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Title:
TRANSFORMER-TYPE VOLTAGE CONTROL DEVICE, REACTIVE-POWER-ADJUSTING VOLTAGE CONTROL DEVICE, AND POWER DISTRIBUTION SYSTEM VOLTAGE CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2015/022724
Kind Code:
A1
Abstract:
This transformer-type voltage control device uses reactive power occurrence data (reactive power integrated value, positive greatest reactive power integrated value, and negative greatest reactive power integrated value) received from a reactive-power-controlling voltage control device to calculate the total reactive power integrated value, the total positive greatest reactive power integrated value, and the negative greatest reactive power integrated value, calculates a positive reactive power reserve on the basis of the total positive greatest reactive power integrated value and the total reactive power integrated value, calculates a negative reactive power reserve on the basis of the total negative greatest reactive power integrated value and the total reactive power integrated value, alters a tap position of the transformer-type voltage control device in a manner such that the positive reactive power reserve is greater than a positive-side threshold when the positive reactive power reserve is less than the positive-side threshold, and alters the tap position in a manner such that the negative reactive power reserve is greater than a negative-side threshold when the negative reactive power reserve is less than the negative-side threshold.

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Inventors:
ITAYA NOBUHIKO (JP)
Application Number:
PCT/JP2013/071805
Publication Date:
February 19, 2015
Filing Date:
August 12, 2013
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02J13/00; H02J3/16
Foreign References:
JPH04317523A1992-11-09
JPS5967834A1984-04-17
JP2010057311A2010-03-11
JP2012039818A2012-02-23
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
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