含海洋能发电的海岛微网能量优化调度方法  

Optimal Energy Dispatching Method for Island Microgrid with Ocean Power Generation

作　　者：牛耕 季宇 陈培坤 寇凌峰 孙树敏 滕玮 张利伟 陈继开[2] NIU Geng;JI Yu;CHEN Peikun;KOU Lingfeng;SUN Shumin;TENG Wei;ZHANG Liwei;CHEN Jikai(State Grid Shanghai Energy Interconnection Research Institute,Shanghai 201203,China;School of Electrical Engineering,Northeast Electric Power University,Jilin 132012,Jilin Province,China;State Grid Shandong Electric Power Company Electric Power Research Institute,Jinan 250002,China)

机构地区：[1]国网上海能源互联网研究院有限公司,上海市201203 [2]东北电力大学电气工程学院,吉林省吉林市132012 [3]国网山东省电力公司电力科学研究院,济南市250002

出　　处：《电力建设》2021年第6期96-104,共9页Electric Power Construction

基　　金：国家电网公司总部科技项目“分布式海洋可再生能源发电并网控制关键技术研究及示范”(5400-201916148A-0-0-00)。

摘　　要：针对海岛微电网分布式电源和负荷的独有特性,以海岛系统运行经济性为目标,考虑新能源消纳因素,提出一种海岛微电网能量优化调度方法。首先在分析典型海洋能发电出力特性的基础上,建立了含风、光、柴、储、波浪能、潮汐能以及可控负荷的海岛微网能量优化调度模型;而后面向日前和日内2个时间尺度,采用CPLEX完成混合整数规划,利用日前调度计划与日内实时滚动推演结果比对,依据日内滚动计算结果修正日前调度计划,实现当日微网能量调度全局最优。算例分析表明,由于利用了日前和日内相结合的滚动计算方法,使对岛上源、荷的预测精度逐级提高,该优化调度方法在兼顾海岛微电网功率平衡和可再生能源利用率的同时,最大限度降低了海岛微电网运维成本。In view of the exclusive characteristics of distributed sources and loads in the island microgrid, an optimal energy dispatching method for island microgrid is proposed in this paper to achieve economic operation while considering renewable power accommodation. Firstly, according to performance analysis of typical ocean power generation, the optimization model of energy dispatching for island microgrid is constructed involving wind power, photovoltaic power, diesel engine generating sets, energy storage devices, wave power, tidal power, and controllable loads. Then, on the two timescales of day-ahead and intra-day, microgrid power dispatch for the day could achieve the global optimum by using mixed integer programming on CPLEX, in which the day-ahead schedule is revised continuously in accordance with the intra-day scrollable calculation results by comparing with the intra-day real-time scrollable deductive results. The analysis shows that, by taking advantage of day-ahead and intra-day combined scrollable calculation, the prediction accuracy of the sources and loads on the island can be improved step by step, and the proposed dispatch optimization method can achieve power balance and higher renewable energy utilization while minimize the operation and maintenance costs of island microgrid.

关 键 词：海岛 微电网 海洋能发电 优化调度 

分 类 号：TM73[电气工程—电力系统及自动化]