Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
POWER CONVERTER
Document Type and Number:
Japanese Patent JP2013251983
Kind Code:
A
Abstract:

To solve such a problem that a voltage change when switching the operation becomes a disturbance to cause resonance, and thereby the vibration of resonance frequency is included in the output waveform, in a power converter where a booster circuit shapes a sine waveform partially.

The power converter includes a step-up chopper circuit 10 outputting a part of AC power, an intermediate stage capacitor C2 which removes high frequency components from the output of the step-up chopper circuit 10, a single-phase inverter circuit 20 which outputs the remaining AC power, a filter circuit 30 which removes high frequency components from the out of the single-phase inverter circuit 20, and a control circuit 40 for controlling operation of the step-up chopper circuit 10 and the single-phase inverter circuit 20. The control circuit 40 controls the step-up chopper circuit 10 and single-phase inverter circuit 20 so as to remove the resonance frequency component unique to the power converter, when they output an AC power.


Inventors:
HIROTA SHOHEI
AMIMOTO TAKESHI
Application Number:
JP2012124840A
Publication Date:
December 12, 2013
Filing Date:
May 31, 2012
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H02M7/48
Domestic Patent References:
JP2002369388A2002-12-20
JP2000152661A2000-05-30
JP2012039827A2012-02-23
JP2000014162A2000-01-14
JPH09117152A1997-05-02
JP2001169567A2001-06-22
JP2008061472A2008-03-13
JP2000152651A2000-05-30
JP2002369388A2002-12-20
JP2000152661A2000-05-30
JP2012039827A2012-02-23
JP2000014162A2000-01-14
JPH09117152A1997-05-02
JP2001169567A2001-06-22
JP2008061472A2008-03-13
JP2000152651A2000-05-30
Attorney, Agent or Firm:
Shogo Takahashi
Tadahiko Inaba
Kanako Murakami



 
Previous Patent: MOTOR

Next Patent: ELECTRIC POWER CABLE LINE