전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2001년도 추계학술대회 논문집
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- Pages.7-10
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- 2001
유도전동기 자속추정기의 특성해석
Analysis of Induction Machine Flux Observer
- Nam Hyun-Taek (Kyungpook Nat'l. Univ.) ;
- Lee Kyung-Joo (Kyungpook Nat'l. Univ.) ;
- Choi Jong-Woo (Kyungpook Nat'l. Univ.) ;
- Kim Heung-Geun (Kyungpook Nat'l Univ.)
- 발행 : 2001.12.01
초록
To obtain a high performance in a direct vector controlled induction machine, it is essential to correct estimation of rotor flux. The accuracy of flux observers for induction machines inherently depends on parameter sensitivity. This paper presents an analysis method for conventional flux observers using Parameter Sensitivity. The Parameter sensitivity is defined as the ratio of the percentage change in the system transfer function to the percentage change of the parameter variation. We define the ratio between real flux and estimated flux as the transfer function, and analyzed a parameter sensitivity of this transfer function.
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