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A Ringing Surge Clamper Type Active Auxiliary Edge-Resonant DC Link Snubber-Assisted Three-Phase Soft-Switching Inverter using IGBT-IPM for AC Servo Driver  

Yoshitsugu, Junji (Industrial Solution Division, Yaskawa Siemens Automation & Drives Corp.)
Yoshida, Masanobu (Electrical and Electronics Engineering, Yamaguchi University)
Hiraki, Eiji (Electrical and Electronics Engineering, Yamaguchi University)
Inoue, Kenji (Engineering Aerospace Equipment Engineering Department, Shinko Electric Co., Ltd.)
Ahmed, Tarek (Electrical and Electronics Engineering, Yamaguchi University)
Nakaoka, Mutsuo (Electrical and Electronics Engineering, Yamaguchi University)
Publication Information
KIEE International Transaction on Electrical Machinery and Energy Conversion Systems / v.2B, no.3, 2002 , pp. 115-124 More about this Journal
Abstract
This paper presents an active auxiliary edge-resonant DC link snubber with a ringing surge damper and a three-phase voltage source type zero voltage soft-switching inverter with the resonat snubber treated here for the AC servo motor driver applications. The operation of the active auxiliary edge-resonant DC link snubber circuit with PWM voltage is described, together with the practical design method to select its circuit parameters. The three-phase voltage source type soft-switching inverter with a single edge-resonant DC link snubber treated here is evaluated and discussed for the small-scale permanent magnet (PM) type-AC servo motor driver from an experimental point of view. In addition to these, the AC motor stator current and its motor speed response for the proposed three-phase soft-switching inverter employing Intelligent Power Module(IPM) based on IGBTS are compared with those of the conventional three-phase hard-switching inverter using IPM. The practical effectiveness of the three-phase soft-switching inverter-fed permanent magnet type AC motor speed tracking servo driver is proven on the basis of the common mode current in a novel type three-phase soft-switching inverter-fed AC motor side and the conductive noise on the mains terminal interface voltage as compared with those of the conventional three-phase hard-switching inverter-fed permanent magnet type AC servo motor driver for the speed tracking applications.
Keywords
edge-resonant dc link snubber with surge clipper; three-phase voltage source soft-switching inverter; IPM(Intelligent Power Module); permanent magnet type ac servo motor driver; common mode leak current reduction; lowered mains terminal interference voltage;
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