Study on Control Method of the Ultra-capacitor Energy Storage System in DC Micro-grid

WANG Huijuan; ZHANG Jiancheng; FENG Xiao

doi:10.14044/j.1674-1757.pcrpc.2016.05.026

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Study on Control Method of the Ultra-capacitor Energy Storage System in DC Micro-grid

更新时间：2024-09-14

- Study on Control Method of the Ultra-capacitor Energy Storage System in DC Micro-grid
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 37, Issue 5, Pages: 134-139(2016)
- 作者机构：
  
  1. 华北电力大学新能源电力系统国家重点实验室
  2. 国网冀北电力有限公司检修分公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2016.05.026
  CLC： TM53;TM727
- Published：2016，
- 稿件说明：
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[1]王慧娟,张建成,冯骁.直流微网中超级电容器储能系统控制方法研究[J].电力电容器与无功补偿,2016,37(05):134-139.

WANG HUIJUAN, ZHANG JIANCHENG, FENG XIAO. Study on Control Method of the Ultra-capacitor Energy Storage System in DC Micro-grid. [J]. Power capacitor & reactive power compensation, 2016, 37(5): 134-139.
[1]王慧娟,张建成,冯骁.直流微网中超级电容器储能系统控制方法研究[J].电力电容器与无功补偿,2016,37(05):134-139. DOI： 10.14044/j.1674-1757.pcrpc.2016.05.026.

WANG HUIJUAN, ZHANG JIANCHENG, FENG XIAO. Study on Control Method of the Ultra-capacitor Energy Storage System in DC Micro-grid. [J]. Power capacitor & reactive power compensation, 2016, 37(5): 134-139. DOI： 10.14044/j.1674-1757.pcrpc.2016.05.026.

摘要

直流微网有利于光伏等可再生能源的接入

便于为直流负荷提供电能

节约成本。但直流微网易受到新能源出力和负载波动影响

存在运行不稳定、电能质量差等缺点。本文提出一种用于双向DC/DC电路中的滑模变结构控制方法

该方法可应用于孤岛运行和并网运行2种方式控制。在Matlab/Simulink平台上分别搭建了孤岛光伏供电系统和并网光伏系统的直流微网仿真系统

仿真结果表明该方法可以提高供电电能质量

提高直流微网电压质量

此结果验证了控制方法的鲁棒性和有效性。

Abstract

DC micro-grid is beneficial to the access of such renewable energy as photovoltaic system

is convenient to provide electricity for DC load and can save the cost. However

DC micro-grid is easily affected by the output of new energy and load fluctuation and therefore has such weak points as unstable operation and weak power quality. In this paper

a sliding mode structure control method for bidirectional DC/DC circuit is proposed

which can be used in both island operation and grid-connection operation. The DC micro-grid simulation method for island power supply system and grid connection photovoltaic system is set up on the Matlab/Simulink platform respectively. The simulation results show that this method can improve quality of power supply and voltage DC micro-grid

and verify the robustness and effectiveness of the control method.

关键词

直流微网超级电容器滑模控制孤岛运行并网运行

Keywords

DC micro-girdultra-capacitorsliding mode controlisland operationgrid-connection operation

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