以三相功率模組建構具升壓及功因校正充電能力切換式磁阻馬達驅動系統之開發

Developmoent of a switched reluctance motor drive with voltage boosting and PFC charging capabilities using three-phase power modules

林閔洲(Ming-Jhou Lin)

指導教授 ： 廖聰明

國立清華大學/電機資訊學院/電機工程學系/碩士(2008年)

摘要

本論文旨在開發一以三相功率模組建構之具升壓及功因校正充電功能之蓄電池供電切換式磁阻馬達驅動系統，並從事其控制。首先建構所提之馬達驅動系統，其所用修正型米勒(Miller)轉換器係以兩個三相智慧型功率模組中之五個臂之功率開關構成。而藉由適當之換相調控及速度控制機構設計，所建馬達驅動系統可正常運轉且具有良好之操控特性。此有利於總體馬達驅動功率級之簡化與小型化。
接著本論文從事所建馬達驅動系統之升壓及功因校正充電研究。於此將二個三相功率模組中剩餘之一個臂功率開關安排形成一個兩象限直流-直流前端轉換器，將其安置於蓄電池與馬達驅動系統轉換器間。在馬達驅動模式，前級轉換器操作為升壓型直流-直流轉換器，以建立良好調控與可提升之直流鏈電壓供給馬達驅動級，增進高速運轉性能。於充電模式，將馬達線圈與功率模組中之開關妥善安排組接形成一個三相單開關切換式整流器，而前級轉換器操作為降壓型直流-直流轉換器，綜合兩功率級組成升-降壓型功因校正充電器。並藉由適當之切換及動態控制以得具有優良交流入電電力品質之充電控制。本論文詳細介紹所建馬達驅動系統必要控制機構之設計與實現，並以一些模擬及實測結果顯示其正常操控與驅控性能。

關鍵字

切換式磁阻馬達 ； 智慧型功率模組 ； 前端轉換器 ； 兩象限 ； 升壓 ； 速度控制 ； 模式追蹤控制器 ； 切換式整流器 ； 功因校正 ； 充電器

並列摘要

This thesis presents the development and control of a battery powered switched reluctance motor (SRM) drive using two three-phase power modules having the voltage boosting and PFC charging capabilities. First, the SRM drive with its modified Miller converter being constructed using five legs in two three-phase intelligent power modules (IPM) are designed and implemented. The whole SRM drive power stage can be simplified and miniaturized, and it can be normally operated with satisfactory performance through the properly designed commutation and speed control schemes.
Then the voltage boosting and PFC charging for the developed SRM drive are studied. The remaining one leg of the IPM is arranged to form a two-quadrant front DC-DC converter located between the battery and the SRM converter. In motor driving mode, the front-end converter is operated in DC-DC boost converter to establish well-regulated and boostable DC link voltage for the followed SRM drive. Significant performance enhancement in higher speed can be achieved. In idle charging mode, the SRM windings and the two IPMs are arranged to form a three-phase single-switch (3P1SW) switch-mode rectifier (SMR). And the front-end converter is operated as a buck type DC-DC converter. The boost-buck PFC charger is then constructed by the 3P1SW SMR and the buck converter. The battery charging control with rather good line drawn power quality can be achieved via proper switching and dynamic controls. The design and realization of the necessary control schemes in the established motor drive system are presented. And its normal operations and driving performances are verified by some simulated and experimental results.

並列關鍵字

Switched-reluctance motor ； intelligent power module ； front-end converter ； two-quadrant ； voltage boosting ； speed control ； model following control ； switch-mode rectifier ； power factor correction ； charger

參考文獻

[1] T. J. E. Miller, Switched reluctance motors and their control, Clarendon Press, Oxford, 1993.

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[4] 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.

[5] P. Rafajdus, V. Hrabovcova and P. Hudak, “Investigation of losses and efficiency in switched reluctance motor,” in Proc. EPE-PEMC, 2006, pp. 296-301.

[6] A. V. Radun, “Design considerations for the switched reluctance motor,” IEEE Trans. Ind. Appl., vol. 31, no. 5, pp. 1079-1087, 1995.