摘要
针对配网高渗透率光伏集群经济运行以及参与系统功率调整问题,提出一种区域光伏集群的有功功率优化调度分配方法。首先,将集群内部光伏站按照储能配置与受控能力进行分类;以多场景法将光伏出力、市场电价不确定性问题转化为确定性场景,引入条件风险价值量化不确定风险;建立区域光伏集群功率分配优化模型,以集群运行成本最小为优化目标,求解最优的日前出力计划与储能运行策略;最后,针对系统扰动导致运行方式改变,提出光伏集群参与系统调整的功率重新分配策略。算例结果表明区域光伏集群具有参与系统功率调整能力,验证了本文方法的有效性。
Aiming at the economic operation of high permeability photovoltaic(PV)cluster in distribution network and its participation in system power adjustment,an active power optimal scheduling allocation method for regional PV cluster is proposed.Firstly,the PV stations in the cluster are classified according to their energy storage configuration and controllable capacity.The multi-scenario method is used to transform the uncertainty of PV output and market price into a deterministic scenario.The conditional value-at-risk(CVaR)is introduced to quantify the uncertainty risk,and a regional PV cluster power allocation optimization model is established.Taking the minimum operating cost of the cluster as the optimization objective,the optimal dayahead output plan and energy storage operation strategy are obtained.Finally,aiming at the operation mode change caused by the system disturbance,a power redistribution strategy for PV cluster participating in system adjustment is proposed.The results of the case study show that the regional PV cluster has the ability to participate in the system power adjustment and the proposed method is also proved to be effective.
作者
李华
程子月
李旭东
李振兴
牛志雷
陈斌
王扬赜
LI Hua;CHENG Ziyue;LI Xudong;LI Zhenxing;NIU Zhilei;CHEN Bin;WANG Yangze(State Grid Shanxi Electric Power Research Institutes,Xi'an 710100,China;College of Electrical Engineering and New Energy,China Three Gorges University,Yichang 443002,China;XJ Electric Co.,Ltd.,Xuchang 461000,China)
出处
《中国电力》
CSCD
北大核心
2023年第10期211-218,共8页
Electric Power
基金
国家自然科学基金资助项目(大规模电力外送通道重合闸所致重大风险分析与规避控制策略研究,52077120)。
关键词
区域光伏集群
有功分配策略
不确定性
场景法
功率重新分配
regional photovoltaic cluster
active power distribution strategy
uncertainty
scenario method
power redistribution
作者简介
通信作者:李华(1972—),男,正高级工程师,从事新能源及网源协调研究,E-mail:namelihua@126.com;程子月(1997—),女,硕士,从事新能源及网源协调研究,E-mail:ziyue_cheng@163.com。
