摘要
多区域互联电力系统如何合理应对风电、光伏出力的多重不确定性是当今电力系统优化调度的研究热点。基于风光接入后多区域互联电力系统的结构,分析了电力系统应对风光出力不确定性需设置的旋转备用容量,建立了计及多维随机变量间相关性的联合机会约束形式的旋转备用约束和多区域互联电力系统机组组合模型。仿真结果表明:与确定性模型比较,本文模型在求解时间仅增加12%的前提下,降低运行成本约17%。
A key research focus in power system optimization nowadays is how multi-area interconnected power systems can effectively handle the multiple uncertainties in wind and photovoltaic power outputs.Based on the structure of the multi-area interconnected power systems after the integration of wind and photovoltaic powers,the spinning reserve capacity required for the power systems to address the wind-photovoltaic output uncertainties is analyzed.The spinning reserve constraint in the form of joint chance constraints considering the correlation between multi-dimensional random variables and the unit commitment model for multi-area interconnected power systems are established.The simulation results show that the proposed model can reduce the operation cost by about 17%while only increase the solution time by 12%compared with deterministic models.
作者
曾鸿宇
ZENG Hongyu(Datang Hydropower Science&Technology Research Institute Co.,Ltd.,Chengdu 610036,China)
出处
《水电与新能源》
2025年第9期99-104,112,共7页
Hydropower and New Energy
关键词
风光不确定性
多区域互联电力系统
机组组合
多维联合机会约束
wind-photovoltaic uncertainty
multi-area interconnected power system
unit commitment
multi-dimensional joint chance constraints
