AJOU Central Library Repository: 이중 인버터로 구동되는 개방 권선형 영구자석 동기 전동기의 이산 공간벡터 변조 방식 기반 예측 토크 제어 기법

Graduate School of Ajou University Department of Electronic Engineering 3. Theses(Master)

이중 인버터로 구동되는 개방 권선형 영구자석 동기 전동기의 이산 공간벡터 변조 방식 기반 예측 토크 제어 기법

Alternative Title: Predictive Torque Control Method based on Discrete Space Vector Modulation of Open-End Winding PMSM Fed by Dual Inverter

Alternative Abstract: This thesis presents a predictive torque control (PTC) method based on discrete space vector modulation (DSVM) of open-end winding permanent magnet synchronous motor (OEW-PMSM) fed by dual inverter. Since the conventional PTC (C-PTC) method uses only one switching state in sampling period, the torque and flux ripple are increased, leading to performance degradation of motor. In order to improve these disadvantages, this thesis proposed the PTC method on DSVM to select the optimal voltage vector by splitting the voltage vectors into the virtual voltage vectors. Furthermore, the deadbeat method based on estimation of reference voltage angle is utilized to reduce the calculation burden of microprocessor. Therefore, using the proposed method, the reference voltage with multi-level effect can be generated by the virtual voltage vectors, and it result in the reduction of torque and flux ripple. The effectiveness and feasibility of the proposed PTC method based on DSVM has been demonstrated through simulation and experimental results.

Appears in Collections:: Graduate School of Ajou University > Department of Electronic Engineering > 3. Theses(Master)

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