摘要
针对主动配电系统中风光资源的波动性和负荷的随机性问题,建立了光伏发电、风力发电与负荷的多状态模型,将其不确定性转化为预想场景集。提出了以包括线路的投资、运行维护费用,分布式发电的投资、运行维护费用,网损费用及综合碳成本的系统年经济费用最小为上层规划目标函数,以分布式发电的年发电量期望值最大为下层规划目标函数的考虑网架结构和分布式电源的主动配电系统双层规划模型,引入网络连通性、辐射状、功率平衡以及无功补偿投切等约束条件,利用改进的遗传算法和原对偶内点法对上下规划模型进行求解。通过54节点的算例验证了所提模型与算法的正确性和有效性。
To deal with the volatility of photovoltaic,wind resources and the randomness of load in the active distribution system,the multi-state models for photovoltaic,wind generation and load are established respectively,and turn the uncertainties into the desired scene set.The model of bi-level programming of active distribution system considering grid structure and distributed generation is proposed.The lowest annual cost is taken as the objective function of the upper layer planning and the largest generating capacity expectation of distributed generation is taken as the objective function of the lower layer planning.Network connectivity,radial,power balance,reactive power compensation switching and other constraints are considered.The upper and lower layer of the planning model are solved by improved genetic algorithm and prime-dual interior point method.The validity and effectiveness of proposed model and algorithm are verified by the case study of a 54-bus distribution network.
作者
刘梦
杨作梁
Liu Meng;Yang Zuoliang(Skills Training Center of State Grid Jibei Electric Power Company Limited,Baoding 071051,Hebei,China))
出处
《电测与仪表》
北大核心
2018年第14期46-50,81,共6页
Electrical Measurement & Instrumentation
关键词
主动配电系统
分布式电源
多场景技术
双层规划
active distribution system
distributed generation
multiple scenarios technique
bi-level programming
作者简介
刘梦(1990—),女,硕士研究生,研究方向为电力系统运行、分析与控制,主动配电系统规划。Email:15733227850@163.com。;杨作梁(1964—),男,学士,副教授,研究方向为火电厂经济运行。
