摘要
随着光伏和风电等多种分布式电源的接入,使得传统配电网的结构及其运行状态发生了较大改变。因此,通过建立直观的分布式电源接入评价体系,对新型电力系统背景下的配电网接入分布式电源的承载力进行合理评估成为重要的研究内容。以可再生能源及无功补偿装置接入的新型配电网中风电和光伏发电的最大容量为目标函数,建立分布式电源接入配电网的承载能力模型,通过二阶锥松弛将该模型转化为二阶锥规划模型进行求解。然后考虑到配电网运行的优质性、经济性以及灵活性,建立多层次承载能力评估体系,根据模型求解结果计算承载能力评价指标,再通过组合赋权法将评价指标计算结果转化为综合评分。最后通过对IEEE33节点系统配电网模型进行算例分析,结果表明所提评估方法更为全面、有效。
Access to various distributed generation such as photovoltaics and wind turbines has changed the structure and operation of the traditional distribution network.Therefore it has become an important research topic to establish an intuitive distributed power access evaluation system and to reasonably evaluate the carrying capacity of the distribution network connected to distributed power in the new power system.The maximum capacity of wind power and photovoltaic connected to the new distribution network with renewable energy and reactive power compensation devices is used as the objective function to establish the carrying capacity model of the distribution network.It is converted into a second-order cone programming model for the solution.Then,a multi-level carrying capacity evaluation system is established by taking into account the high quality,economy,and flexibility of the distribution network operation,and a carrying capacity evaluation index is calculated according to the model solution results.The calculation results of the evaluation indicators are transformed into the calculation model of the comprehensive score.Finally,through an example analysis of the IEEE33 node computing power model,the results show that the proposed evaluation method is more comprehensive and effective.
作者
郝文斌
孟志高
张勇
谢波
彭攀
卫佳奇
HAO Wenbin;MENG Zhigao;ZHANG Yong;XIE Bo;PENG Pan;WEI Jiaqi(Chengdu Power Supply Company,State Grid Sichuan Electric Power Company,Chengdu 610000,China)
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2023年第14期23-33,共11页
Power System Protection and Control
基金
四川省自然科学基金面上项目资助(2022NSFSC0269)
国网四川省电力公司成都供电公司科研项目资助(521904220001)。
关键词
新型配电网
分布式能源
承载能力
评估
组合赋权
new distribution network
distributed generation
carrying capacity
assessment
empowerment methodology
