Coordinated Optimization Model for Real-time Fault Response of Diversion-type Cascade Hydropower Stations with Multiple Receiving Ends

LI Jianbing; GU Jiaping; HUANG Shuo; LIANG Chusheng; ZHANG Jiaao; WU Xinyu

doi:10.7500/AEPS20250412002

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Coordinated Optimization Model for Real-time Fault Response of Diversion-type Cascade Hydropower Stations with Multiple Receiving Ends

Engineering Application | 更新时间：2026-02-28

- Coordinated Optimization Model for Real-time Fault Response of Diversion-type Cascade Hydropower Stations with Multiple Receiving Ends
- Automation of Electric Power Systems Vol. 50, Issue 3, Pages: 189-197(2026)
- 作者机构：
  
  1.中国电建集团成都勘测设计研究院有限公司，四川省成都市 610072
  2.大连理工大学水电与水信息研究所，辽宁省大连市 116024
  3.西藏自治区水风光储能源技术创新中心，西藏自治区拉萨市 850000
- 作者简介：
- 基金信息：
  
  Science and Technology Major Project of Xizang Autonomous Region of China(XZ202201ZD0003G)
- DOI：10.7500/AEPS20250412002
  CLC：
- Received：12 April 2025，
  
  Revised：2025-06-26，
  
  Online First：27 October 2025，
  
  Published：10 February 2026
- 稿件说明：
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李建兵,古家平,黄硕等.多受端引水式梯级水电站实时故障响应协同优化模型[J].电力系统自动化,2026,50(3):189-197.

LI Jianbing,GU Jiaping,HUANG Shuo,et al.Coordinated Optimization Model for Real-time Fault Response of Diversion-type Cascade Hydropower Stations with Multiple Receiving Ends[J].Automation of Electric Power Systems,2026,50(3):189-197.
李建兵,古家平,黄硕等.多受端引水式梯级水电站实时故障响应协同优化模型[J].电力系统自动化,2026,50(3):189-197. DOI： 10.7500/AEPS20250412002.

LI Jianbing,GU Jiaping,HUANG Shuo,et al.Coordinated Optimization Model for Real-time Fault Response of Diversion-type Cascade Hydropower Stations with Multiple Receiving Ends[J].Automation of Electric Power Systems,2026,50(3):189-197. DOI： 10.7500/AEPS20250412002.

摘要

引水式梯级水电站按照向同一电网送电的发电单元进行上下游发电水量严格匹配的方式独立运行调度时，只依靠含故障机组发电单元来响应甩负荷，则对应受端电网计划受电和实际受电会出现较大偏差。文中提出了一种梯级水电站在多电网送电需求下的实时协同故障响应模型。该模型以机组故障后向各电网实际输出功率与计划出力之差的平方和最小为目标，以实现实时调度层面的多电网合作，即让多个电网共同承担甩负荷，发挥多电网互济的优势，减小出力总偏差和故障机组所送电网的电力缺口。并基于某引水式梯级水电站实例，对比分析了单电网响应和多电网协同时各电网受电过程，证明了所提方法能够有效降低梯级水电站机组故障甩负荷对电网的冲击。

Abstract

When diversion-type cascade hydropower stations operate and dispatch independently by strictly matching the upstream and downstream power generation water volumes according to the power generation units that transmit electricity to the same power grid

relying solely on the generation group containing the failed generator to respond to load rejection leads to large deviations between the scheduled and actual power intake to the receiving grid. This paper proposes a coordinated real-time fault response model for cascade hydropower stations under the condition of multi-grid power transmission demands. The model aims to minimize the sum of squared deviations between the actual output to each grid after a fault and the scheduled output

enabling multi-grid cooperation at the real-time dispatch level. By sharing the load rejection among multiple power grids through mutual support

the total output deviation and the power shortage in the power grid connected to the faulty unit are reduced. Based on a real case of a diversion-type cascade hydropower station

a comparative analysis is conducted on the power delivery processes under single-grid response and multi-grid collaboration

demonstrating that the proposed approach effectively mitigates the grid impact caused by load rejection due to unit faults.

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