|
标题：基于无速度传感器与效率优化的电动车用感应电机制动控制研究 |
|
作者：于海芳，高鹏，崔淑梅 |
|
| 2016年第7期 访问次数：309次 |
|
摘要：为增加电动汽车续驶里程，提高电机运行效率，研究电动车用感应电机制动控制策略，建立感应电机带定子铁损的数学模型，以直接转矩控制系统为框架，采用效率最优化与无速度传感器控制相结合的策略。利用Matlab/Simulink搭建了该控制策略模型。仿真结果表明所提控制策略在无速度传感器模型跟踪转子速度的同时，使感应电机效率达到最优控制，可提高电机运行效率。
关键词：无速度传感器；损耗模型；效率优化；最优磁链
Abstract: Focused on the vehicle braking control strategy, the mathematical model of the induction motor with a stator iron loss was built, which combined efficiency optimization with speed sensorless control as strategies to increase the driving range of electric vehicles. Based on Matlab/Simulink, a direct torque control system was adopted as framework and control strategy model with optimum efficiency of induction motor and speed sensorless control was provided. The simulation results show that electric vehicles can realize the motor process of tracking rotor speed and stator flux is maintained at the optimum flux run. Moreover the motor efficiency is increased from 75% to 84%. Therefore the driving range of electric vehicles increases.
Key words: speed sensorless control; loss model; optimum efficiency of induction motor; optimum flux
|
|
| |
|
