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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 윤덕용
- 발행연도
- 2017
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This paper proposes the compensation methods of phase current errors in the vector-controlled inverter for a 3-phase induction motor. In the vector control, it is very important to control the phase currents of motor, which determine the control performance. The actual currents should be accurately measured because the current-control is carried out by feedback of the measured phase currents through the sensors.
Typically, the Hall current sensors are used for measurement of the phase currents. The measured current signals are able to include the offset errors and scaling errors by several components such as current sensors, analog amplifiers, noise filter circuits, and ADC. Therefore, the controlled- performance can be deteriorated by the current measurement errors.
This paper have analyzed the influence caused by the vector control of a 3-phase induction motor when two errors are contained in measured phase currents. From analyzed results, the compensation methods are proposed without an additional hardware. The proposed compensation methods are applied vector-controlled inverter for a 3-phase induction motor of 200[W] class and verified through computer simulations and experiments.
Typically, the Hall current sensors are used for measurement of the phase currents. The measured current signals are able to include the offset errors and scaling errors by several components such as current sensors, analog amplifiers, noise filter circuits, and ADC. Therefore, the controlled- performance can be deteriorated by the current measurement errors.
This paper have analyzed the influence caused by the vector control of a 3-phase induction motor when two errors are contained in measured phase currents. From analyzed results, the compensation methods are proposed without an additional hardware. The proposed compensation methods are applied vector-controlled inverter for a 3-phase induction motor of 200[W] class and verified through computer simulations and experiments.
목차
Ⅰ. 서 론 1Ⅱ. 3상 유도전동기의 모델링 및 벡터제어 41. 3상 유도전동기의 수학적 모델링 42. 3상 유도전동기의 벡터제어 16Ⅲ. 전류측정 오차의 영향 231. 오프셋 오차의 영향 232. 변환이득 오차의 영향 25Ⅳ. 전류측정 오차의 보상 방법 271. 오프셋 오차의 보상 방법 282. 변환이득 오차의 보상 방법 29Ⅴ. 시뮬레이션 및 실험 결과 351. 시뮬레이션 결과 352. 실험 결과 46Ⅵ. 결 론 57참고문헌 59Abstract 62감사의 글 64
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