WO2012126860A3 - A controller for a transformer - Google Patents

A controller for a transformer Download PDF

Info

Publication number
WO2012126860A3
WO2012126860A3 PCT/EP2012/054731 EP2012054731W WO2012126860A3 WO 2012126860 A3 WO2012126860 A3 WO 2012126860A3 EP 2012054731 W EP2012054731 W EP 2012054731W WO 2012126860 A3 WO2012126860 A3 WO 2012126860A3
Authority
WO
WIPO (PCT)
Prior art keywords
transformer
controller
voltage
transformation ratio
mode
Prior art date
Application number
PCT/EP2012/054731
Other languages
French (fr)
Other versions
WO2012126860A2 (en
Inventor
Tomoyuki SHIMADZU
Makoto MIZUSAWA
Original Assignee
Powerperfector Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2011060747A external-priority patent/JP2012200041A/en
Priority claimed from JP2011060746A external-priority patent/JP2012200040A/en
Application filed by Powerperfector Limited filed Critical Powerperfector Limited
Publication of WO2012126860A2 publication Critical patent/WO2012126860A2/en
Publication of WO2012126860A3 publication Critical patent/WO2012126860A3/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P13/00—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/42—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Ac-Ac Conversion (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

A controller for a transformer having a transformation ratio, wherein the transformer has an input configured to receive an AC power source and an output configured to provide an output voltage for a load system. The controller is configured to operate the transformer in a step-down mode of operation by automatically setting the transformation ratio in accordance with the output voltage of the transformer and a target voltage; operate the transformer in an equalized-voltage mode of operation by setting the transformation ratio such that power is supplied to the load system without stepping down the AC power source; and determine the amount of power consumed during the step-down mode of operation and the equalized-voltage mode of operation.
PCT/EP2012/054731 2011-03-18 2012-03-16 A controller for a transformer WO2012126860A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2011-060747 2011-03-18
JP2011060747A JP2012200041A (en) 2011-03-18 2011-03-18 Step-down power-receiving system of ac power source with effect verification mode
JP2011-060746 2011-03-18
JP2011060746A JP2012200040A (en) 2011-03-18 2011-03-18 Method of monitoring step-down power-receiving system of ac power source

Publications (2)

Publication Number Publication Date
WO2012126860A2 WO2012126860A2 (en) 2012-09-27
WO2012126860A3 true WO2012126860A3 (en) 2013-07-04

Family

ID=45992194

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/054731 WO2012126860A2 (en) 2011-03-18 2012-03-16 A controller for a transformer

Country Status (1)

Country Link
WO (1) WO2012126860A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2504971A (en) * 2012-08-15 2014-02-19 Univ Warwick Calculating the reduction in power consumption or energy usage provided by a voltage optimizer
CN107147340A (en) * 2017-07-07 2017-09-08 国网山东省电力公司枣庄供电公司 Energy Saving for Distribution Transformer control system and method
CN114069607B (en) * 2021-10-08 2024-05-14 井上和一 Intelligent voltage control method and control system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0129839A1 (en) * 1983-06-24 1985-01-02 Regulation Technology, Inc. Variable transformer and voltage control system
US5136233A (en) * 1991-04-09 1992-08-04 Iowa-Illinois Gas And Electric Company Means and method for controlling elecrical transformer voltage regulating tapchangers
WO2006120033A2 (en) * 2005-05-13 2006-11-16 Siemens Ag Wind farm power control system
US20070296390A1 (en) * 2006-06-23 2007-12-27 Electro-Chance Llc Method and apparatus for regulating voltage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2750275B2 (en) 1995-01-10 1998-05-13 愛好電機株式会社 Power-saving transformer with autonomous switching device
JP3372178B2 (en) 1996-12-25 2003-01-27 愛好電機株式会社 Power saving device with three-phase automatic voltage switching device
CA2646173C (en) 2008-07-24 2011-08-02 E-Four Corporation Transforming apparatus for automatically adjusting three-phase power supply voltage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0129839A1 (en) * 1983-06-24 1985-01-02 Regulation Technology, Inc. Variable transformer and voltage control system
US5136233A (en) * 1991-04-09 1992-08-04 Iowa-Illinois Gas And Electric Company Means and method for controlling elecrical transformer voltage regulating tapchangers
WO2006120033A2 (en) * 2005-05-13 2006-11-16 Siemens Ag Wind farm power control system
US20070296390A1 (en) * 2006-06-23 2007-12-27 Electro-Chance Llc Method and apparatus for regulating voltage

Also Published As

Publication number Publication date
WO2012126860A2 (en) 2012-09-27

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