【作者】 王正风； 黄太贵； 毕天姝；

【Author】 WANG Zheng-feng1,HUANG Tai-gui1,BI Tian-shu2(1.Anhui Electrical Power Dispatching & Communication Center,Hefei 230022,China)(2.North China Electric Power University,Changping District,Beijing 102206,China)

【机构】 安徽电力调度通信中心； 华北电力大学；

【摘要】 针对同步发电机离线参数测量方法不能精确反映发电机运行特性,提出利用相量测量装置PMU实现对发电机运行参数的实时采集,从而实现发电机运行时参数的在线参数辨识。阐述了同步发电机5阶、3阶以及2阶数学模型及参数表示的物理含义;提出了利用PMU实时采集发电机机端电压、电流以及励磁电压、电流,在WAMS系统主站利用GA算法实现对发电机参数的在线辨识。辨识结果证明了发电机参数在线辨识的可行性和有效性,具有较高的理论价值和实际价值。更多还原

【Abstract】 Off-line parameter measurement for synchronous generator can not show operation character of synchronous generator.It is presented that on-line parameter estimation of synchronous generator can be realized based on PMU which can collect real time date.Physics meaning is expatiated for mathematical model of synchronous generator include the 2-order,3-order and 5-order.Generator voltage,generator current,field voltage and field current can be collected by PMU.So,on-line parameter estimation of synchronous generator can be achieved by GA arithmetic.The feasibility and validity of on-line parameter estimation for synchronous generator is improved by example.It is indicated that on-line parameter estimation of synchronous generator has good value of theory and practicality is high.更多还原