Influence of environmental factors on the reliability of electronic components used in motor drive systems

This article discusses the estimated failure rate of electronic components when these are exposed to harsh environment involving vibration, dust, humidity, high temperatures, and others. So, it presents a compilation of the resulting physical-chemical effects upon stressed electronic components, and how such effects can reduce the component life. Also presented here is a compilation of the results of an ample and thorough research of different standards of reliability prediction, making it a critical and comparative analysis between the different techniques, methodologies and applications of each standard studied. Furthermore, for the reader to have a broader understanding of the methodology used in standards, an example is presented of a typical SV-PWM converter used in motor drive systems under different environmental aspects, in order to compare the methods under study.