Premium
Influence of High‐Frequency Leakage Current on Motor Position Control in PWM Inverter‐Fed Servo Drives
Author(s) -
Tagami Kotaro,
Ogasawara Satoshi
Publication year - 2013
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/eej.22479
Subject(s) - emi , leakage (economics) , electrical engineering , inverter , electromagnetic interference , engineering , pulse width modulation , converters , electronic engineering , power (physics) , voltage , physics , economics , macroeconomics , quantum mechanics
Summary Advances in power semiconductor devices have contributed to the realization of high‐performance power converters and high‐precision motor positioning. However, high‐speed switching of power devices leads to a high‐frequency leakage current and/or electromagnetic interference ( EMI ). On the other hand, it has been considered that the leakage current has no relation to motor position control in servo drive systems. This paper analyzes the influence of high‐frequency leakage current on motor positioning and describes its mechanism. Experimental and simulation results show that high‐frequency leakage current may cause variations in the motor position with a frequency that is twice the line frequency. © 2013 Wiley Periodicals, Inc. Electr Eng Jpn, 185(4): 33–43, 2013; Published online in Wiley Online Library ( wileyonlinelibrary.com ). DOI 10.1002/eej.22479