基于变速试验的双馈抽水蓄能机组协联寻优策略  

Coordinated Operation Strategy for Doubly-Fed Pumped Storage Unit Based on Variable-Speed Experiments

作　　者：桂中华 赵毅锋 丁景焕 李善颖 严乙桉 马伟超 GUI Zhong-hua;ZHAO Yi-feng;DING Jing-huan;LI Shan-ying;YAN Yi-an;MA Wei-chao(Pumped-storage Technological&Economic Research Institute,State Grid Xinyuan Group Company Limited,Beijing 100053,China;State Grid Jibei Electric Power Economic Research Institute,State Grid Jibei Electric Company Limited,Beijing 100054,China;School of Water Resources and Hydropower Engineering,Wuhan University,Wuhan 430072,China)

机构地区：[1]国网新源控股有限公司抽水蓄能技术经济研究院,北京100053 [2]国网冀北电力有限公司冀北电力科学研究院,北京100054 [3]武汉大学水利水电学院,湖北武汉430072

出　　处：《水电能源科学》2025年第3期168-172,共5页Water Resources and Power

基　　金：国家电网有限公司科技项目(4000-202343080A-1-1-ZN)。

摘　　要：可变速抽水蓄能技术已成为抽水蓄能行业新兴发展与研究方向,双馈抽水蓄能机组可主动调节机组转速,具有运行调节的速动性、高效性和灵活性等优势。为此,提出了一种基于变速试验的双馈抽水蓄能机组协联寻优策略。首先通过变速试验获取3组特征毛水头条件下双馈抽水蓄能机组变速运行数据;然后采用两组BP神经网络对试验数据进行数据概化;最后以最高效率追踪为搜寻目标,考虑变速范围和同步转速规避限制条件,确定了不同毛水头和有功功率运行条件下的最优机组转速和最优导叶开度的协联曲线。可见,所提协联寻优策略可为双馈抽水蓄能机组协联控制与变速运行提供策略指导。Variable-speed pumped storage technology has become an emerging development and research direction.A doubly-fed pumped storage unit has the operating advantages of rapidity,efficiency and flexibility by actively adjusting its speed.This study proposed a coordinated operation strategy for the doubly-fed pumped storage unit based on variable-speed experiments.Firstly,the variable-speed operating data of doubly-fed pumped storage unit under three typical water head conditions was measured based on variable-speed experiments.Then two BP neural networks were employed to generalize the measured experiment data.Finally,the coordinated curves of optimal speed and optimal guide vane opening under various working conditions were determined,the operation aim is tracking the highest hydraulic efficiency of pumped storage unit,and the two limitations of variable-speed range and avoiding synchronous speed were considered.Thus,the proposed strategy can provide guidance for the coordinated control and variable-speed operation for doubly-fed pumped storage units.

关 键 词：抽水蓄能 可变速 特性曲线 协联运行 神经网络 

分 类 号：TV734.1[水利工程—水利水电工程]