同步磁阻馬達驅動系統之開發及其無位置感測控制研究

本論文旨在研製以數位訊號處理器為主之同步磁阻馬達驅動系統與其無位置感測控制研究。首先，探究一些同步磁阻馬達之關鍵事務，包含馬達結構、主導方程式、參數估測、轉子位置偵測、以及換相時刻移位等。接著建構標準同步磁阻馬達驅動系統，並評估其性能。藉由所提適應換相機制獲得良好之驅控性能。換相角考慮馬達鐵損以及磁飽和現象自動設定以得最大效率，亦即最大之單位電流產生轉矩。此外，提出一弱磁換相法，提升馬達在高速區之運轉特性。接著，開發連網之同步磁阻達驅動系統，市電由所建構之三相六開關四象限切換式整流器供應馬達驅動器系統。所建立可升壓與良好調控之直流鏈電壓，可提升馬達驅動系統之性能，並具有良好之入電電力品質。而再生煞車之能量亦可有效地回送電網。最後，本論文開發不同高頻訊號注入之無位置感測同步磁阻驅動系統，並進行比較性能評估。首先建構一以弦波高頻訊號注入之馬達驅動系統，提出考慮馬達槽齒效應之具變化頻率高頻訊號注入機制，提升馬達於廣泛速度範圍下之驅控性能。接著，研製高頻方波注入之無位置感測同步磁阻馬達驅動系統。相較於前者，此法能達到較簡化之估測步驟，及較快速之響應。

關鍵字

同步磁阻馬達；切換式整流器；適應換相移位；最大效率；弱磁；再生煞車；無位置感測控制；高頻訊號注入

並列摘要

The thesis is mainly concerned with the development of a DSP-based synchronous reluctance motor (SynRM) drive and the exploration of its position sensorless control. First, some key affairs of a SynRM are explored, including motor structures, governing equations, parameter estimation, rotor position sensing and commutation instant setting, etc. Then, a standard SynRM drive is established and evaluated. Good driving performance is preserved thanks to the proposed adaptive commutation shift approach. Considering the effects of iron loss and magnetic saturation, the commutation angle is automatically set to pursue the maximum efficiency, and thus the maximum torque per ampere (MTPA). In addition, a field-weakening commutation method is also developed to enhance the motor operating characteristics in higher speed region. Second, the grid-connected SynRM drive is developed. A three-phase six-switch four-quadrant SMR is developed and used to power the motor drive from the mains. The boosted and well-regulated DC-link voltage is established to improve the motor driving performance with good line drawn power quality. Moreover, the regenerative braking with energy being recovered to the utility grid is successfully achieved. Third, the position sensorless controlled SynRM drives based on different high-frequency injected (HFI) signals are developed and comparatively assessed. The HFI sensorless drive using sinusoidal injected signal is first established. After exploring the slotted harmonic effects, the HFI scheme with changed frequencies is proposed to yield the improved driving performance in wide speed range. Next, the position sensorless control scheme of SynRM using high-frequency square wave injection is developed. The simplified estimation procedure and faster speed response compared to the first one can be obtained.

並列關鍵字

Synchronous reluctance motor ； switch-mode rectifier ； adaptive commutation shift ； maximum efficiency ； field-weakening ； regenerative braking ； position sensorless control ； high-frequency signal injection

參考文獻

[1] T. A. Lipo, “Synchronous reluctance machine- A viable alternative for AC drive,” Electric Machine & Power System, vol. 19, no. 6, pp. 659-671, 1991.

[3] A. Vagati, “The synchronous reluctance solution: a new alternative in AC drives,” in Proc. IEEE IECON, 1994, vol. 1, pp. 1-13.

[4] B. K. Bose, Modern Power Electronics and AC Drives, New Jersey: Prentice Hall, Inc., 2002.

[5] H. Murakami, Y. Honda, H. Kiriyama, S. Morimoto and Y. Takeda, “The performance comparison of SPMSM, IPMSM and SynRM in use as air-conditioning compressor,” in Proc. IEEE IAS, 1999, vol. 2, pp. 840-845.

[6] S. M. de Pancorbo, G. Ugalde, J. Poza and A. Egea, “Comparative study between induction motor and synchronous reluctance motor for electrical railway traction applications,” in Proc. IEEE EDPC, 2015, pp. 1-5.

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同步磁阻馬達驅動系統之開發及其無位置感測控制研究

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