Modeling, Analysis and LQR Control of an EV Differential using IPMSM
DOI:
https://doi.org/10.37591/joci.v7i2.1970Abstract
Recently, the mechanical differential (MD) of vehicle has been replaced by electronic differential (ED) by means of electric motor. Electronic differential ensures dynamic and robust control of the vehicle behavior. The ED has been designed for an electrical vehicle (EV) based on IPMSM due to its some inherent advantageous features. The design of speed controller of an IPMSM mainly depends on its mathematical model. The mathematical model based speed controller has been developed without consideration of core loss. Practically, the performance of torque control is affected by the core loss. Hence, the core loss during the design of a control system should be considered to obtain precise torque as well as speed performance. Conventionally, the speed control strategy of IPMSM has been designed based on PI controller. The design and implementation procedure of PI controller are easier and the gains of it’s have been chosen by trial and error method. But, the overshoot and steady-state error cannot be minimized and the controller is not robust under the variation of load disturbance. In this paper linear quadratic regulator (LQR) based speed control of IPMSM is designed and analysis to apply in ED of an EV. The overall system has been demonstrated by simulation studies which are performed by Matlab/Simulink software. The simulation results show that the tracking of reference speed of IPMSM including core loss is achievable without any overshoot and steady-state error by the proposed designed LQR based optimal speed control scheme. Moreover, the designed controller is robust under the variation of load torque.
Keywords: Electronic differential, steering angle, slope angle, linear quadratic regulator, interior permanent magnet synchronous motor
Cite this Article
Sumon Kumar Ghos, Mohammad Abdul Mannan. Modeling, Analysis and LQR Control of an EV Differential using IPMSM. Journal of Control & Instrumentation. 2016; 7(2): 23–34p.
Downloads
Published
Issue
Section
License
Journal Title:
Title of the Paper:
Corresponding Author’s Information:
Name: Address:
E-mail:
Contact Number:
It is herein agreed that: The copyright to the above-listed unpublished and original article is transferred to STM Journals.
This copyright transfer covers the exclusive right to reproduce and distribute the contribution, including reprints, translations, photographic reproductions, microform, electronic form (offline, online), or any other reproductions of similar nature.
I/We declare that above manuscript is not published already in part or whole (except in the form of abstract) in any journal or magazine for private or public circulation, and, is not under consideration of publication elsewhere.
I/ We warrant(s) that his/her/their contribution is original, except for such excerpts from copyrighted works as may be included with the permission of the copyright holder and author thereof, that it contains no libelous statements, and does not infringe on any copyright, trademark, patent, statutory right, or propriety right of others.
I/We will not publish his/her/their above said contribution anywhere else without the prior written permission of the publisher unless it has been changed substantially. I/We also agree to the authorship of the article in the following order: Author(s) Name Signature(s)
1. ________________
2. ________________
3. ________________
4. ________________
The author(s) agree to the terms of this Copyright Notice, which will apply to this submission if and when it is published by this journal (comments if any to the editor can be added below).
