Fault simulation of asynchronous induction motor based on EMTDC

The three-phase asynchronous induction motor models in EMTDC are deduced and the solution algorithms of induction motor transient process are introduced.Different fault types of common induction motor are simulated based on EMTDC,including single phase grounding,open circuit and mechanical rotor blocking.Their characteristic waveforms are introduced and the quantitative error-analysis is presented.The effectiveness and correctness of models and algorithms of induction moto r in EMTDC are verified by the results,which provides an effective simulation platform for the further fault diagnosis and protection study of induction motors.This project is supported by Natural Science Foundation of Guangdong(990579).