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Patent Searching and Data


Title:
POWER CONDITIONER SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/208789
Kind Code:
A1
Abstract:
A power conditioner system for which self-excitation-type power conditioner devices (1), (1A), (1B) that perform bidirectional power conditioning are DC-linked to each other, wherein when a power conditioner device (1) designated to perform power transmission has stopped, the first power conditioner device (1A) calculates the current quantity by which the DC capacitor voltage control unit (23) will compensate for the capacitor voltage in accordance with the variation in voltage of the DC capacitor. A high-voltage-side DC current control unit (26) determines that the electricity quantity supplied from a power supply system (4A) to the first power conditioner device (1A) is a prescribed value or greater, and the current quantity for compensating the capacitor voltage is subtracted from the DC current command value. Thereby, while keeping the DC voltage constant, the flow direction is changed and the transmission of power to a second DC system (4B) is continued.

Inventors:
TANAKA Miwako (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
FUJII Toshiyuki (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2017/018060
Publication Date:
December 07, 2017
Filing Date:
May 12, 2017
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
H02M3/28; H02M7/48; H02M7/797
Domestic Patent References:
WO2015015570A12015-02-05
Foreign References:
JP2008005657A2008-01-10
JP2014230418A2014-12-08
Attorney, Agent or Firm:
MURAKAMI Keigo et al. (35-8, Minamimukonoso 3-chome Amagasaki-sh, Hyogo 33, 〒6610033, JP)
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