考虑DG无功调节和不确定性的配电网新能源消纳容量评估  

Evaluation of New Energy Consumption Capacity in Distribution NetworksConsidering DG Reactive Power Regulation and Uncertainty

作　　者：张骁 郑舒 蒋国栋[1,2] Zhang Xiao;Zheng Shu;Jiang Guodong(State Grid Electric Power Research Institute Co.,Ltd.,Nanjing Jiangsu 211106,China;NARI Technology Co.,Ltd.,Nanjing Jiangsu 211106,China)

机构地区：[1]国网电力科学研究院有限公司,江苏南京211106 [2]国电南瑞科技股份有限公司,江苏南京211106

出　　处：《电气自动化》2024年第3期12-17,共6页Electrical Automation

基　　金：国家重点研发计划项目“配电网智能设备的通用性即插即用关键技术”(2021YFB2401303)。

摘　　要：为充分考虑分布式电源不确定性和控制多样性对配电网运行的影响,提出了一种考虑分布式电源无功调节和不确定性配电网新能源消纳容量的评估方法。首先分析了分布式电源对配电网电压分布的影响、分布式电源无功调节能力以及分布式电源出力的不确定模型;其次,以最大化新能源消纳容量和最小网损为优化目标,以计及分布式电源无功调节和不确定性的有功-无功作为重要约束,建立配电网新能源消纳容量评估模型;然后,以分布式电源和无功补偿装置的出力为优化变量,通过快速非支配排序遗传算法进行求解,实现了新能源消纳容量的准确评估;最后通过应用实例进行验证。结果表明,所提评估方法实现了配电网新能源消纳容量的可靠评估。In order to fully consider the impact of uncertainty and control diversity of distributed power generation on the operation of distribution networks,an evaluation method for the new energy consumption capacity of distribution networks considering reactive power regulation and uncertainty of distributed power generation was proposed.Firstly,the impact of distributed power generation on the voltage distribution of the distribution network,the reactive power regulation ability of distributed power generation,and the uncertainty model of distributed power generation output were analyzed;secondly,with the optimization objectives of maximizing the new energy consumption capacity and minimizing network losses,and taking into account the active reactive power regulation and uncertainty of distributed power generation as important constraints,an evaluation model for the new energy consumption capacity of the distribution network was established;then,using the output of distributed power generation and reactive power compensation devices as optimization variables,a fast non dominated sorting genetic algorithm was used to solve the problem,achieving accurate evaluation of new energy consumption capacity;finally,the verification was conducted through application examples.The results indicate that the proposed evaluation method achieves reliable evaluation of the new energy consumption capacity of distribution networks.

关 键 词：分布式电源 无功调节 不确定性 配电网 消纳容量 

分 类 号：TM72[电气工程—电力系统及自动化]