DC compensation for power transformer through neutral DC injection

Burkes, Klaehn W.; Ceyssens, Vincent J.; Enslin, Johan H. R.; Nazir, Moazzam

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A - human necessities
A01 - agriculture
A21 - baking
A22 - butchering
A23 - foods or foodstuffs
A24 - tobacco
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A42 - headwear
A43 - footwear
A44 - haberdashery
A45 - hand or travelling articles
A46 - brushware
A47 - furniture
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A62 - life-saving
A63 - sports
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B01 - physical or chemical processes or apparatus in general
B02 - crushing, pulverising, or disintegrating
B03 - separation of solid materials using liquids or using pneumatic tables or jigs
B04 - centrifugal apparatus or machines for carrying-out physical or chemical processes
B05 - spraying or atomising in general
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Title: DC compensation for power transformer through neutral DC injection

Abstract

A power transmission system can include a transformer and compensator circuit(s), each coupled between a node of the transformer and a ground connection. The compensator circuit(s) can each be configured to counteract a DC signal component of an AC signal at the transformer. The compensator circuit(s) can include a converter circuit having an AC side and a DC side and configured to convert a DC voltage on the DC side to an AC signal at the AC side. The compensator circuit(s) can include a DC link coupled to the DC side of the converter circuit. The compensator circuit(s) can include a controller configured to measure a DC signal component between the load and the ground; to determine, based at least in part on the DC signal component, a compensating signal configured to counteract the DC signal component; and to inject, by the converter circuit, the compensating signal to counteract the DC signal component.

Inventors:: Burkes, Klaehn W.; Ceyssens, Vincent J.; Enslin, Johan H. R.; Nazir, Moazzam

Issue Date:: Tue Jun 28 00:00:00 EDT 2022

Research Org.:: Savannah River Site (SRS), Aiken, SC (United States); Clemson Univ., SC (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1893098

Patent Number(s):: 11374503

Application Number:: 17/196,152

Assignee:: Savannah River Nuclear Solutions, LLC (Aiken, SC); Clemson University (Clemson, SC)

Patent Classifications (CPCs):: H - ELECTRICITY H02 - GENERATION H02M - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS

Show more

H - ELECTRICITY H02 - GENERATION H02M - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS
H02M1/40 - Means for preventing magnetic saturation
H02M7/537 - using semiconductor devices only, e.g. single switched pulse inverters

Show less

DOE Contract Number:: AC09-08SR22470

Resource Type:: Patent

Resource Relation:: Patent File Date: 03/09/2021

Country of Publication:: United States

Language:: English

Citation Formats


                    Burkes, Klaehn W., Ceyssens, Vincent J., Enslin, Johan H. R., and Nazir, Moazzam. DC compensation for power transformer through neutral DC injection.  United States: N. p., 2022. 
        Web.

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                    Burkes, Klaehn W., Ceyssens, Vincent J., Enslin, Johan H. R., & Nazir, Moazzam. DC compensation for power transformer through neutral DC injection.  United States.

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                    Burkes, Klaehn W., Ceyssens, Vincent J., Enslin, Johan H. R., and Nazir, Moazzam. Tue .  
        "DC compensation for power transformer through neutral DC injection".  United States.  https://www.osti.gov/servlets/purl/1893098.

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@article{osti_1893098,

  title        = {DC compensation for power transformer through neutral DC injection},

  author       = {Burkes, Klaehn W. and Ceyssens, Vincent J. and Enslin, Johan H. R. and Nazir, Moazzam},

  abstractNote = {A power transmission system can include a transformer and compensator circuit(s), each coupled between a node of the transformer and a ground connection. The compensator circuit(s) can each be configured to counteract a DC signal component of an AC signal at the transformer. The compensator circuit(s) can include a converter circuit having an AC side and a DC side and configured to convert a DC voltage on the DC side to an AC signal at the AC side. The compensator circuit(s) can include a DC link coupled to the DC side of the converter circuit. The compensator circuit(s) can include a controller configured to measure a DC signal component between the load and the ground; to determine, based at least in part on the DC signal component, a compensating signal configured to counteract the DC signal component; and to inject, by the converter circuit, the compensating signal to counteract the DC signal component.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Jun 28 00:00:00 EDT 2022},

  month        = {Tue Jun 28 00:00:00 EDT 2022}

}

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Title: DC compensation for power transformer through neutral DC injection

Abstract

Citation Formats

Blocker of geomagnetically induced currents (GIC) patent, July 2016

Active filter for reduction of common mode current patent, October 2003

Apparatus, Systems, and Methods for Electromagnetic Protection patent-application, January 2014

GIC occurrences and GIC test for 400 kV system transformer journal, April 2002

Method and apparatus for attenuation of, and damage protection from, high energy electromagnetic pulses patent, March 2000

A Colorful Blackout: The Havoc Caused by Auroral Electrojet Generated Magnetic Field Variations in 1989 journal, November 2016

