Study on DC Microgrid Coordination Control Strategy of Optical-storage-fuel Based on Power Signal Discrimination

SONG Xianke; FAN Yanfang; LIU Qunjie; ZHAO Fengming

doi:10.14044/j.1674-1757.pcrpc.2020.03.031

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Study on DC Microgrid Coordination Control Strategy of Optical-storage-fuel Based on Power Signal Discrimination

更新时间：2024-09-14

- Study on DC Microgrid Coordination Control Strategy of Optical-storage-fuel Based on Power Signal Discrimination
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 41, Issue 3, Pages: 197-204(2020)
- 作者机构：
  
  1. 新疆大学电气工程学院
  2. 国网浙江省电力有限公司丽水供电公司
  3. 国网河南省电力有限公司周口供电公司
  4. 国网浙江省电力有限公司绍兴供电公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2020.03.031
  CLC： TK01;TM73
- Published：2020，
- 稿件说明：
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[1]宋宪可,樊艳芳,刘群杰,赵丰明.基于功率信号判别的光-储-燃直流微网协调控制策略研究[J].电力电容器与无功补偿,2020,41(03):197-204.

SONG XIANKE, FAN YANFANG, LIU QUNJIE, et al. Study on DC Microgrid Coordination Control Strategy of Optical-storage-fuel Based on Power Signal Discrimination. [J]. Power capacitor & reactive power compensation, 2020, 41(3): 197-204.
[1]宋宪可,樊艳芳,刘群杰,赵丰明.基于功率信号判别的光-储-燃直流微网协调控制策略研究[J].电力电容器与无功补偿,2020,41(03):197-204. DOI： 10.14044/j.1674-1757.pcrpc.2020.03.031.

SONG XIANKE, FAN YANFANG, LIU QUNJIE, et al. Study on DC Microgrid Coordination Control Strategy of Optical-storage-fuel Based on Power Signal Discrimination. [J]. Power capacitor & reactive power compensation, 2020, 41(3): 197-204. DOI： 10.14044/j.1674-1757.pcrpc.2020.03.031.

摘要

在直流微网孤岛模式下

针对常用的分层控制存在储能控制模式切换频繁、电压波动较大等缺点

本文提出一种基于功率信号判别的控制策略。以光伏阵列、混合储能系统、燃料电池构成的直流微网为研究对象

通过对光伏输出功率、直流母线电压电流及混合储能系统的SOC（state of charge荷电状态）等信息的实时采集

判断直流微网内的功率大小和方向

通过对各分布式电源的协调控制

使得微网系统功率达到平衡状态

进而维持直流母线电压的稳定。基于Matlab/Simulink仿真平台上搭建仿真模型

验证了微网不同模式切换控制策略的有效性

其控制策略明显优越于常用的分层控制策略。

Abstract

Under the isolated island mode of DC microgrid

in view of such shortcomings as frequent switching of energy storage control mode and large voltage fluctuation existing in the common hierarchical control

a kind of control strategy based on power signal discrimination is proposed in this paper.The DC microgrid composed of photovoltaic array

hybrid energy storage system and fuel cell is taken as the study object

the power magnitude and direction in DC microgrid are judged through real-time acquisition of information such as photovoltaic output power

DC bus voltage and current

and SOC（state of charge） of hybrid energy storage system.The balance state of system power of the microgrid is reached through coordinated control of various distributed power sources

thus keeping stability of DC busbar voltage.The simulation model is set up based on the simulation platform of Matlab/Simulink

the effectiveness of different mode switching control strategies in the microgrid is verified and it is shown that the control strategy is obviously superior to the commonly used hierarchical control strategy.

关键词

直流微网混合储能SOC协调控制能量管理

Keywords

DC microgridhybrid energy storageSOCcoordinated controlenergy management

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