The Efficiency Optimization of Permanent Magnet Synchronous Machine DTC for Electric Vehicles Applications Based on Loss Model

DOI

10.2991/ipemec-15.2015.14How to use a DOI?

Keywords

Permanent Magnet Synchronous Machine; Direct Torque Control; Loss Model; Iron Loss Resistance; Efficiency Optimization

Abstract

An efficiency optimization method of permanent magnet synchronous machine for electric vehicles applications is researched. Considering iron loss equivalent resistance and direct torque control scheme, the relationship of stator flux and power loss is derived based on loss model. And then the real-time optimal target flux can be obtained through the relationship of d-axis stator flux, target torque and electric speed at the minimum loss situation. A fitting curve of iron loss equivalent resistance versus speed is obtained by simulation. This makes the iron loss equivalent resistance closer to the actual value compared with the fixed value. Simulation results show that the motor efficiency has been improved compared with traditional direct torque control.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Like Zhao
AU  - Xiaomin Zhou
AU  - Dawei Gao
PY  - 2015/05
DA  - 2015/05
TI  - The Efficiency Optimization of Permanent Magnet Synchronous Machine DTC for Electric Vehicles Applications Based on Loss Model
BT  - Proceedings of the 2015 International Power, Electronics and Materials Engineering Conference
PB  - Atlantis Press
SP  - 70
EP  - 75
SN  - 2352-5401
UR  - https://doi.org/10.2991/ipemec-15.2015.14
DO  - 10.2991/ipemec-15.2015.14
ID  - Zhao2015/05
ER  -