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Surge propagation and overvoltages for PWM‐inverter‐driven motors
Author(s) -
Moriyasu Shoji,
Okuyama Yoshihiko
Publication year - 2000
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/(sici)1520-6416(20000730)132:2<65::aid-eej8>3.0.co;2-7
Subject(s) - overvoltage , inverter , waveform , surge , transient (computer programming) , electrical engineering , voltage , pulse width modulation , electrical conductor , engineering , computer science , operating system
The use of PWM inverters with high switching characteristics to provide variable frequency supply to motors causes overvoltage with steep‐fronted waveform on the motor terminals. Insulation failure in motor winding can be caused by this steep‐fronted transient voltage in inverter drive systems. From the point of view of wave propagation with the skin effect of cable conductors, these phenomena have not been reported previously. The main purpose of this paper to describe the exact surge propagation considering the skin effect of cable conductors and the wave deflections at inverter and motor terminals. © 2000 Scripta Technica, Electr Eng Jpn, 132(2): 65–72, 2000