含混合储能微网对配电网可靠性的影响  

Influence of Microgrid with Hybrid Energy Storage on Reliability of Distribution Network

作　　者：王玉梅[1] 宋兆楚 WANG Yu-mei;SONG Zhao-chu(School of Electrical Engineering and Automation,Henan Polytechnic University,Jiaozuo 454000,China)

机构地区：[1]河南理工大学电气工程与自动化学院,河南焦作454000

出　　处：《测控技术》2019年第5期122-126,138,共6页Measurement & Control Technology

基　　金：河南省科技攻关项目(112102210004)

摘　　要：混合储能可快速平滑微网中分布式电源出力的随机性,从而提升配电网可靠性。提出了一种基于网络划分的蒙特卡洛模拟法,定量研究了含混合储能微网对配电网可靠性的影响。首先建立蓄电池与超级电容组成的混合储能系统模型并制定其充放电策略;在设备发生故障后,根据系统区域划分和负荷削减模型,确定负荷停电原则,采用序贯蒙特卡洛模拟法计算可靠性指标。以改进的IEEE RBTS BUS6系统为算例,对比分析了不同储能方式的微网接入前后的系统可靠性指标,结果表明:含混合储能微网接入配电网,能提高配电网供电的可靠性。Hybrid energy storage system( HESS) can quickly smooth the output power fluctuation of distributed generation( DG) in microgrid and improve the reliability of distribution network. A Monte Carlo simulation method based on network partitioning is proposed to quantitatively study the effect of microgrid containing HESS on the reliability of distribution network. Firstly, the model of HESS composed of battery and super capacitor was established and its charging and discharging strategy was formulated. After the equipment fails, the principle of load power failure was determined according to the system regional division and load reduction model, and the reliability indexes were calculated by sequential Monte Carlo simulation. Based on the improved IEEE RBTS BUS6 system, system reliability indexes in different energy storage modes were compared and analyzed. The results show that the microgrid containing HESS access to distribution network can improve the supply reliability of distribution network.

关 键 词：配电网 微网 混合储能 可靠性评估 蒙特卡洛 

分 类 号：TM727[电气工程—电力系统及自动化] TP391.9[自动化与计算机技术—计算机应用技术]