摘要
针对微电网调度目标函数鲁棒性较低、转换功率效率较差的问题,为了保证综合能源的最大化以及高质量利用,本文提出考虑网络约束和区间不确定性的综合能源微电网鲁棒优化调度方法。在电转气模型、燃气轮机模型的基础上,提出电气互联平衡模型,分析综合能源之间的转换关系,构建[火用]效率目标函数;结合网络相关约束以及置信间隙决策函数对目标函数进行鲁棒优化,处理调度过程中的不确定性参数;利用改进布谷鸟算法进行求解,获取鲁棒优化调度结果。测试结果表明:显著性水平取值为0.05时,可实现综合能源微电网的调度,保证各能源的损耗最小,且能够最大程度地利用综合能源之间的协同作用,使电转气装置的处理结果最大程度地接近最大转换功率500MW,实现了鲁棒优化调度。
Aiming at the problems of low robustness of microgrid scheduling objective function and poor conversion power efficiency, in order to ensure the maximization and high-quality utilization of comprehensive energy, a robust optimal scheduling method of comprehensive energy microgrid considering network constraints and interval uncertainty is proposed in this article. Based on the electricity to gas model and gas turbine model, a electrical interconnection balance model is proposed, the conversion relationship between comprehensive energy is analyzed, and the efficiency objective function is constructed. Combined with network related constraints and confidence gap decision function, the objective function is robustly optimized to deal with the uncertain parameters in the scheduling process. The improved cuckoo algorithm is used to solve it and obtain the robust optimal scheduling results. The test results show that when the significance level is 0.05, the dispatching of comprehensive energy microgrid can be realized, the loss of each energy can be minimized, the synergy between comprehensive energy can be utilized to the greatest extent, the processing result of electricity to gas device can be close to the maximum conversion power of 500MW, and robust optimal scheduling can be realized.
作者
阎誉榕
刘泽三
张维
李彦龙
YAN Yurong;LIU Zesan;ZHANG Wei;LI Yanlong(State Grid Information and Communication Industry Group Co.,Ltd.,Beijing 102211,China)
出处
《大电机技术》
2023年第1期91-97,共7页
Large Electric Machine and Hydraulic Turbine
关键词
网络约束
区间不确定性
综合能源
微电网
优化调度
能源转换
network constraint
interval uncertainty
integrated energy
microgrid
optimal scheduling
energy conversion
