综合智慧能源 ›› 2024, Vol. 46 ›› Issue (2): 43-48.doi: 10.3969/j.issn.2097-0706.2024.02.006

• 市场研究与潮流分析 • 上一篇    下一篇

基于增量交换的主动配电网分布式多目标最优潮流

陆文甜()   

  1. 广州大学 机械与电气工程学院,广州 510006
  • 收稿日期:2023-05-06 修回日期:2023-10-23 出版日期:2024-02-25 发布日期:2024-03-06
  • 作者简介:陆文甜(1990),女,副教授,博士,从事电力系统智能化调度和运行控制方面的研究,hnlgtiantian@163.com
  • 基金资助:
    国家自然科学基金项目(52107093)

Increment-exchange-based decentralized multi-objective optimal power flow algorithm for active distribution grids

LU Wentian()   

  1. School of Mechanical and Electrical Engineering,Guangzhou University ,Guangzhou 510006,China
  • Received:2023-05-06 Revised:2023-10-23 Online:2024-02-25 Published:2024-03-06
  • Supported by:
    National Natural Science Foundation of China(52107093)

摘要:

接入高比例可再生能源的主动配电系统,配电网络运营商和能源运营商之间存在竞争与合作的复杂利益关系。为了提高分布式能源利用率,提出了一种基于增量交换的分布式多目标最优潮流(MO-OPF)算法。在MO-OPF模型中,网络运营商和能源运营商分布追求自己的运营目标,同时确保整个网络的电压和支路功率安全限制得到满足。该算法能够以分散的方式求解MO-OPF问题,而不会向网络运营商暴露任何能源运营商的私有信息。其核心思想是利用耦合变量增量的二次函数来描述能源运营商对网络运营商的影响,网络运营商通过求解累积二次规划问题来计算耦合变量的增量。以IEEE 33节点配电系统为例,验证所提方法不仅可以提供与使用集中式优化相同的帕累托最优解,而且具有电压调节能力。

关键词: 分布式多目标优化, 主动配电网, 最优潮流, 可再生能源, 增量交换

Abstract:

With the access of high-proportion renewable energy to active distribution systems,the benefit allocation and competition between distribution network operators and energy system operators are complex. To increase the utilization rate of distributed energy resources, an increment-exchange-based decentralized multi-objective optimal power flow(MO-OPF)algorithm for distribution grids is proposed. During the solving of an MO-OPF model, network operators and multi-energy system operators will pursue their own operation objectives, while satisfying the voltages and branch power limits throughout the power grid. Since the proposed algorithm is decentralized,it can solve MO-OPF problems without exposing any private information of energy system operators to network operators. The core of the algorithm is to describe the impact of energy system operators on network operators with quadratic functions of coupling variables increments, which are obtained by network operators through accumulated quadratic programming. The case study on an IEEE 33-bus distribution system is carried out to demonstrate that the proposed algorithm can not only provide the Pareto optimal solution as the centralized optimization model does, but can also regulate the system voltage.

Key words: decentralized multi-objective optimization, active distribution network, optimal power flow, renewable energy, increment exchange

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