基于无源控制的光储直流微网虚拟惯性控制策略研究
摘要：为克服光储直流微网（DC microgrid with photovoltaic and storage system，DMPSS）易受功率波动和负载扰动影响的问题，提出VDCM+PBC策略，即在储能接口变换器的控制中电流内环采用无源控制（passivity-based control，PBC）策略，电压外环引入虚拟直流电机（virtual DC machine，VDCM）控制策略。仿真结果表明：与外环为VDCM、内环为PI控制策略（VDCM+PI）相比，VDCM+PBC策略可减小负载以及光伏输出功率变化时的母线电压波动，可更好地提高直流母线电压的稳定性，从而验证了所提VDCM+PBC策略的可行性。
Abstract:In order to overcome the susceptibility of DC microgrid with photovoltaic and storage system (DMPSS) to power fluctuations and load disturbances, a VDCM+PBC strategy was formed. That is, in the control of energy storage converter, a passivity-based control (PBC) was adopted in current-loop, and a virtual DC machine (VDCM) control strategy was introduced in voltage-loop. Simulation results show that, compared with the VDCM+PI strategy (i. e., the voltage-loop is VDCM control and the current-loop is PI control), the VDCM+PBC strategy can reduce the bus voltage fluctuations when the load and photovoltaic output power changes. The improved stability of DC bus voltage verifies the feasibility of the proposed VDCM+PBC strategy.
标题：基于无源控制的光储直流微网虚拟惯性控制策略研究
title:Research on Virtual Inertial Control Strategy of DC Microgrid With Photovoltaic and Storage System Based on Passivity-based Control
关键词：光储直流微网(DMPSS),无源控制,虚拟直流电机控制(VDCM),母线电压波动,
keywords:DC microgrid with photovoltaic and storage system (DMPSS),passivity-based control,virtual DC machine control (VDCM),fluctuation of DC bus voltage,
