지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수
이 논문의 연구 히스토리 (3)
2013
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초록· 키워드
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This paper proposes an improved stator flux estimator through ensuring conventional PLPF to act as a pure integrator for sensorless control of induction motors. Conventional PLPF uses the estimated synchronous speed as a cut-off frequency and has the gain and phase compensators. The gain and phase compensators are determined on the assumption that the estimated synchronous angular speed is coincident with the real speed. Therefore, if the synchronous angular speed is not same as the real speed, the gain and phase compensation will not be appropriate. To overcome the problem of conventional PLPF, this paper analyzes the relationship between the synchronous speed error and the phase lag error of the stator flux. Based on the analysis, this paper proposes the synchronous speed error compensation scheme. To achieve a start-up without speed sensor, the current model is used as the stator flux estimator at the standstill. When the motor starts up, the current model should be switched into the voltage model. So a stable transition between the voltage model and the current model is required. This paper proposes the simple transition method which determines the initial values of the voltage model and the current model at the transition moment. The validity of the proposed schemes is proved through the simulation results and the experimental results.
목차
Abstract
1. 서론
2. 기존의 PLPF를 이용한 전압 모델
3. 각속도 오차 보상기를 갖는 제안된 PLPF
4. 모델 간 전환 시 초기 값 결정 방법
5. 시뮬레이션
6. 실험
7. 결론
References
참고문헌 (9)
참고문헌 신청
1. [학술지(정기간행물)] - M. H. Shin / 2000 / An improved stator flux estimation for speed sensorless stator flux orientation control of induction motors / IEEE Transactions. on Power Electronics 15 (2) : 312 ~ 318
2. [학술대회논문] - Z. Xing / 2006 / A new integrator for voltage model flux estimation in a digital DTC system / In TENCON 2006. 2006 IEEE Region 10 Conference : 1 ~ 4
3. [학술지(정기간행물)] - M. Hinkkanen / 2003 / Modified integrator for voltage model flux estimation of induction motors / IEEE Transactions. on Industrial Electronics 50 (4) : 818 ~ 820
4. [학술지(정기간행물)] - M. Comanescu / 2006 / An improved flux observer based on PLL frequency estimator for sensorless vector control of induction motors / IEEE Transactions. on Industrial Electronics 53 (1) : 50 ~ 56
5. [학술지(정기간행물)] - J. Hu / 1998 / New integration algorithms for estimating motor flux over a wide speed range / IEEE Transactions. on Power Electronics 13 (5) : 969 ~ 977
2. [학술대회논문] - Z. Xing / 2006 / A new integrator for voltage model flux estimation in a digital DTC system / In TENCON 2006. 2006 IEEE Region 10 Conference : 1 ~ 4
3. [학술지(정기간행물)] - M. Hinkkanen / 2003 / Modified integrator for voltage model flux estimation of induction motors / IEEE Transactions. on Industrial Electronics 50 (4) : 818 ~ 820
4. [학술지(정기간행물)] - M. Comanescu / 2006 / An improved flux observer based on PLL frequency estimator for sensorless vector control of induction motors / IEEE Transactions. on Industrial Electronics 53 (1) : 50 ~ 56
5. [학술지(정기간행물)] - J. Hu / 1998 / New integration algorithms for estimating motor flux over a wide speed range / IEEE Transactions. on Power Electronics 13 (5) : 969 ~ 977
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UCI(KEPA) : I410-ECN-0101-2014-500-002500985