考虑经济运行的多微网与配网功率交换能力态势感知方法  

Situation Awareness Method for Power Interchange Capability Among Multi-Microgrids and Distribution Network Considering Economical Operation

作　　者：宣菊琴 郑洁云 苏江文 王秋琳 戴太文 刘心[3] 马汉斌 艾芊[5] 肖斐[5] XUAN Juqin;ZHEN Jieyun;SU Jiangwen;WANG Qiulin;DAI Taiwen;LIU Xin;MA Hanbin;AI Qian;XIAO Fei(State Grid Fujian Electric Power Company, Fuzhou 350003, China;State Grid Fujian Economic Research institute, Fuzhou 350012, China;Fujian Yirong Information Technology Co., Ltd., Fuzhou 350003, China;State Grid Info-Telecom Great Power Science and Technology Co., Ltd., Fuzhou 350003, China;Shanghai Jiao Tong University, Shanghai 200240, China)

机构地区：[1]国网福建省电力有限公司,福州350003 [2]国网福建省电力有限公司经济技术研究院,福州350012 [3]福建亿榕信息技术有限公司,福州350003 [4]国网信通亿力科技有限责任公司,福州350003 [5]上海交通大学,上海200240

出　　处：《南方电网技术》2018年第8期44-50,共7页Southern Power System Technology

基　　金：国家重点研发计划资助项目(2016YFB0901300)~~

摘　　要：为了研究微网与配网之间的功率交换能力,首先,微网控制层建立包含微网综合成本和功率交换能力的优化模型,预估微网的功率交换可行域。配网控制层依据系统安全裕度指标建立功率交换可行域校正模型,实现多微网与配网间功率交换能力评估。其次,利用点估计方法构造随机变量的估计点,并通过微网层确定性优化模型求解,在保证求解速度的同时计及了多种不确定因素。最后,利用典型的微网和配网测试系统模型,验证了所提方法的正确性和可行性。功率交换能力评估结果可为多微网自主参与需求响应市场以及与上层电网间的协调优化、快速备用响应提供参考。In order to study the capability of power interchange among microgrids and the distribution network,firstly,an optimal model in microgrid control layer is proposed considering comprehensive cost and capability of power interchange,to predict power interchange feasible region of microgrids.The power interchange feasible region correction model in distribution network control layer is built based on the index of system stability margin,to evaluate the power interchange capability between multi-microgrids and distribution network.Then,the point estimation method(PEM)is introduced to construct the estimating points of random variables,and the microgrid optimal model is used which ensuring solution speed and covering plenty of uncertainties.Finally,the typical microgrid and distribution network test models are used to verify the correctness and feasibility of the proposed method.The evaluation results of the power interchange capability may provide reference for multi-microgrids participate demand response markets,coordinate power exchange capacity and fast reserve responsiveness to upper network.

关 键 词：态势感知 功率交换可行域 不确定因素 点估计 

分 类 号：TM743[电气工程—电力系统及自动化]