Study on Influence of Excitation System Parameters on Transient Characteristics of Power Units

The engine excitation control system has significant effect on the static stability, dynamic stability and transient stability of the power system. In power system stability calculation, the model and parameters are used to correct the excitation system. Excitation system parameters are numerous, such as the excitation time constant, the static gain of the excitation time constant, the static gain of the excitation system, the PID time constant, the open circuit time constant of the generator excitation windings, etc. The influence of the above parameters on the transient characteristics of the generator set is studied in the case of a three machine system in Hubei province. The research results will provide reference for the optimal of the parameters of the excitation system model.