摘要
文章提出了一种适用于装备永磁同步电机纯电动汽车的最大转矩电流比控制方法,该方法以业内常规的查表法为基础,首先通过实验方式确定电机输出扭矩与D、Q轴电流的映射表格;在此基础上考虑电感饱和效应的影响,在Q轴电流增加到一定程度时,对Q轴电感进行补偿,进而得到新的输出扭矩与D、Q轴电流间的映射关系,并用其实施控制。该方法在保证控制实时性需求的前提下,提高了电机的控制性能。最后通过台架实验,验证了该方法的可行性与可靠性。
This paper presents a method of MTPA control for pure electric vehicles equipped with PMSM.This method is based on the conventional look-up table method.Firstly,the mapping table between the motor output and the D and Q axis current is determined experimentally;on this basis,the influence of the inductance saturation effect is considered.When the Q axis current increases to a certain range,the Q axis inductance is compensated,and then the mapping relationship between the new output variable and the D and Q axis currents is obtained,and the control is implemented with it.This method improves the control performance of the motor while ensuring the reduction of real-time control requirements.Finally,the actual vehicle experiment verified the feasibility and reliability of the method.
作者
李玮
刘超
梁海强
Li Wei;Liu Chao;Liang Haiqiang(Beijing Electric Vehicle CO.,Ltd.,Engineering Research Institute,Beijing 100176)
出处
《汽车实用技术》
2021年第9期1-3,19,共4页
Automobile Applied Technology
基金
科技部新能源汽车重点专项“高温车用SiC器件及系统的基础理论与评测方法研究”项目资助,编号:2016YFB 010060522017。
