Analysis of converter-permanent magnet synchronous machine set by improved average-value modeling

Dc excitation of the field winding in a synchronous machine can be provided bypermanent magnets. permanent magnet synchronous machine (pmsm) can offer simplerconstruction, lower weight and size for the same performance, with reduced losses and higherefficiency. thanks to the mentioned advantages these motors are widely used in differentapplication, therefore analysis and modeling of them, is very important. in this paper a new, fastand simple method is presented to study performance of a pmsm connected to the converter.for this purpose, average-value modeling and related analytical relations which leads to thedesired characteristics such as electromagnetic torque, dc current and dc voltage is presentedand applied to pmsm & converter system. the advantage of this model lie in reduction ofcomputation time compares to the other dynamic models while keeping accuracy quiteacceptable. this model is applicable for studying the steady-state performance of systems aswell as dynamic performance.