水力发电学报2025，Vol.44Issue(2)：96-106,11.DOI:10.11660/slfdxb.20250208
共用尾水系统水电机组低频振荡抑制研究
Suppression of low-frequency oscillations in hydropower units of shared tailwater system
摘要
Abstract
To address the problem of low-frequency and ultra-low-frequency oscillations(ULFO)in hydropower unit regulation systems(HURS)with a shared draft tube system(one tunnel,two units),a new control parameter optimization strategy for HURS based on the Improved Salp Swarm algorithm(ISSA)is presented.ISSA enhances search performance by incorporating two improvement frameworks:a cultural gene algorithm and a chaotic sequence,enabling it to explore the optimal solution within the search space.A simulation case study of HURS includes three parts-frequency regulation mode,power regulation mode,and gate opening regulation mode-with a comparative analysis of the simulated responses before and after optimization to validate the feasibility and effectiveness of this optimization method in controlling the HURS parameters of shared draft tube systems.The simulation results show the optimized system reduces the number of oscillations by at least 50%in each regulation mode and significantly improves the operational stability of the units.关键词
水电机组/低频振荡/PID参数优化/樽海鞘算法Key words
hydropower units/low-frequency oscillations/PID parameter optimization/Salp Swarm分类
建筑与水利引用本文复制引用
刘钊,闫震伍,邹屹东,郑阳,肖志怀..共用尾水系统水电机组低频振荡抑制研究[J].水力发电学报,2025,44(2):96-106,11.基金项目
长江电力有限公司科技项目(4223020036) （4223020036）
