모델 예측 제어 기법을 이용한 3-레벨 인버터로 구동되는 영구자석 동기 전동기의 토크 리플 저감 기법
A Torque Ripple Reduction Method of a Permanent Magnet Synchronous Motor Driven by a Three-Level Inverter Using a Model Predictive Control
- 발행기관 아주대학교
- 지도교수 이교범
- 발행년도 2014
- 학위수여년월 2014. 8
- 학위명 석사
- 학과 및 전공 일반대학원 전자공학과
- 실제URI http://www.dcollection.net/handler/ajou/000000017398
- 본문언어 영어
- 저작권 아주대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
This paper proposes a model predictive control (MPC) method that applies the space vector modulation (SVM) technique to a permanent magnet synchronous motor (PMSM) driven by a three-level neutral-point-clamped (NPC) inverter. The MPC method selects the optimized voltage vector for the inverter control using the predictive modeling equation of the PMSM and cost function. However, since the conventional MPC method uses the limited voltage vector to control the inverter, large torque ripple is generated. The proposed algorithm performs the torque ripple reduction by synthesizing voltage vectors of various magnitudes, selecting optimal voltage vectors through the cost function implementation, and switching with space vector modulation (SVM). The proposed control method is validated through the simulation and experimental results.
more목차
I. INTRODUCTION 1
II. THREE-LEVEL NPC INVERTER 4
A. Structure 4
B. Reference Frame Transformation 6
C. SVM Technique 7
III. PROPOSED MPC-SVM 9
A. Predictive Modeling of PMSM 9
B. Cost Function 10
C. Synthesis of Reference Voltage Vectors 10
D. MPC-SVM 14
IV. SIMULATION 15
V. EXPERIMENTAL RESULTS 19
VI. CONCLUSION 25
REFERENCES 26
