Collaborative expansion planning of integrated electricity-water system with seawater desalination plants considering reliability

Liu Yang; Li Chunyan; Tang Jiyuan; Xie Kaigui; Hu Bo

doi:10.16081/j.epae.202605020

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Collaborative expansion planning of integrated electricity-water system with seawater desalination plants considering reliability

ANALYSIS AND RESEARCH | 更新时间：2026-06-29

- Collaborative expansion planning of integrated electricity-water system with seawater desalination plants considering reliability
- Electric Power Automation Equipment Vol. 46, Issue 7, Pages: 27-36(2026)
- 作者机构：
  
  重庆大学输变电装备技术全国重点实验室，重庆 400044
- 作者简介：
- 基金信息：
  
  the National Natural Science Foundation of China(52177073);the Fundamental Research Funds for the Central Universities(2023CDJKYJH045)
- DOI：10.16081/j.epae.202605020
  CLC： TM73;TK01
- Received：28 November 2024，
  
  Revised：2025-04-23，
  
  Online First：08 June 2026，
  
  Published：10 July 2026
- 稿件说明：
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刘杨,李春燕,汤佶元等.计及可靠性的含海水淡化厂电-水综合系统协同扩容规划[J].电力自动化设备,2026,46(07):27-36.

Liu Yang,Li Chunyan,Tang Jiyuan,et al.Collaborative expansion planning of integrated electricity-water system with seawater desalination plants considering reliability[J].Electric Power Automation Equipment,2026,46(07):27-36.
刘杨,李春燕,汤佶元等.计及可靠性的含海水淡化厂电-水综合系统协同扩容规划[J].电力自动化设备,2026,46(07):27-36. DOI： 10.16081/j.epae.202605020.

Liu Yang,Li Chunyan,Tang Jiyuan,et al.Collaborative expansion planning of integrated electricity-water system with seawater desalination plants considering reliability[J].Electric Power Automation Equipment,2026,46(07):27-36. DOI： 10.16081/j.epae.202605020.

摘要

为了揭示电力系统、水系统之间的复杂耦合关系及其可靠性对电-水综合系统（IEWS）扩容规划的影响，提出一种计及可靠性的IEWS协同扩容规划方法，以保障系统安全、可靠。根据IEWS的运行机理，考虑电-水耦合关系对IEWS扩容规划的影响，建立计及可靠性的IEWS协同扩容规划模型；采用马尔可夫链蒙特卡罗模拟法计算可靠性指标，并在对元件状态进行抽样时同时考虑电力系统、水系统元件的随机故障；基于Benders分解方法，将协同扩容规划模型分解为投资运行主问题、可靠性子问题，通过子问题与主问题的反复迭代实现模型求解，所得扩容规划方案不仅可以保障IEWS的可靠性，还能最小化投资成本与运行成本之和。对2个不同规模的IEWS进行仿真分析，验证所提模型及评估方法的有效性和适应性。

Abstract

In order to reveal the complex coupling relationship between the power system and the water system，and the influence of their reliability on the expansion planning of the integrated electricity-water system（IEWS），a collaborative expansion planning method of IEWS considering reliability is proposed to ensure the safety and reliability of the system. According to the operation mechanism of IEWS，considering the influence of electricity-water coupling relationship on the expansion planning of IEWS，a collaborative expansion planning model of IEWS considering reliability is established. The Markov chain Monte Carlo simulation method is adopted to calculate the reliability indicators，and the the component states are sampled simultaneously considering the random failures of power system and water system. Based on the Benders decomposition method，the collaborative expansion planning model is decomposed into the main investment and operation problem and the reliability sub-problem. Through the repeated iterations between the sub-problem and the main problem，the model is solved，and the obtained expansion planning scheme can not only ensure the reliability of IEWS，but also minimize the sum of investment cost and operation cost. The validity and applicability of the proposed model and evaluation method are verified by the simulation analysis of two IEWSs with different scales.

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references

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