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Patent Searching and Data


Title:
VOLTAGE COMPENSATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/168948
Kind Code:
A1
Abstract:
A voltage compensation device according to one embodiment of the present invention is provided with: a power converter that supplies a compensation voltage for compensating for a phase voltage of a power system to a transformer connected in series to phases of the power system; and a control unit that outputs a control signal for controlling the power converter on the basis of the phase voltage and a preset target voltage of the power system. The control unit includes: a first computing unit that generates a command value for generating the compensation voltage on the basis of the phase voltage and the target voltage; and a determination circuit that compares the deviation between the command value and the target voltage with a preset minimum compensation voltage value, and outputs a stop signal for stopping at least a part of the control signal when the deviation is less than the minimum compensation voltage value.

Inventors:
TAMADA SHUNSUKE (JP)
MOCHIKAWA HIROSHI (JP)
WATANABE YUJI (JP)
Application Number:
PCT/JP2018/010024
Publication Date:
September 20, 2018
Filing Date:
March 14, 2018
Export Citation:
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Assignee:
TOSHIBA KK (JP)
TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORP (JP)
International Classes:
H02M7/48; H02J3/12; H02M7/12
Foreign References:
JP2005304171A2005-10-27
JP2005094829A2005-04-07
JP2006067684A2006-03-09
JP2002374624A2002-12-26
JP2017005941A2017-01-05
JP2001119859A2001-04-27
Attorney, Agent or Firm:
HYUGAJI, Masahiko (JP)
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