Title:
INVERTER DEVICE AND PWM SIGNAL CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2013/161159
Kind Code:
A1
Abstract:
An inverter device capable of preventing distortion of a line-to-line voltage on the output side even when PWM control is applied to a power unit by using a general-purpose microcomputer. A duty ratio calculation section (5a) of this device calculates target duty ratios of respective phases on the basis of a motor current value. When the target duty ratio of an arbitrary phase (U-phase) has become an uncontrolled duty ratio (for example, 5% or lower or 95% or higher), a duty ratio correction section (5b) obtains corrected duty ratios by either adding or subtracting a differential duty ratio, that is, the difference between the target duty ratio of the arbitrary phase (U-phase) and a controllable duty ratio (for example, 0% or 100%), to or from the target duty ratios of the other phases (V-phase, W-phase). A PWM output section (5c) applies a PWM signal, which is based on the controllable duty ratio and the corrected duty ratios, to the power unit (3).
More Like This:
| JPS60234488 | CONTROLLER OF AC MOTOR |
| JPH052600 | [Name of device] Inverter device |
| WO/2023/145732 | ELECTRIC MACHINE SYSTEM AND CONTROLLER |
Inventors:
ITANI SATORU
Application Number:
PCT/JP2013/001505
Publication Date:
October 31, 2013
Filing Date:
March 08, 2013
Export Citation:
Assignee:
PANASONIC CORP (JP)
International Classes:
H02P27/06; H02M7/48
Foreign References:
| JP2003348877A | 2003-12-05 | |||
| JPH0549286A | 1993-02-26 | |||
| JPH09140142A | 1997-05-27 | |||
| JPH11146685A | 1999-05-28 |
Other References:
See also references of EP 2843829A4
Attorney, Agent or Firm:
WASHIDA, KIMIHITO (JP)
Koichi Washida (JP)
Koichi Washida (JP)
Download PDF:
Previous Patent: COMMUNICATION SYSTEM, COMMUNICATION LINE SELECTION METHOD, AND PROGRAM
Next Patent: CLEANING DEVICE FOR ELECTRICAL APPLIANCE
Next Patent: CLEANING DEVICE FOR ELECTRICAL APPLIANCE