Title:
INVERTER CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2019140896
Kind Code:
A
Abstract:
To provide an inverter control device which has a simplified structure, requires smaller memory capacity and thus reduces over-modulation time.SOLUTION: An inverter control device 6 includes an over-modulation unit 10, a proportional-integral control unit 20, a phase-voltage magnitude determination unit 30, and an adder. The phase-voltage magnitude determination unit 30 determines the fundamental-wave magnitude of a phase voltage corresponding to a modified voltage. The proportional-integral control unit 20 performs proportional-integral (PI) control of an error between the fundamental-wave magnitude of the phase voltage and the magnitude of a command voltage thereby outputting a compensation voltage. The adder adds the command voltage and the compensation voltage together. The over-modulation unit 10 outputs the modified voltage by over-modulating the added output.SELECTED DRAWING: Figure 8
Inventors:
CHOI SEUNG-CHEOL
LEE HAK-JUN
LEE HAK-JUN
Application Number:
JP2018154144A
Publication Date:
August 22, 2019
Filing Date:
August 20, 2018
Export Citation:
Assignee:
LSIS CO LTD
International Classes:
H02M7/48
Domestic Patent References:
| JP2016015866A | 2016-01-28 | |||
| JP2014039425A | 2014-02-27 | |||
| JP2016208819A | 2016-12-08 |
Attorney, Agent or Firm:
Hiroyuki Nagai
Yukitaka Nakamura
Yasukazu Sato
Satoru Asakura
Takeshi Sekine
Takeyuki Suzuki
Yukitaka Nakamura
Yasukazu Sato
Satoru Asakura
Takeshi Sekine
Takeyuki Suzuki