Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1994.07a
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- Pages.588-590
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- 1994
Field Weakening Control of IPMSM for High Speed Operation
영구자석 동기전동기의 약계자제어에 의한 고속 운전
- Yoon, Byung-Do (Dept, of Electrical Eng., Chung-Ang Univ.) ;
- Kim, Yoon-Ho (Dept, of Electrical Eng., Chung-Ang Univ.) ;
- Kim, Choon-Sam (Dept. of Control & Instrumentation Eng., Sam-Chuk polytec. Univ.) ;
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Lee, Byung-Song
(Dept, of Electrical Eng., Chung-Ang Univ.) ;
- Kim, Soo-Yeol (Dept, of Electrical Eng., Chung-Ang Univ.)
- Published : 1994.07.21
Abstract
This paper describes current controlled PWM technique of IPM synchronous motors for a wide variety of speed control applications. The IPM synchronous motors have a saliency, in which the q-axis inductance is larger than the d-axis inductance. As a consequence, there exists a reluctance torque component Thus when this component is added to the torque component produced by the stator currents and the air-gap flux, IPM motor drives are readily applicable where full torque Is required up to full or base speed. They are however limited in their ability to operate in the power limited regime where the available torque is reduced as the speed is increased above its base value. This paper reviews the operation of the IPMSM drives when they are constrained to be within the permissible envelope of maximum inverter voltage and current to produce the rated power and to provide this with the highest attainable rotor speed. The wide variety of speed control strategy is analyzed and the performance is investigated by the computer simulation using actual parameters of a drive system. Simulation results are given and discussed.
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