广东电力2024，Vol.37Issue(4)：38-48,11.DOI:10.3969/j.issn.1007-290X.2024.04.005
含储能的多端口柔性合环开关协调控制研究
Research on Coordinated Control Strategy of Multi-port Flexible Closed-loop Switch with Energy Storage System
摘要
Abstract
With the increasing proportions of renewable energy such as photovoltaics and wind energy in flexible distribution networks,the intermittent output of renewable energy generation has brought instability and volatility to the power system.Due to hardware parameters and capacity limitations,the existing flexible closed-loop switches are unable to cope with the frequency overload and open circuit problems caused by load over capacity fluctuations and power flow transfer.Therefore,it is necessary to combine flexible closed-loop switch with energy storage technology to build a new type of flexible interconnected distribution network.For a multi-port flexible closed-loop switch with a battery energy storage system,design corresponding control strategies.Firstly,an adaptive SOC balancing control strategy is designed to address the imbalance of SOC in energy storage units caused by different hardware parameters and working conditions.When there are large fluctuations in load and open circuit faults on the voltage stabilizing side,corresponding coordinated control strategies are designed to adjust the grid frequency and provide short-term DC voltage support to ensure the stable operation of lower level loads.Finally,the proposed coordinated control strategy is validated using models based on MATLAB/Simulink platform and RTLAB hardware in the loop platform,and the results verifies the effectiveness and practicality of the designed strategies.关键词
柔性合环开关/电池储能系统/协调控制/荷电状态均衡/柔性配电网Key words
flexible closed-loop switch/battery energy storage system/coordinated control/SOC equilibrium/flexible distribution network分类
信息技术与安全科学引用本文复制引用
蒋维,李新,王圣,李锦焙,宋安琪..含储能的多端口柔性合环开关协调控制研究[J].广东电力,2024,37(4):38-48,11.基金项目
中国南方电网有限责任公司科技项目(GDKJXM20220255) （GDKJXM20220255）
