摘要
大量分布式光伏并网给配电网运行带来了诸多电压控制问题,需求侧灵活性资源参与调压可减少由此带来的弃光。在构建中国新型电力市场机制的背景下,提出了一种高渗透光伏配电网第三方主体调压辅助服务补偿机制与获取策略。分析了第三方主体的补偿范围,讨论了调压辅助服务补偿标准的形成方法。针对由高渗透光伏导致的配网调压困难场景,提出了由光伏发电商分摊调压辅助服务费用。在充分考虑电网侧调压设备能力的基础上,以光伏发电商弃电量损失和第三方主体调压补偿费用最小化为目标,建立了配电网日前调压辅助服务优化获取模型。算例分析表明:所提调压补偿和优化获取策略可在维持配电网安全运行的同时,兼顾光伏发电商和第三方主体的收益,实现多方共赢。
The large-scale grid connection of distributed photovoltaics brings many voltage problems.Demand responses can bring flexible voltage regulation ability to solve problem of photovoltaics curtailments.Under the background of building the new type power market mechanism,a strategy for third-party entity voltage regulation ancillary service procurement in distribution networks with high-penetration PV is proposed.Based on the analysis of the compensation range of third-party entity,the computation method of the compensation mechanism of third-party entity voltage regulation ancillary service is discussed.For the scenario of high penetration PV induced voltage regulation difficulty,we suggest the photovoltaic power generation companies share the compensations of voltage regulation ancillary service.Considering fully regulation ability of grid side reactive power equipment,an optimization model for third-party entity voltage regulation ancillary service procurement in distribution networks is established,which the goal is to minimize the costs of photovoltaics curtailment and the compensations of voltage regulation ancillary service.An example shows that the strategy proposed in this paper can maintain the safe operation of the distribution network while taking into account the benefits of the photovoltaic power companies and the third-party entities,and achieve a win-win situation for all parties.
作者
白晶
金广厚
孙鹤林
胡楚樊
赵晋泉
陈天华
BAI Jing;JIN Guanghou;SUN Helin;HU Chufan;ZHAO Jinquan;CHEN Tianhua(State Grid Beijing Electric Power Company,Beijing 100031,China;College of Energy and Electrical Engineering,Hohai University,Nanjing 211100,China;NARI Group Corporation,Nanjing 211106,China)
出处
《中国电力》
CSCD
北大核心
2023年第4期95-103,111,共10页
Electric Power
基金
国家电网有限公司科技项目(5100-202111025A-0-0-00)
国家自然科学基金资助项目(51577049)。
关键词
高渗透分布式光伏配电网
第三方主体
调压辅助服务
补偿机制
high-penetration distributed photovoltaic distribution network
third-party entity
voltage regulation ancillary service
compensation mechanism
