摘要
为实现含微电网的主动配电网各目标主体的综合效益最优,考虑引入需求响应和联络线交互策略,建立上层配电网有功网损最小,下层微电网第一阶段经济性和环保性指标综合最优、第二阶段功率不平衡量最小的双层两阶段调度优化模型。设置节点电压、储能设备荷电状态等越限惩罚项,以保证系统安全经济运行。借助二阶锥和凝聚函数对模型进行简化处理,编制NSGA-Ⅱ算法和调用MOSEK、Bonmin优化工具包对搭建的配电网和微电网算例系统进行求解和验证,以分析各因素对优化调度结果的灵敏度。结果表明在使用本文调度策略、目标模型和求解算法后,能够有效实现配—微电网多目标函数的协同优化,同时提高了配电网的电能质量和微电网的综合效益。
In order to achieve the best overall benefit of each target subject of active distribution network including microgrid,this paper introduces strategies such as demand response and tie line interaction to establish a double-layer two-stage dispatching optimization model.In the model,the upper distribution network features minimal active power loss,while the lower microgrid features best economic and environmental protection indexes in the first stage and minimal power unbalance in the second stage.To ensure the safe and economic operation of the system,the off-limit penalty items such as node voltage and SOC of energy storage equipment are set.The model is simplified by the second-order cone and aggregation function.Then,we adopt the NSGA-Ⅱalgorithm and the MOSEK and Bonmin optimization toolkit to calculate and verify the established distribution network and microgrid example system with the purpose of analyzing the sensitivity of various factors to the optimal dispatching results.The results show that the proposed dispatching strategy,objective model and solving algorithm help realize the coordinated optimization of the multi-objective function of distribution-microgrid.Meanwhile,they also help improve the power quality of the distribution network and the comprehensive benefit of the microgrid.
作者
徐岩
张建浩
XU Yan;ZHANG Jianhao(State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University,Baoding 071003,China)
出处
《华北电力大学学报（自然科学版）》
CAS
北大核心
2021年第1期1-14,共14页
Journal of North China Electric Power University：Natural Science Edition
基金
国家重点研发计划项目(2016YFB0900203)
国家自然科学基金青年科学基金项目(51807064).
关键词
主动配电网
微电网
需求响应
联络线交互
多目标博弈
二阶锥
凝聚函数
active distribution network
microgrid
demand response
tie line interaction
multi-objective game
second-order cone
aggregation function
