增加延時補償的永磁同步電機電流預測控制
裴進
（華電湖北發電有限公司黃石熱電分公司，湖北 黃石 435000）
摘 要：電流預測控制是交流電機控制領域廣泛應用的一種優化控制方法。從永磁同步電機在同步旋轉坐標系中的數學模型出發，描述了離散化的電流預測控制方法來提高電機控制系統電流環的性能。針對控制延時導致定子電流在參考值附近振蕩并增加電流紋波和轉矩脈動的問題，采用一拍延時補償提高了控制系統的性能，仿真驗證了所描述方法的有效性和可行性。
關鍵詞：永磁同步電機；電流控制；預測控制；一拍延時補償
中圖分類號：TM351 文獻標識碼：A 文章編號：1007-3175(2019)05-0023-04
Predictive Current Control of Permanent Magnet Synchronous Motor with Delay Compensation
PEI Jin
（Huadian Hubei Power Generation Co., Ltd, Huangshi Thermal Power Branch, Huangshi 435000, China）
Abstract: The predictive current control is a kind of optimal control method extensively applied in the area of AC motor control field. Starting from the mathematical model of permanent magnet synchronous motor in synchronous rotating coordinate system, this paper described the discretized predictive current control method to improve the performance of motor control system current loop. In allusion to the problem that the control delay will lead to the current vibration nearby the reference value and the increase of current ripple and torque pulsation, One step delay compensation was adopted to improve the performance of control system. The simulation verifies the effectiveness and feasibility of the method described above.
Key words: permanent magnet synchronous motor; current control; predictive control; one step delay compensation
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