关键词: 发电机组, 励磁系统参数, 力矩特性, 力矩影响

Abstract:

In order to analyze the influences of the excitation system parameters on the moment characteristics of a diesel generator set, with the deviation and linearization method, a dynamic linearization equation of the diesel generator set was deducted.The expressions of the synchronizing torque and damping torque were established. The relation among parameters of the torque linearization equation and parameters of the excitation system was analyzed. The simulation results of the concrete generator set show that when the inductive load grows, the influence of parameters of the excitation system on the synchronizing torque is bigger, but in the steady state the influence of
 parameters of the excitation system on the damping torque is bigger. 

Key words: generator set, excitation system parameter;torque factor, torque influence