具降-升壓功因調控前級之切換式磁阻馬達驅動系統

A SWITCHED-RELUCTANCE MOTOR DRIVE WITH BUCK-BOOST POWER FACTOR CORRECTION FRONT-END

林彥亨(Yen-Heng 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(2009年)

https://doi.org/10.6843/NTHU.2009.00703

摘要

本論文旨在研製以數位訊號處理器為主具有降-升壓切換式整流器前級之切換式磁阻馬達驅動系統。首先，探究切換式磁阻馬達驅動系統之基本實務以瞭解其結構特徵、轉換器電路、驅動控制以及一些影響其性能之關鍵事務。其次，建構一具二極體整流器前級之切換式磁阻馬達驅動系統，利用兩個市售之三相智慧型功率模組組成切換式磁阻馬達之非對稱橋式轉換器。藉由適當設計之換相時刻移位、電流控制以及速度控制機構，所組建之馬達驅動系統具有良好之操控性能。
接著在電力品質控制方面，應用降-升壓切換式整流器前級建立由交流源入電建立平穩及可升壓之直流鏈電壓。由於此類切換式整流器固有之電壓轉換特性，藉由適當之控制設計可得良好之直流電壓輸出及交流入電電力品質，因而獲得更優越之切換式磁阻馬達線圈電流與速度響應特性。為促使控制機構之小型化，兩級電力電路之數位控制法則以一共同之數位訊號處理器實驗之。最後，本論文從事所建具切換式整流器前級切換式磁阻馬達驅動系統之總體操控效能實測評定，包含換相前移效應、直流鏈電壓升壓、直流鏈電壓調控及交流入電品質等。

關鍵字

切換式磁阻馬達 ； 智慧型功率模組 ； 前級轉換器 ； 降-升壓轉換器 ； 升壓 ； 切換式整流器 ； 功因校正 ； 電流控制 ； 速度控制 ； 數位訊號處理器 ； 數位控制

並列摘要

A digital signal processor (DSP) based switched-reluctance motor (SRM) drive with buck-boost switch-mode rectifier (SMR) front-end is designed and implemented in this thesis. First, the basic issues of a SRM drive are explored to comprehend its structural features, converter circuits, driving control, and some key affairs affecting its performance. Then a standard diode rectifier-fed SRM drive is established. Two off-the-shelf three-phase intelligent power modules (IPMs) are employed to construct the SRM asymmetric bridge converter. Satisfactory driving performance is yielded by properly designing its commutation, current control and speed control schemes.
Next in power quality control, a buck-boost SMR is used as a front-end for establishing well-regulated and boostable DC-link voltage for the SRM drive from utility grid. Owing to the inherent voltage transfer feasibility possessed by this type of SMR, good DC output voltage and AC input power quality control performances are obtained via proper control scheme design. It follows that the improved SRM winding current and speed responses are yielded accordingly. For achieving the miniaturization of control environment, the control algorithms of two power stages are digitally realized using a common DSP. Finally, the performance evaluation for the whole SMR-fed SRM drive is conducted experimentally. The evaluated characteristics include the effects of commutation advanced shift, the DC-link voltage boosting, the DC-link voltage regulation control, and the AC line drawn power quality.

並列關鍵字

Switched-reluctance motor ； intelligent power module ； front-end converter ； buck-boost converter ； oltage boosting ； switch-mode rectifier ； power factor correction ； current control ； speed control ； DSP ； digital control

參考文獻

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