期刊论文

A New Control Technology Based on Virtual DC Motor

中文

中国电机工程学报

0258-8013

2019

39

10

3029-3037

10.13334/j.0258-8013.pcsee.180782

国家重点研发计划项目(2016YFB0900400) 国家自然科学基金项目(51507158) 国家电网公司科技项目(PD71-17-008).

本校为第一机构

为解决新能源发电与负荷的随机波动引起的直流母线以及负荷侧直流电压的波动,提出一种虚拟直流电机控制技术。针对直流母线侧与负荷侧将虚拟直流电机控制技术分为虚拟直流发电机(virtual direct current generator,VDG)技术与虚拟直流电动机(virtual direct current motor,VDM)技术。虚拟直流电机控制技术将直流电机的机械方程与电动势平衡方程应用到控制算法当中,模拟直流电机的惯量特性与阻尼特性,使得在新能源发电波动以及负荷突变时直流母线电压与负荷侧电压仍能保持稳定。建立虚拟直流电机控制的小信号模型,分析系统的稳定性。为有效应对负载突变时直流母线电压跌落的问题,将扩张状态观测器...

In order to solve the DC voltage fluctuation of DC bus and load side caused by random fluctuation of new energy generation and load, a virtual DC motor control technology was proposed in this paper, which was divided into virtual direct current generator technology and virtual direct current motor technology for DC bus side and load side, respectively. Virtual DC motor control technology applies the mechanical equation and electromotive force balance equation of DC motor to the control algorithm. By simulating the inertia and damping characteri...