ABSTRACT

While a motor or generator runs at steady state the vast majority of time, it is the brief instant where a transient occurs when most machines fail. This chapter describes an approach based on using MATLAB. By virtue of the auxiliary equations, the flux linkages can be eliminated from Park’s equations and replaced by currents as state variables. The SIMULINK simulation diagram can be assembled by implementing these equations one at a time. Confidence in computed simulation results can only be gained by exhaustive exercising of the algorithm under a multitude of conditions. The features of MATLAB allow a quick and easy way of assessing the machine variables at a steady-state condition. Due to the presence of the field winding, saturation effects in a synchronous machine are much more significant than for an induction machine. In many applications a detailed solution of machine electrical transients is not required and only the electromechanical behavior of the machine is of concern.