效率降低,无法输出额定转矩,以及无法工作在力矩控制模式等问题。该文根据永磁同步电机预测控制模型,详细分析了控制器电机模型参数误差对电流控制的影响,并提出了一种静差消除算法。这种方法主要适用于控制器中电机模型电感及磁链参数不准的情况,通过在d轴电流控制中加入误差积分作用,并根据q轴电流的响应,动态调整控制器电机模型磁链参数,消除了控制器电机模型参数不准引起的静差。通过仿真分析和在3.3 kW 永磁同步电机驱动平台上的实验,验证了该算法的有效性。
永磁同步電機電流環控製性能是決定驅動繫統性能的覈心因素。電流預測控製能夠使永磁同步電機電流控製穫得良好的動態響應,但是控製器電機模型參數與實際電機參數不一緻會引起電流靜差,導緻繫統效率降低,無法輸齣額定轉矩,以及無法工作在力矩控製模式等問題。該文根據永磁同步電機預測控製模型,詳細分析瞭控製器電機模型參數誤差對電流控製的影響,併提齣瞭一種靜差消除算法。這種方法主要適用于控製器中電機模型電感及磁鏈參數不準的情況,通過在d軸電流控製中加入誤差積分作用,併根據q軸電流的響應,動態調整控製器電機模型磁鏈參數,消除瞭控製器電機模型參數不準引起的靜差。通過倣真分析和在3.3 kW 永磁同步電機驅動平檯上的實驗,驗證瞭該算法的有效性。
영자동보전궤전류배공제성능시결정구동계통성능적핵심인소。전류예측공제능구사영자동보전궤전류공제획득량호적동태향응,단시공제기전궤모형삼수여실제전궤삼수불일치회인기전류정차,도치계통효솔강저,무법수출액정전구,이급무법공작재력구공제모식등문제。해문근거영자동보전궤예측공제모형,상세분석료공제기전궤모형삼수오차대전류공제적영향,병제출료일충정차소제산법。저충방법주요괄용우공제기중전궤모형전감급자련삼수불준적정황,통과재d축전류공제중가입오차적분작용,병근거q축전류적향응,동태조정공제기전궤모형자련삼수,소제료공제기전궤모형삼수불준인기적정차。통과방진분석화재3.3 kW 영자동보전궤구동평태상적실험,험증료해산법적유효성。
The current control performance of permanent magnet synchronous motor (PMSM) is the key factor that determines the performance of electrical drive system. Predictive current control can improve the dynamic response of PMSM current control. However, the parameter mismatch in the controller machine model can lead to static current error, which will cause problems such as lowering system’s efficiency, failing to output nominal torque, not being able to operate in the torque control mode, and so on. This paper presented an algorithm to eliminate the static error of PMSM predictive current control when the model in controller had parameter mismatches with the real machine. The algorithm mainly applies to cases where the controller machine model inductance and flux are not accurate. The static error is eliminated by introducing error integration ind axis current control and by dynamically adjusting the flux in the machine model according to theq axis current error. The algorithm is verified through simulations and experiments on a 3.3kW PMSM drive platform.