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Patent Searching and Data


Title:
POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/082297
Kind Code:
A1
Abstract:
This power conversion device is provided with a converter (2R), a first capacitor (C1R), and a second capacitor (C2R). The first capacitor (C1R) is connected between a DC positive bus line (PL1) and a DC neutral point bus line (NL1). The second capacitor (C2R) is connected between the DC neutral point bus line (NL1) and a DC negative bus line (CL1). The converter (2R) includes: diode rectifiers (D1R, D2R) that are respectively connected between an AC power supply (1) and the DC positive bus line (PL1), and between an AC power supply (1) and the DC negative bus line (NL1); and first AC switches (D3R to D6R, Q1R) that are electrically connected between the AC power supply (1) and the DC neutral point bus line (CL1). The power conversion device is further provided with a first fuse (FR) that is electrically connected between the first AC switches (D3R to D6R, Q1R) and a connection point between the first and the second capacitors.

Inventors:
NISHIMURA, Kazuki (3-1-1 Kyobashi Chuo-k, Tokyo 31, 〒1040031, JP)
NAKANO, Toshihide (3-1-1 Kyobashi Chuo-k, Tokyo 31, 〒1040031, JP)
Application Number:
JP2017/038487
Publication Date:
May 02, 2019
Filing Date:
October 25, 2017
Export Citation:
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Assignee:
TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION (3-1-1 Kyobashi, Chuo-ku Tokyo, 31, 〒1040031, JP)
International Classes:
H02M7/12; H02M7/48; H02M7/487
Domestic Patent References:
WO2010095241A12010-08-26
Foreign References:
JP2017022815A2017-01-26
JP2012019647A2012-01-26
JP2000308361A2000-11-02
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (Nakanoshima Festival Tower West, 2-4 Nakanoshima 3-chome, Kita-ku, Osaka-sh, Osaka 05, 〒5300005, JP)
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