计及风电接纳能力和风险因素的输电系统规划方法  

Transmission System Planning Method Considering Risk Volatility and Capability of Accommodating Wind Power

作　　者：孙波[1] 文福拴[1,2] 胡列翔[3] 徐谦[4] 兰洲[4] 

机构地区：[1]浙江大学电气工程学院,杭州310027 [2]文莱科技大学电机与电子工程系 [3]国网浙江省电力公司,杭州310007 [4]国网浙江省电力公司经济技术研究院,杭州310008

出　　处：《电力系统及其自动化学报》2015年第10期9-15,26,共8页Proceedings of the CSU-EPSA

基　　金：国家自然科学基金委员会资助项目(51361130152;51477151);国网浙江省电力公司科技项目(5211DS14000X)

摘　　要：电力系统中风电渗透水平的不断提高给电力系统安全与经济运行带来了新的问题和挑战。输电系统规划时既要充分考虑系统对风电的接纳能力,也要适当计及风电对系统安全与经济运行所带来的风险。在此背景下,提出计及风电接纳能力和风险因素的含风电场的输电系统两层规划模型,兼顾了输电投资成本、切负荷惩罚、弃风惩罚以及风电场所带来的综合效益,并考虑了安全约束。上下层之间存在交互作用,最终由上层决策获得输电系统规划方案。上层规划和下层规划在数学上分别为混合整数非线性问题和线性规划问题,分别采用改进的粒子群算法和线性规划求解器ILOG CPLEX求解。最后,用修改的18节点和46节点两个系统对所发展的模型和采用的算法进行了说明。The ever-increasing penetration of wind power has resulted in some new problems and challenges to the secure and economic operation of the power system concerned. Thus,in transmission system planning it is necessary to consider the capability of accommodating wind power as well as the risks caused by wind power. Given this background,a bi-level transmission system planning model for this purpose is presented with transmission investment cost,load shedding punishment,abandoned wind power punishment,the comprehensive benefit of wind power as well as security constraints considered. These two levels are implemented interactively and iteratively,and the optimal transmission system planning scheme will ultimately be attained. The upper level model is described as a mixed-integer optimization problem,and solved by the well-established particle swarm optimization algorithm;the lower level model is formulated as a linear programming problem,and solved by the linear programming solver ILOG CPLEX. Finally,the essential features of the developed model and adopted algorithms are demonstrated by modified 18-bus and modified 46-bus test systems.

关 键 词：输电系统规划 风力发电 风险波动 接纳能力 两层规划 

分 类 号：TM73[电气工程—电力系统及自动化]