Title:
PWM CYCLOCONVERTER AND METHOD FOR CONTROLLING THE SAME
Document Type and Number:
WIPO Patent Application WO/2005/119893
Kind Code:
A1
Abstract:
A PWM cycloconverter that can compensate for the error between a voltage command generated in response to a commutation and a real voltage. The PWM cycloconverter comprises an input voltage phase detector (6) for detecting the voltage phase of a three-phase AC power supply (1); a current direction detector (7) for detecting the direction of a current flowing through a bidirectional semiconductor switch (3); and a commutation compensator (11) for receiving the outputs from the input voltage phase detector and current detector to compensate for the voltage command.
Inventors:
YAMAMOTO EIJI
HARA HIDENORI
EGUCHI KOUICHI
HARA HIDENORI
EGUCHI KOUICHI
Application Number:
PCT/JP2005/009986
Publication Date:
December 15, 2005
Filing Date:
May 31, 2005
Export Citation:
Assignee:
YASKAWA DENKI SEISAKUSHO KK (JP)
YAMAMOTO EIJI
HARA HIDENORI
EGUCHI KOUICHI
YAMAMOTO EIJI
HARA HIDENORI
EGUCHI KOUICHI
International Classes:
H02M5/293; H02M5/297; (IPC1-7): H02M5/297
Foreign References:
| JP2003309975A | 2003-10-31 | |||
| JPH09154280A | 1997-06-10 | |||
| JP2003333851A | 2003-11-21 | |||
| JPH10225142A | 1998-08-21 | |||
| JPH05316737A | 1993-11-26 |
Attorney, Agent or Firm:
Oguri, Shohei (7-13 Nishi-Shimbashi 1-chom, Minato-ku Tokyo 03, JP)
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