摘要
含微网配电系统的可靠性评估中,为保证结果的收敛,蒙特卡洛模拟法需消耗大量的仿真时间。针对耗时问题,提出了一种基于储能多状态模型的可靠性评估算法。该算法首先建立了微网净功率多状态模型和储能SOC值的多状态模型。其次,为了评估孤岛微网的负荷停电情况,提出了孤岛后果分析的定义以及孤岛后果分析的方法。然后,基于两多状态模型和微网的孤岛后果分析,提出了一种适用于含微网配电系统的可靠性评估算法。最后,算例分析表明在保证精度的同时,本算法能节约90%的仿真时间。此外,算例还对本算法的收敛性和实用性进行了分析。
To ensure result＇s convergence, plenty of simulation time is cost based on Monte Carlo simulation for evaluating reliability of distribution network with microgrid. To solve this problem, this paper proposed a reliability evaluation algorithm based on multi-state model. Firstly, multi-state models of microgrid net power and energy storage were built respectively. Secondly, to evaluate the reliability of island microgrid, the definition and method of island microgrid effect analysis were proposed. Thirdly, a reliability evaluation algorithm was proposed based on two multi-state models and island microgrid effect analysis. Case study proved that simulation time of using this algorithm was reduced by nearly 90% with accuracy guaranteed. In addition, convergence and practicability of this algorithm were also analyzed.
出处
《电网技术》
EI
CSCD
北大核心
2017年第7期2222-2228,共7页
Power System Technology
基金
国家自然科学基金(51377162)
中央高校基本科研业务费专项资金资助~~
关键词
储能
多状态模型
微网
配电系统
可靠性评估
energy storage
multi-state model
microgrid
distribution network
reliability evaluation
