空调负荷参与配电网光伏消纳两阶段调度策略研究  

Two-Stage Scheduling Strategy of Air-Conditioning Load Participating in Photovoltaic Absorption of Distribution Network

作　　者：方昊宸 鲁晓莉[1] 王文静[1] 陈华明 刘忠喜 FANG Hao-chen;LU Xiao-li;WANG Wen-jing;CHEN Hua-ming;LIU Zhong-xi(Jiangsu Keneng Power Engineering Consulting Co.,Ltd,Nanjing 210003,China;Nanjing Zhuoxinghui Power Engineering Consulting Co.,Ltd,Nanjing 210006,China)

机构地区：[1]江苏科能电力工程咨询有限公司,江苏南京210003 [2]南京卓兴辉电力工程咨询有限公司,江苏南京210006

出　　处：《电工电气》2021年第12期21-26,共6页Electrotechnics Electric

摘　　要：针对大规模光伏并网给配电网带来的电网运行问题,考虑空调负荷的需求响应能力,提出一种空调负荷参与配电网光伏消纳的两阶段调度策略。第一阶段,在微网层中,各空调负荷聚合商根据微网运营商在日前制定的光伏消纳计划,基于非合作博弈,共同进行市场投标,以确定日前调度计划;第二阶段,在配网层中,当微网自身无法完全消纳光伏出力,功率返送主网,导致网络中出现电压越限时,电网公司利用空调负荷的需求响应能力调节电压。仿真分析结果表明,所提策略在提升光伏消纳效果,调节配电网电压的同时,还提高了空调负荷聚合商的收益,减少了微网运营商和电网公司的调控成本。This paper aims at the grid operation problems brought by large-scale photovoltaic connections to the distribution network.It proposes a two-stage scheduling strategy for air-conditioning load to participate in the photovoltaic absorption of distribution network,considering the regulation potential of air-conditioning load.In the first stage,in the micro-grid layer,each air-conditioning load aggregator made a market bid based on a non-cooperative game to determine the day-ahead scheduling plan according to the plan of photovoltaic absorption formulated by the micro-grid operator in the past.In the second stage,the power might return to the main network when the micro-grid in the distribution network layer cannot fully absorb the photovoltaic output.This situation could lead to an over-limit voltage phenomenon in the network.The power grid company adjusted the voltage by using the regulation potential of the air-conditioning load to solve this situation.The simulation results show that the strategy proposed in this paper enhanced the utilization of photovoltaic power and adjusted the distribution network voltage.Besides,the proposal improved the profit of the air-conditioning load aggregator and reduced the regulation cost of the micro-grid operators and the power grid company.

关 键 词：光伏消纳 空调负荷 非合作博弈 电压调节 

分 类 号：TM615[电气工程—电力系统及自动化] TM715