具三相切換式整流器前級切換式磁阻馬達驅動系統之開發

本論文旨在建構以數位訊號處理器為主具三相升壓切換式整流器前級之切換式磁阻馬達驅動系統，並對馬達驅動系統具不同電流控制脈寬調變機構及切換式整流器架構進行實測性能比較評估。首先，在探究磁阻馬達之基本實務及關鍵技術後，建構一以修正型米勒轉換器供電之切換式磁阻馬達驅動系統。在採行斜率比較電流控制脈寬調變及磁滯比較電流控制脈寬調變下比較評估其操作特性，含電流波形、振動及速度紋波等。此外，亦觀察使用隨機切換及換相前移之馬達操控特徵。接著，在切換整流器之開發方面，首先設計需實現一個三相單開關升壓型切換式整流器，其操作在不連續導通模式而無電流控制，可獲得提升之直流輸出電壓及良好之交流入電電力品質。接著應用零電流轉移軟式切換技術以避免主開關因硬式切換具有之缺點。另外亦提出一個三相無橋式切換式整流器以提升標準三相單開關切換式整流器之效率。最後，組立具三種三相切換式整流器前級之切換式磁阻馬達驅動系統，並以實測結果比較評估其驅動特性。

關鍵字

切換式磁阻馬達；切換式整流器；公率因數校正；軟式切換

並列摘要

This thesis is mainly concerned with the establishment of a digital signal processor (DSP) based switched-reluctance motor (SRM) drive with three-phase boost switch-mode rectifier (SMR) front-end. And the experimental evaluation is made for different motor drive current-controlled PWM schemes and SMR schematics. First, after comprehending the basics and key issues of SRM, an experimental SRM drive equipped with modified Miller’s is established. The operating characteristics of motor drive using ramp comparison current-controlled pulse width modulated (RC-CCPWM) and hysteresis current-controlled pulse width modulated (H-CCPWM) schemes are comparatively evaluated in current, vibration and speed ripple. The features of applying random switching and commutation instant advanced shift are also observed. Next, a three-phase single-switch (3P1SW) boost switch-mode rectifier is first designed and implemented. It is operated under discontinuous conduction mode (DCM) without current-mode control. The boostable DC output voltage with satisfactory line drawn power quality can be obtained. Then the zero-current transition (ZCT) soft- switching control is applied to avoid the hard-switching disadvantages possessed by its main switch. Moreover, a bridgeless DCM three-phase SMR is proposed to enhance the efficiency of the standard 3P1SW DCM SMR. Finally, the SRM drives powered by the designed three types of front-end SMRs are established, and their driving performances are compared experimentally.

並列關鍵字

switched-reluctance motor ； switch-mode rectifier ； power factor correction ； soft-switching

參考文獻

A. Switch-Reluctance Motors

[1] T. J. E. Miller, Switched Reluctance Motors and Their Control, Oxford, Clarendon Press, 1993.

[3] H. C. Lovatt, M. C. Clelland and J. M. Stephenson, “Comparative performance of singly salient reluctance, switched reluctance and induction motors,” in Proc. IEE Conf. Elect. Mach. and Drives, 1997, pp. 361-365.

[4] M. Zeraoulia, M. E. H. Benbouzid and D. Diallo, “Electric motor drive selection issues for HEV propulsion systems: a comparative study,” IEEE Trans. Veh. Technol., vol. 55, no. 6, pp. 1756-1764, 2006.

[5] M. Cacciato, A. Consoli, G. Scarcella and G. Scelba, “A switched reluctance motor drive for home appliances with high power factor capability,” in Proc. IEEE PESC, 2008, pp. 1235-1241.

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具三相切換式整流器前級切換式磁阻馬達驅動系統之開發

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