摘要
为解决可再生能源大规模接入造成的源荷错位以及对系统电能质量造成的影响,以储能系统和配电系统静止同步补偿器(Distribution Static Compensator,DSTATCOM)为优化对象,构建含储能系统以及DSTATCOM的协调优化模型。计及储能系统频繁充放电以及过充过放等行为对寿命的严重影响,将其折为费用并联合DSTATCOM的运行费用作为经济指标,同时选取有功网损、电压偏差为系统性能指标,联合经济指标与系统性能指标为目标函数以此平衡经济性与安全性。最后以IEEE33节点系统为算例,引入某地区风、光的典型日出力,采用NSGA-Ⅱ对协调优化模型进行仿真分析,仿真结果验证所提优化模型以及策略的有效性与准确性。
Large-scale of renewable energy access to distribution network has brought some problems,including the dislocation of source and load and the influence of the power quality of system. A coordinated optimization model with energy storage system and distribution static compensator(DSTATCOM) selected as the optimized objects is constructed. Behaviours like frequent charge-discharge and over-charge and over-discharge have serious influences on the life of energy storage system. Economic indicators cover operation cost of DSTATCOM and loss cost of energy storage system caused by the serious influence. Active power loss and voltage deviation are selected as the system performance indexes. Objective functions contain economic indicators and system performance indexes to balance the economy and safety. Taking the IEEE33 node system as the example,this paper introduces the output of wind and photovoltaic in typical day under typical weather and carries out simulation analysis on the coordinated optimization model by NSGA-Ⅱ. The simulation results verified the validity and the accuracy of the proposed optimization model and strategy.
作者
余利
张涛
姚剑峰
张陈
冯朕
李逸鸿
YU Li;ZHANG Tao;YAO Jianfeng;ZHANG Chen;FENG Zhen;LI Yihong(College of Electrical Engineering and New Energy,China Three Gorges University,Yichang 443002,China;State Grid Jiaxing Power Supply Company,Jiaxing 314000,China)
出处
《电力科学与工程》
2019年第10期16-21,共6页
Electric Power Science and Engineering
基金
湖北省教育厅科学技术研究计划重点项目(D20181204)
国网浙江省电力有限公司创新项目(5211JX90012)
