基于储能技术的复杂有源配电网供电可靠性分析  

Power Supply Reliability Analysis of Complex Active Distribution Network Based on Energy Storage Technology

作　　者：华明 谭景明 周杨兵 杜宁刚 蔺丽华[2] HUA Ming;TAN Jing-ming;ZHOU Yang-bing;DU Ning-gang;LIN Li-hua(State Grid Tibet Electric Power Co.,Ltd.,Lhasa 850000 China;School of Communication and Information,Xi'an University of Science and Technology,Xi'an 710054 China)

机构地区：[1]国网西藏电力有限公司,西藏拉萨850000 [2]西安科技大学通信学院,陕西西安710054

出　　处：《自动化技术与应用》2024年第2期178-182,共5页Techniques of Automation and Applications

基　　金：国网西藏电力有限公司科学技术项目(SGXZJY00JHJS2000007)。

摘　　要：分布式发电设备经过有效布局和调度可降低资源浪费,但传统方法存在布局不合理、调度效果差等问题。为此,提出基于储能技术的复杂有源配电网供电可靠性分析。首先分析分布式储能技术的基本原理,以电荷状态评价储能系统的电流剩余电量;在负荷点指标加权运算下确定电力系统中各项指标值,获取有源配电网运行过程中负荷的具体变化,简化馈线区可靠性参数,采用蒙特卡罗法抽样各层样本,运算出系统可靠性指标的期望值,确定有源配电网故障分区,根据孤岛随机变量获得系统概率可靠性指标,实现对有源配电网可靠性的全面评估和分析。实验结果表明:所提方法能够模拟电网实际运行状态,评估准确性较高。The efficient layout and scheduling of distributed generation equipment can reduce the waste of resources,but the traditional meth-ods have some problems such as unreasonable layout and poor scheduling effect.Based on this,the power supply reliability analy-sis of complex active distribution network based on energy storage technology is proposed.This paper analyzes the basic principle of distributed energy storage technology,evaluates the residual current of energy storage system by charge state,determines the in-dex values of power system under the weighted operation of load point index,obtains the specific changes of load during the opera-tion of active distribution network,simplifies the reliability parameters of feeder area,takes samples of each layer by Monte Carlo method,and calculates the period of system reliability index.The expected value is used to determine the fault zone of the active distribution network,and the probability reliability index of the system is obtained according to the island random variable,so as to realize the comprehensive evaluation and analysis of the reliability of the active distribution network.The experimental results show that the proposed method can simulate the actual operation state of power grid,and the evaluation accuracy is high.

关 键 词：储能技术 有源配电网 概率统计法 蒙特卡罗法 孤岛 

分 类 号：TP391[自动化与计算机技术—计算机应用技术] TM714[自动化与计算机技术—计算机科学与技术]