편측식 유도형 리니어 모터의 등가회로에 관한 연구

Abstract

전기기계의 등가회로는 전기기계를 설계하거나 ??성을 해석하는데 대단히 편리한 도구이다. SLIM는 회전형 유도 전동기와 같은 등가회로를 사용할 수 있다. 그런데 SLIM의 등가회로 정수를 얻기 위한 수단으로, 실험실에서 무부하시험에 필요한 동기속도를 얻는 것은 매우 어렵다. 본 연구에서는 구속시험, 등가 무부하시험 및 해석적인 결과로부터 무부하시험을 하지 않고도 고정도의 SLIM의 등가회로 정수를 산정하는 방법을 제시하였다. 기동 시의 전기적 특성 비교에서 이론치에 의한 결과보다 제안된 방법에 의한 결과가 실험치에 매우 근접함을 알 수 있었다.

The equivalent circuit for electric machinery is a very convenient tool to design and analyze electric machines. The equivalent circuit of single-sided linear induction motor(SLIM) is generally expressed as the same that of rotary induction motor. However, to obtain parameters of equivalent circuit of SLIM, it is very difficult to drive SLIM at synchronous speed for no-load test in a laboratory. A method is proposed to compute accurate parameters of equivalent circuit of SLIM by blocked-mover test, equivalent no-load test, and analytical results without no-load test. It is found that results from proposed method are more accurate than that of analytical method by comparing electrical characteristics at start with those obtained from tests.

The equivalent circuit for electric machinery is a very convenient tool to design and analyze electric machines. The equivalent circuit of single-sided linear induction motor(SLIM) is generally expressed as the same that of rotary induction motor. However, to obtain parameters of equivalent circuit of SLIM, it is very difficult to drive SLIM at synchronous speed for no-load test in a laboratory. A method is proposed to compute accurate parameters of equivalent circuit of SLIM by blocked-mover test, equivalent no-load test, and analytical results without no-load test. It is found that results from proposed method are more accurate than that of analytical method by comparing electrical characteristics at start with those obtained from tests.