Review of fault modeling methods for permanent magnet synchronous motors and their comparison

Modeling of Permanent Magnet Synchronous Motors (PMSM) is required for the mathematical representation of the machine in order to analyze the behaviour of the machine under different operating conditions. This paper gives a detailed study of various fault modeling methods of PMSMs and their comparison in terms of accuracy and computational time. Based on a thorough review, the fault modeling methods are classified into Electrical Equivalent Circuit (EEC) based methods, Magnetic Equivalent Circuit (MEC) based methods and Numerical Methods (NMs). This paper describes an in-depth study and analysis for each of the modeling methods and further summarizes them into a comparative study. It also draws an inference about methods which are preferable for different types of faults.