Title:
Control device for power converter, power converter, and electric motor drive system, compressor drive system, gas turbine power generation system using them
Document Type and Number:
Japanese Patent JP6300254
Kind Code:
B2
Abstract:
A control device for power conversion device controls a power conversion device in a system driven by the power conversion device to which an electric motor outputs AC power, and includes: a control pulse generation unit configured to generate a control pulse of the power conversion device; and a negative phase creation unit configured to input a pulse signal output by the control pulse generation unit and rotational speed information of the electric motor, and to generate an inverted signal of an output signal of the control pulse generation unit, wherein the pulse signal of a half cycle during one cycle of voltage, the pulse signal being generated by the control pulse generation unit, and a pulse signal of a next half cycle during the one cycle of voltage, the pulse signal being generated by the negative phase creation unit, are symmetrical in positive and negative relationship of voltage.
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Inventors:
Yoshimura Masatoshi
Naohiro Kusumi
Noriaki Hino
Tomofumi Shiraishi
Aung Courtet
Naohiro Kusumi
Noriaki Hino
Tomofumi Shiraishi
Aung Courtet
Application Number:
JP2017500488A
Publication Date:
March 28, 2018
Filing Date:
February 16, 2015
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
H02P27/08
Domestic Patent References:
| JP61240859A | ||||
| JP200388173A | ||||
| JP284072A |
Foreign References:
| US5625550 |
Attorney, Agent or Firm:
Isono International Patent and Trademark Office
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