INVERTER CONTROL DEVICE

WIPO Patent Application WO/2017/141539

A1

An inverter control device (10) comprises: a current detection unit (11) for detecting a current value flowing through a DC bus line (5) of an inverter (3); a detected current storage unit (12) for obtaining the current value at a current value detection timing; a phase current calculation unit (13) for restoring an AC current value; a command voltage vector generation unit (14) for generating a command voltage vector on the basis of the AC current value and a rotating speed command value; a corrected command voltage vector generation unit (15) for generating a corrected command voltage vector; and a switching time setting unit (16) for setting a switching time and outputting the switching time to the detected current storage unit (12) and an inverter control unit (17). A half of a switching cycle is defined as a unit cycle, and a plurality of voltage vectors, the sum of which results in zero vector in n cycles (n is a natural number of 2 or more), are applied, thereby generating the corrected command voltage vector. This suppresses the occurrence of current ripples, enabling the occurrence of a beat sound to be reduced.

JP4137849	Servo motor control method and equipment
JPH09191506	ELECTRIC VEHICLE CONTROL DEVICE
JP2017009292	MOTOR DEVICE

SANO SOTA (JP)
TERASHIMA SATORU (JP)
FUKUOKA HIROATSU (JP)
SATAKE AKIRA (JP)
FURUTANI SHINICHI (JP)

PCT/JP2016/087867

August 24, 2017

December 20, 2016

Click for automatic bibliography generation  

MITSUBISHI ELECTRIC CORP (JP)

H02P27/06; H02M7/48

JP2015061381A	2015-03-30
JP2007082355A	2007-03-29
JP2012178927A	2012-09-13

OIWA Masuo et al. (JP)

View/Download PDF      PDF Help

Previous Patent: THREADED JOINT FOR OIL WELL PIPE

Next Patent: INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM