GB2480708B - Improved apparatus & method in relation to voltage optimization - Google Patents

Improved apparatus & method in relation to voltage optimization

Info

Publication number
GB2480708B
GB2480708B GB1014460.8A GB201014460A GB2480708B GB 2480708 B GB2480708 B GB 2480708B GB 201014460 A GB201014460 A GB 201014460A GB 2480708 B GB2480708 B GB 2480708B
Authority
GB
United Kingdom
Prior art keywords
transformer
voltage
current
received
reduced
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
GB1014460.8A
Other versions
GB201014460D0 (en
GB2480708A (en
Inventor
Alex Mardapittas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Emsc UK Ltd
Original Assignee
Emsc UK Ltd
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
Application filed by Emsc UK Ltd filed Critical Emsc UK Ltd
Priority to GB1014460.8A priority Critical patent/GB2480708B/en
Publication of GB201014460D0 publication Critical patent/GB201014460D0/en
Priority to PCT/GB2011/001205 priority patent/WO2012028839A2/en
Publication of GB2480708A publication Critical patent/GB2480708A/en
Application granted granted Critical
Publication of GB2480708B publication Critical patent/GB2480708B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
    • G05F1/24—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using bucking or boosting transformers as final control devices
    • 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
    • H01F27/33—Arrangements for noise damping
    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/343—Preventing or reducing surge voltages; oscillations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/01—Arrangements for reducing harmonics or ripples
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/40—Arrangements for reducing harmonics

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Ac-Ac Conversion (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Dc-Dc Converters (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

A transformer based voltage optimization apparatus 201 is used in an electrical circuit comprising a load 202 and comprises a first transformer 203, to transform received electrical current at a first alternating voltage 204 into second voltage 205, and a second transformer arrangement 207 configured to reduce a frequency component of the received electrical current that constitutes electrical noise. Transformer 203 can be a buck-boost transformer, increase or decrease voltage and include insulated primary and secondary windings. Transformer arrangement 207 can be a third winding either wound on the same core or on a separate core, separately housed, and be a zero sequence harmonic or zig-zag winding. Plural frequency components can be reduced, including harmonics of the received current, and their frequency selected or adjusted. The received current can be split into current phases, by phase shifting, and shifted by 180 degrees to cancel each other out. Harmonics emanating from noise sources such as information technology equipment, high frequency lighting and variable speed drives can be reduced, increasing the life and efficiency of voltage optimizing equipment.
GB1014460.8A 2010-09-01 2010-09-01 Improved apparatus & method in relation to voltage optimization Active GB2480708B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1014460.8A GB2480708B (en) 2010-09-01 2010-09-01 Improved apparatus & method in relation to voltage optimization
PCT/GB2011/001205 WO2012028839A2 (en) 2010-09-01 2011-08-11 Improved apparatus & method in relation to voltage optimization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1014460.8A GB2480708B (en) 2010-09-01 2010-09-01 Improved apparatus & method in relation to voltage optimization

Publications (3)

Publication Number Publication Date
GB201014460D0 GB201014460D0 (en) 2010-10-13
GB2480708A GB2480708A (en) 2011-11-30
GB2480708B true GB2480708B (en) 2013-07-10

Family

ID=43013465

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1014460.8A Active GB2480708B (en) 2010-09-01 2010-09-01 Improved apparatus & method in relation to voltage optimization

Country Status (2)

Country Link
GB (1) GB2480708B (en)
WO (1) WO2012028839A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103413658A (en) * 2013-08-09 2013-11-27 卧龙电气集团股份有限公司 Amorphous alloy dry traction rectifier transformer allowing network side terminals to be led out from the same side
US10725678B2 (en) 2018-04-11 2020-07-28 International Business Machines Corporation Power management for memory subsystems

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1181262A (en) * 1967-09-20 1970-02-11 Advance Electronics Ltd Inductive Electric Apparatus
US5619080A (en) * 1995-11-02 1997-04-08 Power & Ground Systems Corporation Line filter for reducing AC harmonics
US5790356A (en) * 1994-10-13 1998-08-04 Bottrell; Gerald W. Transformer protection system for protecting source transformers from ill effects of zero-sequence currents
US5982262A (en) * 1994-04-20 1999-11-09 Levin; Michael I. Phase shifting transformer with low zero phase sequence impedance
WO2006021793A1 (en) * 2004-08-26 2006-03-02 Converteam Ltd. Transformers
WO2009038336A2 (en) * 2007-09-18 2009-03-26 Enertech Co. Ltd. Apparatus for improving power quality

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1236332A (en) * 1969-02-12 1971-06-23 Ferranti Ltd Improvements relating to a.c. voltage-control apparatus
US5576942A (en) * 1994-09-30 1996-11-19 Universities Research Association, Inc. Method and apparatus for reducing the harmonic currents in alternating-current distribution networks
CA2359525C (en) * 2000-10-20 2005-12-27 Delta Transformers Of Canada (1999) Ltd. Power center unit for electronic equipment
WO2006022525A1 (en) 2004-08-25 2006-03-02 Sung Ho Lee Device for reducing harmonics in three-phase poly-wire power lines
NO322285B1 (en) 2004-12-23 2006-09-11 Magtech As booster

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1181262A (en) * 1967-09-20 1970-02-11 Advance Electronics Ltd Inductive Electric Apparatus
US5982262A (en) * 1994-04-20 1999-11-09 Levin; Michael I. Phase shifting transformer with low zero phase sequence impedance
US5790356A (en) * 1994-10-13 1998-08-04 Bottrell; Gerald W. Transformer protection system for protecting source transformers from ill effects of zero-sequence currents
US5619080A (en) * 1995-11-02 1997-04-08 Power & Ground Systems Corporation Line filter for reducing AC harmonics
WO2006021793A1 (en) * 2004-08-26 2006-03-02 Converteam Ltd. Transformers
WO2009038336A2 (en) * 2007-09-18 2009-03-26 Enertech Co. Ltd. Apparatus for improving power quality

Also Published As

Publication number Publication date
GB201014460D0 (en) 2010-10-13
WO2012028839A2 (en) 2012-03-08
WO2012028839A3 (en) 2013-02-28
GB2480708A (en) 2011-11-30

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20180901

S28 Restoration of ceased patents (sect. 28/pat. act 1977)

Free format text: APPLICATION FILED

S28 Restoration of ceased patents (sect. 28/pat. act 1977)

Free format text: RESTORATION ALLOWED

Effective date: 20190924