Transient states simulation in power plant auxiliary electrical system

The paper presents a mathematical model of large power induction motor. The purpose of the proposed model is an analysis of multi-motor system supplied by auxiliary electrical system of power plant. Non-linear model takes into consideration saturation effect and deep-bar effect. Apparent form of model equations simplifies the structure of algorithm and shortens time of calculations. The model keeps two-circuit structure of induction motor model with constant parameters. Results of simulation compared with measurements are presented.