本論文旨在開發不同切換式整流器前級供電之開關式磁阻馬達驅動系統，並提出其無位置感測控制機構。在探討開關式磁阻馬達之基礎及一些相關電力電子技術後，建構一標準型開關式磁阻馬達驅動系統，藉由適當之移位、電流與速度控制，獲得良好之加/減速、反轉、動態響應等特性。在高速運轉情況下，應用直流鏈升壓降低反電動勢對電流追控之影響。接著提出窄波電壓注入之無位置感測控制機構，並以之建構無位置感測開關式磁阻馬達驅動系統。窄波電壓注入機構、響應電流偵測及信號處理機構均妥以設計，以得可媲美於標準型開關式磁阻馬達驅動系統之驅控性能。
　　接著開發一標準三相全橋式升壓型切換式整流器，作為馬達驅動系統之前級轉換器。在良好交流入電電力品質下，具可升壓直流鏈電壓以增強馬達系統於高速驅控特性，而再生煞車回收能量可成功送回市電。
　　最後，本論文建構一主動功率濾波器輔助之三相單開關升壓式不連續電流切換式整流器，作為馬達驅動系統之前級轉換器，具有標準三相全橋式升壓切換式整流器供電驅動系統之完全功能，然此型前級轉換器具有較高之功率元件額定利用率。

　　This thesis develops the switched-reluctance motor (SRM) drives with different switch-mode rectifier (SMR) front-ends and proposes a SRM position sensorless control scheme. After comprehending the basics of a SRM drive and some related power electronic technologies, a standard SRM drive is first established. Through proper commutation, current and speed controls, it possesses good driving performances, including acceleration/deceleration, reversible and regenerative braking operations. Under higher speeds, the DC-link boosting is further applied to reduce the effects of back electromotive force (EMF) on the winding current response. Next, a rotor position estimation scheme based on narrow pulse voltage injection is developed and applied for constructing a position sensorless SRM drive. The pulse voltage injection scheme, the resulted current detecting and signal conditioning schemes are all adequately designed to let its driving characteristics being comparable to those of standard SRM drive.
　　Second, a three-phase full-bridge boost switch-mode rectifier (SMR) is established to be the front-end of the SRM drive. Under good line drawn power quality, the DC-link voltage of the SRM drive is boostable to enhance the SRM driving performance in higher speeds. Moreover, the recovered regenerative braking energy can be successfully sent back to the mains.
　　Third, another SMR front-end SRM drive is proposed and comparatively evaluated. This AC/DC front-end consists of a three-phase single-switch (3P1SW) discontinuous conduction mode (DCM) boost SMR and a three-phase shunt active power filter (APF). All functions of the standard full-bridge SMR fed SRM drive are preserved by this type of SRM drive. However, the rating analysis demonstrates that the higher power device rating utilization is possessed.

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