测量同步电机转子时间常数新方法的探究  

New method for measuring time constant of synchronous motor rotor

作　　者：罗腾[1] 贾威[1] 杨朝廷 刘修懿 LUO Teng;JIA Wei;YANG Chaoting;LIU Xiuyi(Xiluodu Hydropower Plant,China Yangtze Power Co.,Ltd,Yongshan 657300,China)

机构地区：[1]中国长江电力股份有限公司溪洛渡水力发电厂,云南永善657300

出　　处：《水力发电学报》2022年第11期79-85,共7页Journal of Hydroelectric Engineering

摘　　要：同步发电机转子时间常数在发电机励磁系统建模过程中具有重要的意义,励磁系统的动态响应特性、起励时间、逆变时间、电力系统稳定器的补偿效果等均与此参数有关。现有的同步发电机转子时间常数测量方法或多或少存在些许的局限性与不便性。本文提出并探讨了一种新的同步发电机时间常数测量方法,通过原理分析证明了方法的可行性,通过仿真对比校核了该方法的测量精度。该方法相较于现有方法有其特有的便捷性及安全性,对工程试验人员来说提供了一种新的选择及参考。The rotor time constant of a synchronous generator plays a key role in the modeling of the generator excitation system;dynamic response characteristics,starting time and inverter time,along with the compensation effect of the power system stabilizer,are all related to this parameter.The previous measurement methods of this constant are more or less limited and inconvenient.This paper develops a new method for its measurement,and discusses the feasibility through analysis of the measuring principle.This method and its measuring accuracy are verified and compared with numerical simulations and the existing methods,showing its convenience and reliability for engineering application as a new choice.

关 键 词：转子时间常数 励磁 建模 封脉冲 特定控制角 

分 类 号：TM622[电气工程—电力系统及自动化]