CAJ | 학술논문

传统的反电势转子超导永磁电机模型在对电流导数运算时需要进行偏微分计算，导致系统高频噪声扩大，产生电流畸变。利用转子磁场坐标系的高频抑制性能，提出一种改进的转子超导永磁电机模型，新模型在转子磁场坐标系中利用仿射变换方法替代传统的微分运算计算电流矢量导数，对高频噪声能有效抑制，在传统的反电势电机模型上增加一个跟踪误差补偿项，补偿电流畸变不确定性。设计出转子磁场坐标下的超导永磁电机预测控制系统模型结构。仿真实验表明，改进模型能有效对电机模型的电流畸变进行抑制，降低转矩波动，电流控制误差降低50%，电流轨迹波动呈现规则圆形，改进方法能有效地将电流畸变控制在理想范围之内。
전통적반전세전자초도영자전궤모형재대전류도수운산시수요진행편미분계산，도치계통고빈조성확대，산생전류기변。이용전자자장좌표계적고빈억제성능，제출일충개진적전자초도영자전궤모형，신모형재전자자장좌표계중이용방사변환방법체대전통적미분운산계산전류시량도수，대고빈조성능유효억제，재전통적반전세전궤모형상증가일개근종오차보상항，보상전류기변불학정성。설계출전자자장좌표하적초도영자전궤예측공제계통모형결구。방진실험표명，개진모형능유효대전궤모형적전류기변진행억제，강저전구파동，전류공제오차강저50%，전류궤적파동정현규칙원형，개진방법능유효지장전류기변공제재이상범위지내。
Using the high frequency suppression performance of the rotor coordinate system, an improved superconducting permanent magnet motor model was proposed, the affine transformation method was used to replace the traditional differen-tial operation derivative calculation for current vector. The high frequency noise was suppressed, and the tracking error compensation in the back EMF about the traditional model was added to compensate the current distortion uncertainty, the control system model structure and the control prediction algorithm was designed in the magnetic field coordinates for the permanent magnet motor. Simulation result shows that the improved model can suppress the current distortion effectively, and reduce the torque ripple, and the current control error is reduced by 50%, the current track volatility rules round. It can control the current distortion in the ideal range effectively.