基于同步旋轉(zhuǎn)坐標系下矢量旋轉(zhuǎn)的新型磁鏈算法
發(fā)布時間:2018-05-12 18:30
本文選題:磁鏈辨識 + 橢圓形旋轉(zhuǎn)磁場。 參考:《中國電機工程學報》2016年05期
【摘要】:傳統(tǒng)電壓型磁鏈算法在對電機內(nèi)普遍存在的橢圓形磁場磁鏈進行辨識時存在穩(wěn)態(tài)幅值相位誤差。為此文中提出兩種新型磁鏈算法,新算法基于反電動勢矢量與磁鏈矢量的關(guān)系得到。通過在同步旋轉(zhuǎn)坐標系下低通濾波消除積分漂移;通過旋轉(zhuǎn)矢量,實現(xiàn)積分作用。新算法結(jié)構(gòu)簡單,易于工程實現(xiàn)。仿真結(jié)果表明:新算法有效消除了積分漂移,算法1可以對圓形磁場磁鏈進行準確辨識;算法2可以對橢圓形磁場磁鏈進行準確的辨識;對于橢圓形磁場磁鏈,算法1辨識出其與電機轉(zhuǎn)向相同的圓形分量。將新算法應用于一臺表貼式永磁同步電機無位置傳感器調(diào)速系統(tǒng)的轉(zhuǎn)子位置估算,利用數(shù)字信號處理器TMS320F2812DSP對其進行了數(shù)字化實現(xiàn)。系統(tǒng)在穩(wěn)態(tài)與電機轉(zhuǎn)速突變時具有良好的靜態(tài)、動態(tài)特性,證明了新算法的有效性和實際可應用性。
[Abstract]:The traditional voltage type magnetic flux linkage algorithm has the steady-state amplitude phase error when identifying the elliptical magnetic flux linkage in the motor. In this paper, two new magnetic chain algorithms are proposed. The new algorithm is based on the relationship between the anti electromotive force vector and the magnetic chain vector. The new algorithm has simple structure and easy to implement. The simulation results show that the new algorithm effectively eliminates the integral drift. Algorithm 1 can identify the circular magnetic flux linkage accurately; algorithm 2 can identify the elliptical magnetic field magnetic chain accurately; for the elliptical magnetic field magnetic chain, the algorithm 1 identifies its electricity and electricity. The new algorithm is used for the same circular component. The new algorithm is applied to the rotor position estimation of a permanent magnet synchronous motor speed control system with a permanent magnet synchronous motor. The digital signal processor TMS320F2812DSP is used to digitize it. The system has good static and dynamic characteristics when the steady state and motor speed change, and the new calculation is proved. The validity of the method and the practical applicability of the method.
【作者單位】: 西安交通大學電氣工程學院;
【分類號】:TM301
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