Title:
電源回生コンバータ
Document Type and Number:
Japanese Patent JP4924711
Kind Code:
B2
Abstract:
There are provided a smoothing capacitor (71) for storing an induced electromotive force generated by a three-phase induction motor (5), a regenerative transistor (81 to 86) for switching a terminal voltage of the smoothing capacitor to carry out a power regenerating operation over a three-phase AC power supply (3), a line voltage detecting portion (6) for detecting a line voltage of the three-phase AC power supply, a fundamental waveform generating portion (10) for generating, from a signal output from the line voltage detecting portion, a fundamental waveform defined to be a line voltage waveform of the three-phase AC power supply in which a source voltage distortion component is not mixed, a base driving signal creating portion (7) for creating a base driving signal to be used for an ON/OFF control of the regenerative transistor based on a signal output from the fundamental waveform generating portion, and a base driving signal output portion (9) for outputting the base driving signal.
Inventors:
Yoshitomo Hayashi
Akihiko Iwata
Akihiko Iwata
Application Number:
JP2009510661A
Publication Date:
April 25, 2012
Filing Date:
April 10, 2007
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H02P3/18; H02M7/12; H02M7/219; H02M7/797; H02P27/06
Domestic Patent References:
| JP2004180427A | 2004-06-24 | |||
| JPH07107747A | 1995-04-21 |
Foreign References:
| WO2007122701A1 | 2007-11-01 |
Attorney, Agent or Firm:
Shogo Takahashi
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka