典型发电机励磁系统模型参数的确认  

Model Parameters Confirmation of Typical Generator Excitation Systems

作　　者：袁晨 袁训奎 YUAN Chen;YUAN Xunkui(State Grid Pingyin Power Supply Company,Jinan 250400,China;State Grid Shandong Electric Power Research Institute,Jinan 250003,China)

机构地区：[1]国网平阴县供电公司,山东济南250400 [2]国网山东省电力公司电力科学研究院,山东济南250003

出　　处：《山东电力高等专科学校学报》2025年第1期49-53,60,共6页Journal of Shandong Electric Power College

摘　　要：针对典型发电机励磁系统模型参数确认时,用框图描述励磁设备模型结构无法直接求取其传递函数、励磁设备模型与实际不符、模型参数取值不规范和发电机励磁电压基值大于发电机空载额定励磁电压等情况,用解析法求取励磁系统传递函数,根据等量传递原则对不规范模型参数取值进行归并处理,计及励磁机励磁回路压降时求取励磁功率单元等效放大倍数,考虑转子绕组温度时选取励磁电压基值,根据设备实际情况对传递函数进行优化确认,并通过程序仿真证明了其可行性。In view of the facts that the model structure of excitation equipment described by block diagram is unable to obtain its transfer function directly,the model of excitation equipment is not consistent with the reality,the values of model parameters is not standardized and the base value of generator excitation voltage is greater than the no-load rated excitation voltage of generator while confirming the model parameters of typical generator excitation system,the transfer function of the excitation system has been introduced by the analytical method,the irregular values of the parameters of the model have been merged according to the principle of equal transfer,the equivalent amplification factor of excitation power unit has been obtained considering the voltage drop of the excitation circuit of the exciter,the base value of the excitation voltage has been selected considering the temperature of the rotor windings,the transfer function has been optimized and confirmed according to the actual conditions of the equipment,and the feasibility of which has been proved through the program simulation.

关 键 词：励磁系统 模型参数 仿真 

分 类 号：TM621.3[电气工程—电力系统及自动化]