전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2005년도 전력전자학술대회 논문집
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- Pages.215-219
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- 2005
미지입력 관측기를 이용한 BLDC 전동기 센서리스 드라이브에 대한 연구
Sensorless Drive of Brushless DC Motors Using an Unknown Input Observer
- Kim, Tae-Sung (Hanyang University) ;
- Ryu, Ji-Su (Hanyang University) ;
- Hyun, Dong-Seok (Hanyang University)
- 발행 : 2005.07.04
초록
In this paper, a novel motor control method is proposed to improve the performance of sensorless drive of BLDC motors. The unknown input (back-EMF) is modelled as the additional state of system in this paper. Taking into account the disturbance adopted by the back-EMF, the observer can be obtained by the augmented system equation. An algorithm to detect the back-EMF of the BLDC motor using the state observer is constructed. As a result, the novel sensorless drive of BLDC motors that can strictly estimate rotor position and speed is proposed.
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