接力器开关速度影响因素仿真分析  

Simulation and Analysis of Factors Influencing Servomotor Speed

作　　者：杨聚伟 胡立昂 李青楠 陈启明 李长胜 曹永闯 杨恒乐 黄鑫 YANG Juwei;HU Li’ang;LI Qingnan;CHEN Qiming;LI Changsheng;CAO Yongchuang;YANG Hengle;HUANG Xin(Henan Tianchi Pumped Storage Co.,Ltd.,Nanyang,210003,China;Wuhan Sichuang Automatic Control Technology Co.Ltd.,Wuhan,430065,China)

机构地区：[1]河南天池抽水蓄能有限公司,河南省南阳市210003 [2]武汉四创自动控制技术有限责任公司,湖北省武汉市430065

出　　处：《水电与抽水蓄能》2024年第4期79-83,共5页Hydropower and Pumped Storage

基　　金：国网新源集团有限公司(国网新源控股有限公司)科技项目“抽水蓄能电厂调速器液压部分设备状态检测系统研究及应用”(SGXYKJ-2023-88)。

摘　　要：正确整定水轮机接力器的关机与开机规律是保障水电站安全的重要措施。实际工程中多次出现接力器关闭规律偏离整定的情况,为分析原因本文通过对水轮机调速器液压放大系统原理分析,建立了液压放大系统的精细数学模型;基于所建模型与实际电站参数,仿真分析了影响接力器速度特性的主要因素。结果表明水对导叶的作用力和接力器的内漏对接力器的开关机时间有显著的影响。在整定接力器开关机规律时应考虑水对导叶作用力的影响。Correctly setting the closure law and start-up law of the servomotor of the hydraulic turbine is an important measure to ensure the safety of hydro power stations.It is a common phenomenon in practical engineering that the closing law of the relay deviates from the setting.To analyze the reasons,this paper analyze the principle of the hydraulic amplification system of the water turbine governor and establishes a precise mathematical model of the hydraulic amplification system of the hydro turbine governor.Based on the established model and actual power plant parameters,the main factors affecting the speed characteristics of the servomotor were simulated and analyzed.The results indicate that the force of water on the guide vanes and the internal leakage of the servomotor have a significant impact on the open time and close time of the servomotor.When setting the closure law of the servomotor,the influence of water force acting on the guide vanes should be considered.

关 键 词：接力器 关机时间 导叶 调速器 

分 类 号：TV734.1[水利工程—水利水电工程]