• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

电力建设 ›› 2022, Vol. 43 ›› Issue (11): 53-62.doi: 10.12204/j.issn.1000-7229.2022.11.006

• 新型电力系统下配电网规划与运行优化关键技术研究及应用·栏目主持 王守相教授、赵倩宇博士· • 上一篇    下一篇

考虑风光与负荷时序特性的主动配电网分布式电源优化配置

初壮(), 孙健浩(), 赵蕾(), 孙旭()   

  1. 东北电力大学电气工程学院,吉林省吉林市 132012
  • 收稿日期:2022-04-07 出版日期:2022-11-01 发布日期:2022-11-03
  • 通讯作者: 孙健浩 E-mail:chuzhuang@hotmail.com;2295269596@qq.com;zhaolei321666@163.com;623004587@qq.com
  • 作者简介:初壮(1973),男,博士,副教授,硕士生导师,主要研究方向为电力系统优化运行、配电网计算分析,E-mail: chuzhuang@hotmail.com;
    赵蕾(1999),女,硕士研究生,主要研究方向为综合能源系统优化调度,E-mail: zhaolei321666@163.com;
    孙旭(1997),女,硕士研究生,主要研究方向为配电网优化调度,E-mail: 623004587@qq.com
  • 基金资助:
    国家自然科学基金项目(51977030)

Optimal Configuration of Distributed Power Generation in Active Distribution Network Considering the Characteristics of Wind Power and Load Time Series

CHU Zhuang(), SUN Jianhao(), ZHAO Lei(), SUN Xu()   

  1. College of Electrical Engineering,Northeast Electric Power University, Jilin 132012, Jilin Province, China
  • Received:2022-04-07 Online:2022-11-01 Published:2022-11-03
  • Contact: SUN Jianhao E-mail:chuzhuang@hotmail.com;2295269596@qq.com;zhaolei321666@163.com;623004587@qq.com
  • Supported by:
    National Natural Science Foundation of China(51977030)

摘要:

主动配电网中分布式电源优化配置时,风光机组出力与负荷时序波动特性使场景过多,这既会增加模型求解的难度,也会影响优化配置结果。为此,首先引入戴维森堡丁指数(Davies-Bouldin index,DBI)结合K-means算法对全小时场景进行聚类缩减。然后,建立考虑风光与负荷时序特性的主动配电网双层优化配置模型,上层以系统年综合经济成本最优为目标,决策变量为风光机组接入配电网的位置及容量;下层以系统各时段运行电压水平最优为目标,决策变量为配电网主动管理措施下的运行成本;综合考虑风光机组时序出力和负荷侧时序响应,实现主动配电网分布式电源优化规划。最后,采用改进的自适应遗传算法对模型进行求解。IEEE 33节点系统算例表明,所提方法及模型在确保场景选取的多样性和合理性的同时,兼顾了风光机组出力与负荷时序波动特性,提高了系统运行水平,降低了系统运行成本。

关键词: 时序特性, 分布式电源, 自适应遗传算法, 戴维森堡丁指数(DBI), 双层优化配置模型

Abstract:

In the optimal configuration of distributed generation in active distribution network, the output and load timing fluctuation characteristics of wind power cause too many scenes, which will not only increase the difficulty of model solution, but also affect the optimal configuration results. For this reason, this paper first introduces Davies-Bouldin index (DBI) and K-means algorithm to cluster and reduce the full-hour scenes. Secondly, a two-level optimal allocation model of active distribution network considering the time series characteristics of wind power and load is established. The upper layer aims to optimize the annual comprehensive economic cost of the system, and the decision variables are the locations and capacities of wind power units connected to the distribution network; The lower level takes the optimal operation voltage level of the system in each period as the objective, and the decision variables are the operation costs under the active management measures of the distribution network; Considering the time sequence outputs of wind power and the time sequence response of load sides, the economic planning of distributed generation in active distribution network is realized. Finally, an improved adaptive genetic algorithm is used to solve the model. The IEEE 33-node system example shows that the proposed method and model not only ensures the diversity and rationality of scenario selection, but also takes into account the wind power output and load timing fluctuation characteristics, and improves the system operation level and reduce the system operation cost.

Key words: timing characteristics, distributed generation, adaptive genetic algorithm, Davies-Bouldin index(DBI), bi-level optimal allocation mode

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