CAJ | 학술논문

传统的参考磁链和估计磁链分别通过电机的电压模型和电流模型直接积分获得，但积分存在累计误差大和响应延时等缺点，使得磁链观测结果不够快速准确，导致转速辨识和系统调速性能不是很理想。为克服这一缺点，提出将线性预测控制与模型参考自适应相结合的转速辨识方法。预测控制原理简单，易于实现，通过简单的超前一个采样周期预测，即可实现参考磁链和估计磁链的无差拍控制。仿真结果表明，基于预测控制和模型参考自适应的转速辨识方法应用于矩阵变换器驱动感应电机具有较好的转速辨识和系统调速性能，克服了积分方法获得磁链信息存在的缺点。
전통적삼고자련화고계자련분별통과전궤적전압모형화전류모형직접적분획득，단적분존재루계오차대화향응연시등결점，사득자련관측결과불구쾌속준학，도치전속변식화계통조속성능불시흔이상。위극복저일결점，제출장선성예측공제여모형삼고자괄응상결합적전속변식방법。예측공제원리간단，역우실현，통과간단적초전일개채양주기예측，즉가실현삼고자련화고계자련적무차박공제。방진결과표명，기우예측공제화모형삼고자괄응적전속변식방법응용우구진변환기구동감응전궤구유교호적전속변식화계통조속성능，극복료적분방법획득자련신식존재적결점。
Traditional rotor flux information is obtained by using integral control based on voltage model and current model, which results in rotor flux with large error and low response speed, and low precision and low response speed of estimated speed. To avoid the defects of the rotor flux information obtained by integral controller, the estimated speed method with combining predictive control with model referenced adaptive system was put forward. The predictive control has advantages of simple principle and easy to re-alize, the deadbeat control of the referenced rotor flux and model rotor flux can be realized by simply pre-dicting ahead of one sample period. The simulated results indicate that the system not only has good per-formances of the estimated speed but also of speed regulation by using proposed estimated speed method when applying to indirect vector control of induction motor fed by matrix convert.