摘要
针对传统供电能力评估方法中难以在负荷高峰期全网N-1准则的基础上满足用户差异化可靠性需求并同时计及DG与储能接入影响的问题,提出了一种新的中压有源配电系统供电能力评估方法。首先,构建了以最大供电能力为目标、不同用户的差异化可靠性需求为主要约束的含分布式光伏序列与蓄电池两级配电系统供电能力评估模型。其次,考虑分布式光伏与蓄电池的接入,建立了基于准序贯蒙特卡洛模拟的变电站与中压配电网一体化可靠性评估方法。再次,建立了基于遗传算法的供电能力评估模型的优化方法,并通过算例验证了本文方法的有效性和实用性。
In the traditional power supply capability evaluation method,it is difficult to meet the user’s differentiated re⁃liability requirements based on the(N-1)criterion for the entire network during the peak load period and to take into ac⁃count the impact of DG and energy-storage integration.To solve this problem,a novel evaluation method for the power supply capability of a medium-voltage active power distribution system is proposed.First,the power supply capability evaluation model for a two-level distribution system containing distributed photovoltaic sequence and battery is construct⁃ed with the maximum power supply capability as its goal and the differentiated reliability requirements of different users as its main constraints.Second,considering the connection of distributed photovoltaic and battery,an integrated reliabil⁃ity evaluation method for substations and the medium-voltage distribution network is proposed based on the quasi-sequen⁃tial Monte Carlo simulation.Third,the optimization method for the power supply capability evaluation model based on ge⁃netic algorithm is put forward,and the effectiveness and practicality of the proposed method is verified by an example.
作者
郑志杰
冯亮
李昭
崔灿
赵韧
王耀雷
ZHENG Zhijie;FENG Liang;LI Zhao;CUI Can;ZHAO Ren;WANG Yaolei(Economic and Technological Research Institute,State Grid Shandong Electric Power Corporation,Jinan 250021,China)
出处
《电力系统及其自动化学报》
CSCD
北大核心
2021年第6期121-125,共5页
Proceedings of the CSU-EPSA
基金
国网山东省电力公司经济技术研究院资助项目(52062518000L)。
关键词
有源配电系统
供电能力
差异可靠性
准序贯蒙特卡洛模拟
遗传算法
active power distribution system
power supply capability
differentiated reliability
quasi-sequential Mon⁃te Carlo simulation
genetic algorithm
