單相交流截波器應用於感應馬達之研究

Research of Single-Phase AC Choppers for Induction Motors

呂育政(Yu-Cheng Lu)

指導教授 ： 陳裕愷

國立虎尾科技大學/工程學院/航空與電子科技研究所/碩士(2011年)

https://doi.org/10.6827/NFU.2011.00115

摘要

本論文主要研製單相交流截波器應用於單相感應馬達的調速控制器。單相感應馬達調速控制器大多為變頻器，但由於成本高及設計複雜，以至於使用在控制低馬力的單相感應馬達顯得較為浪費，而傳統風扇控制方法，雖有高效率、成本低之優點，但有調速解析度不高與馬達通用性的缺點。因此本文以無段調速、低成本、馬達通用性之方向研製兩種單相交流截波器，使用微控制器做為系統控制核心，以開迴路的方式做調速控制，在調速方面採用脈波寬度調變改變馬達輸入電壓來控制轉速變化。其中一組是使用兩組脈波寬度調變配合休眠時間做控制，另一組是使用一組脈波寬度調變配合變壓器耦合做控制。最後以模擬與硬體製作測試結果，驗證本論文所提系統之正確性與可行性。

關鍵字

交流截波器 ； 感應馬達 ； 脈波寬度調變

並列摘要

This thesis presents the design and implementation of AC choppers for induction motor systems. The variable-frequency inverter is widely used to control the rotational speed of induction motor. However, the variable -frequency drive is high cost and complex to match the system demand. To control the motor speed, the AC choppers are proposed and implemented with pulse-width-modulation control using micro-controllers. There are two circuits presented in this thesis. One is designed using two driving circuits and dead-time control, and the other is designed with one driving circuit and driving transformer. From the cost competitive advantage we can see that, the proposed two AC choppers are better than the variable-frequency inverter system. Finally, the measured results from the prototypes have confirmed the effectiveness and feasibility of the proposed methods.

並列關鍵字

AC Chopper ； Induction Motor ； PWM

參考文獻

[9] Polmai S. and Sugprajun E.,“Experiment on Instantaneous Value Voltage Control of a Single-Phase AC Chopper,”India International Conference on, Power Electronics, 2006, pp. 77 - 82.

[10] H.-A. Ashour,“A new electronic step-up/down voltage A new electronic step-up/down voltage chopper,”International Middle-East. Power System Conference, 12th., March. 2008, pp. 600 – 604.

[12] Ahmed N.A., Amei K. and Sakui M.,“A New Configuration of Single-Phase Symmetrical PWM AC Chopper Voltage Controller”, IEEE Transactions on, dustrial Electronics, Oct 1999, Vol 46, pp. 942-952.

[13] Zhang Jie, Zou Yunping, Yu Weifu, Lin Lei and Li fen,“Research on AC Chopper Power Module with Module Parallel Control”, Twenty-Third Annual IEEE, Applied Power Electronics Conference and Exposition, 2008, pp. 1324-1327.

[14] Ahmed N.A., Amei K. and Sakui M.,“A New Configuration of Single-Phase Symmetrical PWM AC Chopper Voltage Controller, ”IEEE Transactions on, Industrial Electronics, Vol. 46, 1999, pp. 942-952.