Title:
MOTOR INVERTER
Document Type and Number:
Japanese Patent JP2014155238
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve the harmonic current characteristic of a power supply using a regenerative current without reducing the efficiency.SOLUTION: The motor inverter includes: a torque calculation section 6 that calculates the torque necessary for driving a motor 5 at a specified rotation speed; an instructed torque setting section 7 that sets the torque calculated by the torque calculation section 6; a PWM signal generation section 8 that generates a PWM signal for driving the inverter 3 according to a torque value instructed by the instructed torque setting section 7; and an advance angle adjustment section 9 that adjusts the phase of the PWM control signal from the PWM signal generation section 8. The advance angle adjustment section 9 performs an adjustment so that the advance angle value (amplitude pattern) is not constant; or the instructed torque setting section 7 performs an adjustment so that the instruction torque value (amplitude pattern) is not constant. With this, harmonic components of the input power using a regenerative current can be dispersed and reduced.
Inventors:
FUKUE TAKASHI
Application Number:
JP2013020143A
Publication Date:
August 25, 2014
Filing Date:
February 05, 2013
Export Citation:
Assignee:
PANASONIC CORP
International Classes:
H02P27/06
Attorney, Agent or Firm:
Hiroki Naito
Fujii Kentaro
Terauchi Italian 久郎
Fujii Kentaro
Terauchi Italian 久郎
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