Electricity: motive power systems – Induction motor systems – Primary circuit control
Reexamination Certificate
2006-09-12
2006-09-12
Ip, Paul (Department: 2837)
Electricity: motive power systems
Induction motor systems
Primary circuit control
C318S801000, C363S041000
Reexamination Certificate
active
07106025
ABSTRACT:
Methods and apparatus for canceling dead time effects in the form of common mode voltages produced by a three-phase power conversion device in a rectifier/inverter variable frequency drive (VFD) system includes limiting the voltage difference between phase voltages at certain switching transition times to an amount δ, that is a function of the dead time that is specified for the switches and delaying gating signals to the switches to remove unexpected pulses produced by common mode voltages.
REFERENCES:
patent: 5013985 (1991-05-01), Itoh et al.
patent: 5099408 (1992-03-01), Chen et al.
patent: 5623192 (1997-04-01), Yamamoto
patent: 5633788 (1997-05-01), Tanaka et al.
patent: 6023417 (2000-02-01), Hava et al.
patent: 6324085 (2001-11-01), Kimura et al.
patent: 6819070 (2004-11-01), Kerkman et al.
patent: 2001/0015904 (2001-08-01), Kimura et al.
patent: 2004/0037097 (2004-02-01), Deng et al.
patent: 2004/0160207 (2004-08-01), Kerkman et al.
patent: 2005/0163237 (2005-07-01), Katanaya
patent: 2005/0174076 (2005-08-01), Katanaya
patent: 2006/0091833 (2006-05-01), Kitajima et al.
Yen-Shin Lai, Fu-San Shyu, “Optimal Common-Mode Voltage Reduction PWM Technique for Inverter Control With Consideration of the Dead-Time Effects-Part I: Basic Development”, IEEE IAS Annual Meeting, 2003.
Yen-Shin Lai, Fu-San Shyu, “Optimal Common-Mode Voltage Reduction PWM Technique for Inverter Control With Consideration of the Dead-Time Effects-Part II: Applications to IM Drives With Diode Front End”, IEEE IAS Annual Meeting, 2003.
Kerkman Russel J.
Lukaszewski Richard A.
Yin Qiang
Ip Paul
Quarles & Brady LLP
Rockwell Automation Technologies Inc.
Walbrun William R.
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