Simulation model of induction machines considering time-varying parameters

In the past, because of the limitation of poor numerical analysis methods and tools, the mathematical and simulation models of induction machines were always derived under the assumptions that all the parameters are constant. Unfortunately, such an idealized situation is not met in practice. In this paper, a new C-MEX S-function simulation model of induction machines considering time-varying parameters with the highest accuracy and the quickest simulation speed is created based on the state equation of induction machines, which overcomes the disadvantages of the fixed parameter simulation models available now and the M S-function simulation models. The validity and speediness of the proposed model are verified by simulation experiments in comparison with the MATLAB standard block and an M S-function model. The application example of the proposed model verify the usefulness and effectiveness of it. In fact, this model provides a more accurate and more efficient approximation to actual induction machines.