Title:
HARMONIC CONTROL CIRCUIT AND MOTOR DRIVE SYSTEM
Document Type and Number:
Japanese Patent JP3959481
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a harmonic control circuit which can control a harmonic current to a level of fulfilling harmonic regulation by improving the power factor of a power source in a multiphase AC power source.
SOLUTION: This harmonic control circuit is equipped with a rectifier which is connected to an AC power source and rectifies an AC from the AC power source into a DC, a reactor which is connected to each power line between the AC power source and the rectifier, a smoothing capacitor which is connected between output terminals of a DC voltage of the rectifier and smooths the DC voltage, and a plurality of capacitors one end of each of which is connected to each power line connecting the reactor with the rectifier and the other ends of which are connected in common to form the neutral point of the AC power source.
Inventors:
Shinya Nishida
Yosuke Shinomoto
Mamoru Kawakubo
Yosuke Shinomoto
Mamoru Kawakubo
Application Number:
JP2002082985A
Publication Date:
August 15, 2007
Filing Date:
March 25, 2002
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H02M7/06; H02M7/12; (IPC1-7): H02M7/06; H02M7/12
Domestic Patent References:
| JP2001268913A | ||||
| JP2001204173A | ||||
| JP2001224178A |
Attorney, Agent or Firm:
Shogo Takahashi
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka