WO2007050440A3 - An apparatus and methods for providing a voltage adjustment for single-phase voltage regulator operation in a three-phase power system - Google Patents

An apparatus and methods for providing a voltage adjustment for single-phase voltage regulator operation in a three-phase power system Download PDF

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Publication number
WO2007050440A3
WO2007050440A3 PCT/US2006/040965 US2006040965W WO2007050440A3 WO 2007050440 A3 WO2007050440 A3 WO 2007050440A3 US 2006040965 W US2006040965 W US 2006040965W WO 2007050440 A3 WO2007050440 A3 WO 2007050440A3
Authority
WO
WIPO (PCT)
Prior art keywords
voltage
phase
voltage regulator
power system
providing
Prior art date
Application number
PCT/US2006/040965
Other languages
French (fr)
Other versions
WO2007050440A2 (en
Inventor
Casper Labuschagne
Original Assignee
Schweitzer Engineering Lab Inc
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 US11/368,827 external-priority patent/US7271572B2/en
Application filed by Schweitzer Engineering Lab Inc filed Critical Schweitzer Engineering Lab Inc
Priority to CA2624411A priority Critical patent/CA2624411C/en
Priority to BRPI0617615-1A priority patent/BRPI0617615A2/en
Publication of WO2007050440A2 publication Critical patent/WO2007050440A2/en
Publication of WO2007050440A3 publication Critical patent/WO2007050440A3/en

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
    • G05F1/70—Regulating power factor; Regulating reactive current or power
    • 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
    • H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
    • H02J3/1878—Arrangements for adjusting, eliminating or compensating reactive power in networks using tap changing or phase shifting transformers
    • 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
    • Y02E40/30—Reactive power compensation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Control Of Electrical Variables (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

Provided is an apparatus and method for providing a voltage reduction for single-phase voltage regulator operation in a three-phase power system. The voltage regulator includes a plurality of tap positions selectable to adjust a voltage at a load to an in-band area. The method includes determining a measured voltage and current at the voltage regulator, determining a line voltage drop between the voltage regulator and the load if the measured voltage in the OOB area above the in-band area, and utilizing the measured voltage to lower the voltage at the load if there are no available taps. The method also includes utilizing the measured voltage less the line voltage drop to determine the tap change if there are available taps.
PCT/US2006/040965 2005-10-21 2006-10-18 An apparatus and methods for providing a voltage adjustment for single-phase voltage regulator operation in a three-phase power system WO2007050440A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA2624411A CA2624411C (en) 2005-10-21 2006-10-18 An apparatus and methods for providing a voltage adjustment for single-phase voltage regulator operation in a three-phase power system
BRPI0617615-1A BRPI0617615A2 (en) 2005-10-21 2006-10-18 apparatus and method for providing a voltage adjustment for single-phase voltage regulator operation of a voltage regulator, and method for providing a voltage reduction for single-phase voltage regulator operation of a voltage regulator

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US72934105P 2005-10-21 2005-10-21
US60/729,341 2005-10-21
US11/368,827 US7271572B2 (en) 2005-10-24 2006-03-06 Apparatus and methods for providing a voltage adjustment for single-phase voltage regulator operation in a three-phase power system
US11/368,827 2006-03-06

Publications (2)

Publication Number Publication Date
WO2007050440A2 WO2007050440A2 (en) 2007-05-03
WO2007050440A3 true WO2007050440A3 (en) 2009-05-14

Family

ID=37968406

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/040965 WO2007050440A2 (en) 2005-10-21 2006-10-18 An apparatus and methods for providing a voltage adjustment for single-phase voltage regulator operation in a three-phase power system

Country Status (3)

Country Link
BR (1) BRPI0617615A2 (en)
CA (1) CA2624411C (en)
WO (1) WO2007050440A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5581173A (en) * 1991-01-03 1996-12-03 Beckwith Electric Co., Inc. Microcontroller-based tap changer controller employing half-wave digitization of A.C. signals
GB2339928A (en) * 1996-12-05 2000-02-09 Robert Wallace Beckwith Controlling VAR flow in electrical power systems
US6118676A (en) * 1998-11-06 2000-09-12 Soft Switching Technologies Corp. Dynamic voltage sag correction
US6486644B1 (en) * 1999-05-28 2002-11-26 Arris International, Inc. Method and architecture for limiting input current to a broadband network power supply

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5581173A (en) * 1991-01-03 1996-12-03 Beckwith Electric Co., Inc. Microcontroller-based tap changer controller employing half-wave digitization of A.C. signals
GB2339928A (en) * 1996-12-05 2000-02-09 Robert Wallace Beckwith Controlling VAR flow in electrical power systems
US6118676A (en) * 1998-11-06 2000-09-12 Soft Switching Technologies Corp. Dynamic voltage sag correction
US6486644B1 (en) * 1999-05-28 2002-11-26 Arris International, Inc. Method and architecture for limiting input current to a broadband network power supply

Also Published As

Publication number Publication date
WO2007050440A2 (en) 2007-05-03
BRPI0617615A2 (en) 2011-08-02
CA2624411A1 (en) 2007-05-03
CA2624411C (en) 2011-12-13

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