回轉子 쵸퍼로 制御되는 슬립·링 誘導電動機 閉루우프系의 試作 및 特性解析 = Implementation and Characteristics of Closed Loop Control System for Rotor Choppor Controlled Slip-Ring Induction Motor

국문 초록 (Abstract)

슬립·링 誘導電動機 回轉子側에 브리지整流回路, 휠터回路 및 改善된 쵸퍼回路를 연결하여 듀티比에 따른 슬립·링 誘導電動機의 速度制御特性을 向上시키고자 閉루우프 速度制御系를 設計, 試作한 硏究이다.
좀 더 양호한 速度變動率과 速應性을 갖도록 設計한 閉루우프制御系를 동작점 근방에서 小信號動搖모델로 전개하여 動的應答을 구한 이론결과는 실험결과와 잘 부합되었다.
그러므로 본 연구에서 제시한 理論解法은 얻고자 하는 應答特性을 갖도록 閉루우프 制御系를 設計, 解析하는데 유효하게 쓰여질 것으로 기대되며 比例積分器의 성능에 따라서는 速度變動率을 거의 없앨 수 있음을 알았다.

다국어 초록 (Multilingual Abstract)

This paper is designed and implemented to improve variable speed drive of slip-ring Induction motor(SRIM) with connecting bridge rectifier, developed chopper circuit and filter to the rotor side of SRIM.
The closed loop system is designed and implemented to obtain a better speed regulation and fast response. A small signal dynamic model is developed around the given steady-state operating point and its theoretical results are coincided with experimental results.
This small signal model for small purturbations of input signals is expected to be useful in designing a closed loop controller with predictable performance. The dynamic performance is very much improved with speed and current feedback and speed regulation can be almost zero with PI controllers.