考虑饱和特性的电动汽车双向变换器控制策略  

Control Strategy of Electric Vehicle Bidirectional Converter Considering Saturation Characteristics

作　　者：张振波 王海云[1,2] 王维庆[1,2] ZHANG Zhen-bo;WANG Hai-yun;WANG Wei-qing(Electrical Engineering College, Xinjiang University, Urumqi 830047, China;Engineering Research Center for Renewable Energy Generation and Grid Control, Urumqi 830047, China)

机构地区：[1]新疆大学电气工程学院,乌鲁木齐830047 [2]教育部可再生能源发电与并网控制工程技术研究中心,乌鲁木齐830047

出　　处：《科学技术与工程》2022年第2期577-584,共8页Science Technology and Engineering

基　　金：新疆维吾尔自治区重点研发计划(2020B02001);新疆维吾尔自治区高校重大项目(XJEDU2017I002)。

摘　　要：随着电动汽车日益普及,充放电流越来越大,传统的电感解耦控制在大电流情况下会造成电感饱和,引起解耦不充分,影响控制精度。针对这一问题,提出了一种改进型无电感解耦控制策略。首先,采用二阶广义积分器(second-order general integrator,SOGI)生成正交信号取代传统延时构造法,提高相应速度;然后采用积分模块进行改进型无电感解耦控制,避免电感饱和造成解耦不充分;最后利用MATLAB/Simulink平台对该控制策略进行仿真验证,同时基于TMS320F28335 DSP开发板为实验平台对无电感解耦的控制进行验证,实验结果表明无电感解耦控制策略具有解耦充分,控制精度高,响应速度快的特点。With the increasing popularity of electric vehicles and the increase of charge and discharge current,the traditional inductance decoupling control will cause inductance saturation under the condition of large current,resulting in insufficient decoupling and affecting the control precision.To solve this problem,an improved decoupling control strategy without inductance was proposed.Firstly,second-order general integrator(SOGI)was used to generate orthogonal signals instead of the traditional delay construction method to improve the corresponding speed.Then the integral module was used to control the feedforward decoupling without inductance to avoid the insufficient decoupling caused by inductance saturation.Finally,MATLAB/Simulink platform was used to verify the control strategy,and TMS320F28335 DSP development board was used as the experimental platform to verify the non-inductive decoupling control strategy.The experimental results show that the non-inductive decoupling control strategy has the characteristics of full decoupling,high control precision and fast response speed.

关 键 词：饱和特性 双向变换器 二阶广义积分器(SOGI) 无电感解耦 

分 类 号：TM921.52[电气工程—电力电子与电力传动]