电力系统自动化Issue(7)：89-96,8.DOI:10.7500/AEPS20140523009
含风电场的交直流互联电力系统网省协调有功调度优化方法
A Regional and Provincial Grid Coordination Optimization Method for Active Power Dispatch in AC*DC Interconnected Power System with Wind Power Integration
摘要
Abstract
To solve the regional and provincial grid coordination optimization problem for active power dispatch in AC/DC interconnected power system with wind power integration,an optimization model is developed with total fuel consumption of generators and power loss of AC-DC tie-line as two obj ective functions.Spinning reserve constraints required by provincial network to cope with the randomness of wind farm power output,and security constraints of the inter-provincial AC tie-line sections are both considered.The decision variables are the adj ustment of power output of provincial generators and the adjustment of power transmission of inter-provincial DC links.In order to reduce the dimension of decision variables,a practical selection strategy for the compression of the coordinative units is proposed,and a DC power flow model is adopted to approximately describe the relationship between power transmission in the AC link and the inj ected power of nodes,and the relation between power loss of AC link and the injective power of nodes.The normal boundary intersection(NBI)method and the primal-dual interior point method are adopted to obtain the uniformly distributed Pareto optimal solution set.According to the fuzzy membership and entropy weight method,a compromise optimal decision is selected from Pareto optimal solution set. By taking an actual large-scale AC/DC interconnected power grid as an example,it has been found that the results of the regional and provincial grid coordination dispatch demonstrate the effectiveness of the proposed optimization model and solving algorithm,showing that the compromise optimal dispatch scheme has better economic benefit than the dispatch scheme before coordination optimization.关键词
交直流互联电力系统/风力发电/经济调度/网省协调/法线边界交叉法/直流潮流/模糊隶属度/熵权法Key words
AC/DC interconnected power system/wind power generation/economic dispatch/regional and provincial grid coordination/normal boundary intersection method/DC power flow/fuzzy membership/entropy weight method引用本文复制引用
陆文甜,林舜江,刘明波,黄庶,杨柳青..含风电场的交直流互联电力系统网省协调有功调度优化方法[J].电力系统自动化,2015,(7):89-96,8.基金项目
国家重点基础研究发展计划(973计划)资助项目(2013CB228205) （973计划）
国家自然科学基金资助项目(51207056).@@@@This work is supported by National Basic Research Program of China（973 Program）（No.2013CB228205）and National Natural Science Foundation of China （51207056）
