Analytical Method for Defense Capability of Large-scale Cascade Hydropower Stations Against Extreme Fluctuations of Renewable Energy in Power Grid

ZHANG Juntao; CHENG Chuntian; CAO Hui; CAI Huaxiang

doi:10.7500/AEPS20240521006

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Analytical Method for Defense Capability of Large-scale Cascade Hydropower Stations Against Extreme Fluctuations of Renewable Energy in Power Grid

Risk Assessment of Electricity Power Balance and Improvement of Power Protection Capability of New Power System Under Extreme Weather Conditions | 更新时间：2025-06-16

- Analytical Method for Defense Capability of Large-scale Cascade Hydropower Stations Against Extreme Fluctuations of Renewable Energy in Power Grid
- Automation of Electric Power Systems Vol. 49, Issue 4, Pages: 53-64(2025)
- 作者机构：
  
  1.大连理工大学水电与水信息研究所，辽宁省大连市 116024
  2.三峡水利枢纽梯级调度通信中心，湖北省宜昌市443002
  3.昆明电力交易中心有限责任公司，云南省昆明市 650011
- 作者简介：
- 基金信息：
  
  China National Postdoctoral Program for Innovative Talents(BX20230055);National Natural Science Foundation of China(52239001)
- DOI：10.7500/AEPS20240521006
  CLC：
- Received：21 May 2024，
  
  Revised：2024-08-03，
  
  Published Online：04 November 2024，
  
  Published：25 February 2025
- 稿件说明：
移动端阅览
张俊涛,程春田,曹辉等.巨型梯级水电站对电网新能源极端波动的防御能力分析方法[J].电力系统自动化,2025,49(4):53-64.

ZHANG Juntao,CHENG Chuntian,CAO Hui,et al.Analytical Method for Defense Capability of Large-scale Cascade Hydropower Stations Against Extreme Fluctuations of Renewable Energy in Power Grid[J].Automation of Electric Power Systems,2025,49(4):53-64.
张俊涛,程春田,曹辉等.巨型梯级水电站对电网新能源极端波动的防御能力分析方法[J].电力系统自动化,2025,49(4):53-64. DOI： 10.7500/AEPS20240521006.

ZHANG Juntao,CHENG Chuntian,CAO Hui,et al.Analytical Method for Defense Capability of Large-scale Cascade Hydropower Stations Against Extreme Fluctuations of Renewable Energy in Power Grid[J].Automation of Electric Power Systems,2025,49(4):53-64. DOI： 10.7500/AEPS20240521006.

摘要

由于汛枯期工况的差异，复杂的水力、电力联系，以及防洪、生态、通航等综合利用需求，如何评估千万千瓦级巨型梯级水电站对新能源持续多日极端波动的防御能力是亟待解决的难题。首先，提出了新能源极端波动解析表征方法，从电网多年历史数据中提取了极端波动样本，揭示了风光极端波动特性。基于此，建立了梯级水电站对新能源极端波动防御能力的扰动优化评估模型，并采用0-1混合整数线性化建模技术实现了模型高效求解。以中国西南某省电网某流域梯级水电站为应用实例，分析了梯级水电站对新能源极端波动的防御能力及其对新能源装机发展水平的敏感性，结果可为极端天气下电网电力电量平衡调度提供指导。

Abstract

Due to the differences in operation conditions during dry and wet seasons

complex relations between water power and electric power

and comprehensive utilization demands such as flood control

ecology

navigation and so on

it is difficult to solve how to evaluate the defense capability of 10 GW-level large-scale cascade hydropower stations against long-period extreme fluctuations of renewable energy. First

the analytical characterization method of extreme fluctuations of renewable energy is proposed

and the extreme fluctuation events are mined from the historical data so that the characteristics of wind power-photovoltaic extreme fluctuations can be revealed. On this basis

a perturbation optimization evaluation model of defense capability of cascade hydropower plants against extreme fluctuations of renewable energy is established. The 0-1 mixed-integer linearization modeling technique is adopted to efficiently solve the mathematical model. Taking a river basin cascade hydropower stations station of a Southwest provincial power grid in China as an application case

the defense capability of cascade hydropower stations against extreme fluctuations of renewable energy and its sensitivity to the renewable energy installed capacity are analyzed

and the results can provide guidance for electric power and energy balance scheduling under extreme weather in power grid.

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references

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