Control Strategy of Energy Storage Converter with DC Machine Characteristics

ZHANG Hui; TAN Shucheng; XIAO Xi; ZHI Na

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Control Strategy of Energy Storage Converter with DC Machine Characteristics

更新时间：2025-12-08

- Control Strategy of Energy Storage Converter with DC Machine Characteristics
- Vol. 44, Issue 1, Pages: 119-125(2018)
- 作者机构：
  
  1. 西安理工大学自动化与信息工程学院
  2. 清华大学电机工程与应用电子技术系电力系统及发电设备控制和仿真国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：31 January 2018，
  
  Published：2018
- 稿件说明：
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ZHANG Hui, TAN Shucheng, XIAO Xi, et al. Control Strategy of Energy Storage Converter with DC Machine Characteristics[J]. 2018, 44(1): 119-125.
DOI：

ZHANG Hui, TAN Shucheng, XIAO Xi, et al. Control Strategy of Energy Storage Converter with DC Machine Characteristics[J]. 2018, 44(1): 119-125. DOI：

摘要

为平抑直流微电网中的功率波动、提升直流母线电压动态稳定性

对储能接口变换器采用具有直流电机特性的直流母线电压稳定控制策略。该方法在双闭环恒压控制基础上加入了虚拟直流电机（VDCM）环节

详细分析其工作机理并进行小信号稳定性分析

建立光储直流微电网仿真及小功率实验平台对加入VDCM前后控制方法的作用进行比较。仿真和实验结果表明

加入VDCM后的控制策略具有直流电机的惯性和阻尼特性

能够有效缓冲和抑制功率波动对直流母线电压的影响

增强直流母线电压的稳定能力。

Abstract

In order to stabilize the power fluctuation in DC microgrid and enhance the dynamic stability of DC bus voltage

we adopted a method for controlling DC bus voltage stability of energy storage converter with DC machine characteristics.In the method

the virtual DC machine（VDCM） link was added to the traditional double closed loop constant voltage control.Moreover

we analyzed the working principle of the control method and the small signal stability.The effect of control method before and after adding VDCM was compared by building a simulation model and a low-power experimental platform for the DC microgrid with photovoltaic and energy storage.Simulation and experimental results show the control method after adding VDCM has the inertia and damping characteristics of a DC machine

which can effectively buffer and suppress the influences of power fluctuation on DC bus voltage

and improve the stability of DC bus voltage.

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