Title:
モータの制御装置および駆動システム
Document Type and Number:
Japanese Patent JP6674804
Kind Code:
B2
Abstract:
An object of the invention is to reduce or minimize a harmonic loss which is generated when an alternating-current motor is driven in an over-modulation region. In a case where a modulation rate reaches a predetermined value equal to or greater than one, a final correction signal wave is switched from zero to the synchronous correction signal. In a case where the modulation rate reaches a predetermined value equal to or greater than one, a final amplitude is switched from the first amplitude to a fixed amplitude.
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Inventors:
Takaoka Midori
Kazuaki Tohari
Yoshinao Iwaji
Yusaku Onuma
Takuya Sugimoto
Kazuaki Tohari
Yoshinao Iwaji
Yusaku Onuma
Takuya Sugimoto
Application Number:
JP2016050388A
Publication Date:
April 01, 2020
Filing Date:
March 15, 2016
Export Citation:
Assignee:
Hitachi Industrial Equipment Systems Co., Ltd.
International Classes:
H02P27/08
Domestic Patent References:
| JP2014072936A | ||||
| JP2016005378A | ||||
| JP2015053824A | ||||
| JP2013141336A | ||||
| JP2007143316A |
Attorney, Agent or Firm:
Yuji Toda