CAJ | 학술논문

为消除交流伺服系统运行易受电机参数变化和负载扰动等不确定性的影响，使其动态响应和抗扰能力能很好地兼顾，提出了一种基于预测控制的新型矢量控制方案。该方案引入自动微分法，使预测控制中泰勒级数计算变成简单的数值运算。选择系统误差为二次型性能指标，并对性能指标和永磁同步电机数学模型进行泰勒展开，把求解雅克比矩阵问题转化为求解泰勒级数的灵敏度。结合 Levenberg-Marquardt算法对永磁同步电机进行速度控制，运用德斯拜思实时仿真系统进行半实物仿真实验验证。实验结果表明，所设计的控制器提高了系统鲁棒性，整个控制系统具有较好的动、静态特性。
위소제교류사복계통운행역수전궤삼수변화화부재우동등불학정성적영향，사기동태향응화항우능력능흔호지겸고，제출료일충기우예측공제적신형시량공제방안。해방안인입자동미분법，사예측공제중태륵급수계산변성간단적수치운산。선택계통오차위이차형성능지표，병대성능지표화영자동보전궤수학모형진행태륵전개，파구해아극비구진문제전화위구해태륵급수적령민도。결합 Levenberg-Marquardt산법대영자동보전궤진행속도공제，운용덕사배사실시방진계통진행반실물방진실험험증。실험결과표명，소설계적공제기제고료계통로봉성，정개공제계통구유교호적동、정태특성。
This paper presents a new vector control,which overcomes drawbacks of the conventional AC servo system.The novel concept is based on predictive control and introduces the automatic differentiation method to make the calculation of the Taylor coefficients into a simple numerical calculation. The permanent magnet synchronous motor(PMSM) model and a quadratic performance index of the system error are expressed by the Taylor expansions.Then solving the Jacobian matrix is transformed into solving the sensitivity of the Taylor coefficients.Combined with the Levenberg-Marquardt algorithm,the concept has been developed by a new speed controller of PMSM.Results of dSPACE real-time simulation show that the designed controller improves the system robustness,and has good dynamic and static characteristics.