Depiction and Aggregation for Flexible Regulation Capability of Multi-energy System Considering Nonconvex Operation Characteristics

BAO Shiyuan; LEI Xingyu; ABULIZI Julaiti; YANG Zhifang; YUAN Shaowei; HU Jianmin

doi:10.7500/AEPS20220829005

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Depiction and Aggregation for Flexible Regulation Capability of Multi-energy System Considering Nonconvex Operation Characteristics

Special Topic on Power Balance and Optimal Dispatching Technology for Power System with High Proportion of Renewable Energy | 更新时间：2025-06-16

- Depiction and Aggregation for Flexible Regulation Capability of Multi-energy System Considering Nonconvex Operation Characteristics
- Automation of Electric Power Systems Vol. 47, Issue 15, Pages: 55-66(2023)
- 作者机构：
  
  1.输配电装备及系统安全与新技术国家重点实验室(重庆大学),重庆市 400044
  2.国网乌鲁木齐供电公司,新疆维吾尔自治区乌鲁木齐市 830000
- 作者简介：
- 基金信息：
  
  State Grid Corporation of China(1400-202136216A-0-0-00)
- DOI：10.7500/AEPS20220829005
  CLC：
- Received：29 August 2022，
  
  Revised：2022-11-25，
  
  Published Online：02 March 2023，
  
  Published：10 August 2023
- 稿件说明：
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包诗媛,雷星雨,居来提·阿不力孜等.考虑非凸运行特性的多能源系统灵活调节能力刻画与聚合[J].电力系统自动化,2023,47(15):55-66.

BAO Shiyuan,LEI Xingyu,ABULIZI Julaiti,et al.Depiction and Aggregation for Flexible Regulation Capability of Multi-energy System Considering Nonconvex Operation Characteristics[J].Automation of Electric Power Systems,2023,47(15):55-66.
包诗媛,雷星雨,居来提·阿不力孜等.考虑非凸运行特性的多能源系统灵活调节能力刻画与聚合[J].电力系统自动化,2023,47(15):55-66. DOI： 10.7500/AEPS20220829005.

BAO Shiyuan,LEI Xingyu,ABULIZI Julaiti,et al.Depiction and Aggregation for Flexible Regulation Capability of Multi-energy System Considering Nonconvex Operation Characteristics[J].Automation of Electric Power Systems,2023,47(15):55-66. DOI： 10.7500/AEPS20220829005.

摘要

多能源系统参与电力调度时扩展了可调度资源的边界，有效提升了能源利用效率。为解决多能源系统模型非线性特征导致的协同优化计算难，以及隐私保护和准入门槛要求导致的决策指令下达难的问题，研究了其灵活调节能力替代约束的刻画与聚合方法。首先，针对单个能源子系统模型非凸特性导致的刻画结果可行性保证难题，提出了基于边界面内推修正思想的灵活调节能力内接凸近似域刻画方法。其次，针对多能源系统集群的灵活调节能力聚合计算精度与效率兼顾难题，提出了基于广义奇诺多面体的灵活调节能力高精度有效聚合方法。面向polynomial zonotope形式的广义奇诺多面体，提出了灵活调节能力的变换与反变换策略。最后，仿真结果表明，所提方法保证了替代约束的可行性，且在满足运行调度时间窗要求的前提下大幅提升了计算精度。

Abstract

The boundaries of dispatchable resources are expanded when the multi-energy system participates in power dispatch

which helps improve energy utilization efficiency. To deal with the difficulty in collaborative optimal calculation caused by the nonlinear characteristics of the multi-energy system model

and the difficulty in order issuing caused by the privacy protection and participation threshold

a depiction and aggregation method of replacement constraints for the flexible regulation capability is studied. First

aiming at the difficulty in feasibility assurance caused by the non-convex characteristics of a single energy subsystem

the inscribed convex approximation depiction method of the flexible regulation capability based on the boundary inward modification is proposed. Then

aiming at the difficulty in considering the juggling aggregation calculation accuracy and efficiency of flexibility regulation capability for multi-energy system clusters

the accurate and efficient aggregation method of flexible regulation capability based on generalized zonotopes is proposed. For the polynomial-zonotope-type generalized zonotopes

the transformation and inverse transformation strategy of flexible regulation capability is proposed. Finally

the simulation results show that the proposed method ensures the feasibility of alternative constraints and greatly improves the calculation accuracy on the premise of meeting the requirements of operation dispatch time window.

关键词

Keywords

references

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