虚拟直流电机参数自适应控制及突变特性分析  

Parameter Adaptive Control and Mutation Characteristic Analysis of Virtual DC Motor

作　　者：苗小利 侯晨祥 王帅军 郭军 MIAO Xiaoli;HOU Chenxiang;WANG Shuaijun;GUO Jun(Department of Electrical Engineering,Xuchang Electrical Vocational College,Henan Xuchang 461000,China;De-partment of Electrical Engineering,Luohe Technician College,Henan Luohe 462000,China;School of Vehicle and Traffic Engineering,Henan University of Science and Technology,Henan Luoyang 471003,China)

机构地区：[1]许昌电气职业学院电气工程系,河南许昌461000 [2]漯河技师学院电气工程系,河南漯河462000 [3]河南科技大学车辆与交通工程学院,河南洛阳471003

出　　处：《机械设计与制造》2025年第4期83-86,91,共5页Machinery Design & Manufacture

基　　金：河南省高等学校重点科研项目(22A472005)。

摘　　要：虚拟直流电机(VDCM)的优化是直流电网控制过程中不可忽略的因素。为了进一步优化调整传统VDCM控制模型,选择双向DC/DC转换器为对象,根据PWM与移相控制设计了一种改进自适应虚拟电机控制技术。采用VDCM控制时储能转换器可以对电机运行完成特性模拟,通过惯性响应来避免直流电压突变。研究结果表明;与传统下垂控制方式相比,采用自适应VDCM控制方式可以在功率突变阶段提升惯量,也可以更快恢复功率,相对普通VDCM控制方法可以更快进入稳定状态,同时实现增大系统惯性以及避免降低系统动态性能的效果。变换器VDCM控制能够显著增强直流电压对功率波动惯性响应,提高负载供电稳定性,可以在功率突变状态下使直流电压获得较大惯量,保证系统达到理想响应速率。该研究有助于提高虚拟直流电机控制精度,为后续的运行参数优化奠定一定的理论基础。The optimization of virtual DC motor(VDCM)is an important factor in the control of DC power network.In order to further optimize and adjust the traditional VDCM control model,the bidirectional DC/DC converter is selected as the object,and an improved adaptive virtual motor control technology is designed according to PWM and phase-shift control.When VDCM con⁃trol is adopted,the energy storage converter can simulate the characteristics of the motor operation and avoid the sudden change of DC voltage through inertia response.The results show that compared with the traditional sagging control mode,the adaptive VDCM control mode can improve the inertia in the power sudden change stage,and can also recover the power faster.Compared with the ordinary VDCM control mode,the adaptive VDCM control mode can enter the stable state faster,and at the same time,the system inertia can be increased and the dynamic performance of the system can be avoided.The converter VDCM control can significantly enhance the inertia response of DC voltage to power fluctuation,improve the stability of load power supply,and make DC voltage obtain a larger inertia under power abrupt state to ensure the system to achieve the ideal response rate.This re⁃search is helpful to improve the control precision of virtual DC motor and lay a theoretical foundation for the optimization of the following operating parameters.

关 键 词：虚拟电机 电压突变 参数自适应 DC/DC变换器 

分 类 号：TH16[机械工程—机械制造及自动化]