摘要
微网结构中电源功率的随机性、储能装置的应用及复杂的运行控制策略使得微网的可靠性分析异常困难。分析微网常用的两种控制策略,基于不同的原则,制定微网的三种运行策略;建立微网的储能模型及孤岛型微网的输出功率模型;考虑发电容量、网架结构及负荷停运因素对系统可靠性的影响,建立微网内部故障影响矩阵,并给出基于多种策略的孤岛型微网可靠性分析方法。通过算例分析可知,对于孤岛型储能微网,该模型及方法能较准确地评估系统可靠性。
Considered on randomness of distributed power output power,the application of energy storage equipment,the complex system operation and control strategy,the reliability analysis becomes extreme difficult.Through analyzing the effect of two common control strategies,this paper proposes three different operation strategies based on different principles.The energy storage and output power model were built for an island microgrid.Taking the impact of generation capacity,network structure and load outage factors into consideration,an outage influence matrix and proposes a reliability analysis method based on such strategies for an island microgrid was established.The example showed that the model and method could evaluate reliability accurately for an island microgrid contained some energy storages.
作者
谢林
李子清
苟旭
郑永伟
XIE Lin;LI Ziqing;GOU Xu;ZHENG Yongwei(Chongqing Beibei Power Supply Branch Company of State Grid,Chongqing 400700,China;Sichuan Zigong Power Supply Company of State Grid,Zigong 643000,China;Sichuan Electric Power Design ＆ Consulting Co.,Ltd.,Chengdu 610016,China;Sichuan Neijiang Power Supply Company of State Grid,Nanchong 641000,China)
出处
《电工技术》
2018年第17期4-8,共5页
Electric Engineering
关键词
微网
储能
运行策略
可靠性评估
island microgrid
control strategy
operation strategy
reliability evaluation
