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Patent Searching and Data


Title:
CONTROL DEVICE FOR DIRECT POWER CONVERTER
Document Type and Number:
WIPO Patent Application WO/2020/184538
Kind Code:
A1
Abstract:
The present invention reduces a distortion of a sinusoidal wave of a waveform of a current input to a direct power converter. This control device (10) is provided with a duty generation unit (1020) and an inverter control unit (101). The duty generation unit generates a first duty (drec') and a second duty (dc'). The first duty is a duty in which a first current flows from a converter to a DC link. The second duty is a duty in which a second current flows from a power buffer circuit to the DC link. The inverter control unit outputs inverter control signals (SSup, SSvp, SSwp, SSun, SSvn, SSwn) for controlling an operation of the inverter on the basis of the first duty, the second duty, and voltage instruction values (Vu*, Vv*, Vw*) output from the inverter.

Inventors:
SAKAKIBARA KENICHI (JP)
Application Number:
PCT/JP2020/010174
Publication Date:
September 17, 2020
Filing Date:
March 10, 2020
Export Citation:
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Assignee:
DAIKIN IND LTD (JP)
International Classes:
H02M7/12; H02M7/48
Foreign References:
JP2018061422A2018-04-12
JP2015076921A2015-04-20
JP2015084637A2015-04-30
JP2016082680A2016-05-16
JP2011193678A2011-09-29
JP6265297B12018-01-24
JP5772915B22015-09-02
JPS584167B21983-01-25
JP5874800B12016-03-02
JP5794273B22015-10-14
Other References:
SUGAKIMATAUCHIDA: "A Simple Switching Method for A Improved Power Factor Type Single Phase Converter", IEEJ TRANSACTIONS ON INDUSTRY APPLICATIONS, vol. 116, no. 4, 1996, pages 420 - 426
UESGI: "Single-Phase Twice Voltage PFC Converter for Air Conditioner", IEEJ TRANSACTIONS ON INDUSTRY APPLICATIONS, vol. 119, no. 5, 1999, pages 592 - 598
Attorney, Agent or Firm:
YOSHITAKE Hidetoshi et al. (JP)
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