三参数自适应虚拟直流电机控制研究  

Research on Three⁃Parameter Adaptive Virtual DC Motor Control

作　　者：王洋 赵晓敏 刘克轩 单小雨 WANG Yang;ZHAO Xiaomin;LIU Kexuan;SHAN Xiaoyu(State Grid Inner Mongolia Eastern Electric Power Co.,Ltd.,Electric Power Research Institute,Hohhot 010010,China;China University of Petroleum(East China)New Energy Institute,Qingdao 266580,China)

机构地区：[1]国网内蒙古东部电力有限公司电力科学研究院,呼和浩特010010 [2]中国石油大学(华东)新能源学院,山东青岛266580

出　　处：《内蒙古电力技术》2024年第3期33-41,共9页Inner Mongolia Electric Power

基　　金：国家自然科学基金专项项目“可再生能源直流离网制氢系统电能传输变换与协同保护控制关键”(52241702)。

摘　　要：在直流变换器中引入虚拟直流电机控制可为直流系统提供额外的惯性和阻尼支撑。但传统虚拟直流电机控制中控制参数的恒定使其缺少灵活性。两参数自适应虚拟直流电机控制虽然在传统虚拟直流电机控制的基础上,通过实现惯性、阻尼两参数的灵活变化,提高了直流母线电压的稳定性,但提升效果有限。除惯性、阻尼以外的控制参数,对直流母线电压的稳定性也有着很大影响。针对该问题,本文以双有源全桥直流变换器为拓扑,分析了惯性、阻尼以及电枢电阻等参数对直流母线电压稳定性的影响机理,在此基础上提出三参数自适应虚拟直流电机控制。最后通过仿真与试验,验证了三参数自适应虚拟直流电机控制在抑制直流母线电压波动、提高系统动态响应速度等方面的优越性。Adding the virtual DC motor control into DC converter can provide additional inertial and damping support for the DC system.But the constant control parameters in the traditional virtual DC motor control make it lack of flexibility.On the basis of traditional virtual DC motor control,the two⁃parameter adaptive virtual DC motor control can improve the stability of DC bus voltage by realizing the flexible change of inertia and damping parameters,but the improvement effect is limited.The control parameters other than inertia and damping also have great influence on the stability of DC bus voltage.To solve this problem,this paper takes the dual active full⁃bridge DC converter as topology,analyzes the influence mechanism of inertia,damping and armature resistance on the voltage stability of DC bus,and proposes the three⁃parameter adaptive virtual DC motor control.Finally,through simulation and experiment,the advantages of three⁃parameter adaptive virtual DC motor control in suppressing DC bus voltage fluctuation and improving system dynamic response speed are verified.

关 键 词：直流变换器 直流微电网 虚拟直流电机控制 参数自适应控制 

分 类 号：TM46[电气工程—电器] TM721.1