Author(s)

Wang Xiaoming, Zhou Wei

Corresponding Author

Wang Xiaoming

ABSTRACT

The precise generator parameters can provide some necessary data support for the stability analysis and safe operation, in order to further improve the level of the safe and stable operation of power system, the generator parameters measurement and identification is particularly important. The load rejection method is a practical way for measuring generator parameters, it is one of the most common method by using the graphical method or curve fitting method to identify the parameters of the generator, but the graphical method is greatly influenced by load rejection process of interference, the identification parameters is not accurate. To improve effectively the identification accuracy of parameters, a method of identification synchronous generator parameters based on load rejection test and the PSD-BPA simulation is raised, the experimental data of direct axis and quadrature axis are acquired by load rejection test, then the simulation model is established and it is the same as the load rejection test actually, the generator parameters are identifying by simulation result compared with the field test results, this method considers the field current changes in the process of load rejection and overcome the deficiency of the graphical method, it has improved the accuracy effective of the parameters identification .

KEYWORDS

Synchronous generator,load rejection method,Graphical method,Parameters identification,PSD-BPA