Layered neural nets for pattern recognition journal, July 1988

Battery Energy Storage And Power System patent-application, February 2015

Countermeasure for EMP-E3 induced currents patent, October 2011

Device and method for reducing a magnetic unidirectional flux component in the core of a three-phase transformer patent, May 2019

Single-Phase Multi-Level Asymmetric Inverter With AC-Bypass And Asymmetric Modulation Strategy patent-application, September 2020

Response of Power System Protective Relays to Solar and HEMP MHD-E3 GIC conference, March 2019

Effects of GIC on power transformers and power systems conference, May 2012

Transformerless series sag compensation with a cascaded multilevel inverter journal, August 2002

Geomagnetic storm of 29-31 October 2003: Geomagnetically induced currents and their relation to problems in the Swedish high-voltage power transmission system: GEOMAGNETICALLY INDUCED CURRENTS journal, August 2005

Improvement of the Electric Power Quality Using Series Active and Shunt Passive Filters journal, April 2010

Mitigation of geomagnetically induced currents by variable series reactor conference, September 2017

Interface Converter Common Mode Voltage Control patent-application, February 2018

Reactive compensation. Control of shunt compensation with reference to new design concepts journal, January 1981

Controller of adjustable DC voltage for a transformerless reactive series compensator patent, June 2001

Continuous uninterruptable AC grounding system for power system protection patent, November 2014

Method and apparatus for protecting power systems from extraordinary electromagnetic pulses patent, October 2012

Multi-Phase Electric Drive and Method Therefor patent-application, December 2016

GIC observations and studies in the Hydro-Québec power system journal, November 2002

Geomagnetically Induced Currents in European High-Voltage Power Systems conference, January 2006

Neural network control technique based sensorless DSTATCOM for the power conditioning conference, December 2015

Sensing and control electronics for a power grid protection system patent, September 2013

Protection of power transformers against geomagnetically induced currents journal, January 2011

Method and apparatus for protecting power transformers from large electro-magnetic disturbances patent, April 2015

System and Method for Suppressing Electromagnetic Pulse-Induced Electrical System Surges patent-application, July 2019

Power Supply System Including DC-to-DC Converter and Control Method Therefor patent-application, October 2020

Surge protection apparatus and method using the same patent, March 2014

System and Method for Stabilizing an Alternating Voltage Grid patent-application, April 2021

Systems and Methods for Actuating a Transformer Neutral Blocking System patent-application, July 2018

Method and system to detect and characterize electromagnetic pulses for the protection of critical infrastructure components patent, February 2017

Power grid stability protection against GIC using a capacitive grounding circuit conference, May 2012

Rotor heating effects from geomagnetic induced currents journal, April 1994

Power Supply and Method of Supplying Power patent-application, March 2016

Synchronous Sampling DC Link Voltage Control for Microinverters patent-application, February 2019

Transformer failures in regions incorrectly considered to have low GIC-risk conference, July 2007

Fuzzy logic controlled variable resistor for suppressing GIC in transformers journal, February 2017

A Comparison of Control Algorithms for DSTATCOM journal, July 2009

Blocker of geomagnetically induced currents (GIC)
patent, July 2016

Active filter for reduction of common mode current
patent, October 2003

Apparatus, Systems, and Methods for Electromagnetic Protection
patent-application, January 2014

GIC occurrences and GIC test for 400 kV system transformer
journal, April 2002

Method and apparatus for attenuation of, and damage protection from, high energy electromagnetic pulses
patent, March 2000

A Colorful Blackout: The Havoc Caused by Auroral Electrojet Generated Magnetic Field Variations in 1989
journal, November 2016

Layered neural nets for pattern recognition
journal, July 1988

Battery Energy Storage And Power System
patent-application, February 2015

Countermeasure for EMP-E3 induced currents
patent, October 2011

Device and method for reducing a magnetic unidirectional flux component in the core of a three-phase transformer
patent, May 2019

Single-Phase Multi-Level Asymmetric Inverter With AC-Bypass And Asymmetric Modulation Strategy
patent-application, September 2020

Response of Power System Protective Relays to Solar and HEMP MHD-E3 GIC
conference, March 2019

Effects of GIC on power transformers and power systems
conference, May 2012

Transformerless series sag compensation with a cascaded multilevel inverter
journal, August 2002

Geomagnetic storm of 29-31 October 2003: Geomagnetically induced currents and their relation to problems in the Swedish high-voltage power transmission system: GEOMAGNETICALLY INDUCED CURRENTS
journal, August 2005

Improvement of the Electric Power Quality Using Series Active and Shunt Passive Filters
journal, April 2010

Mitigation of geomagnetically induced currents by variable series reactor
conference, September 2017

Interface Converter Common Mode Voltage Control
patent-application, February 2018

Reactive compensation. Control of shunt compensation with reference to new design concepts
journal, January 1981

Controller of adjustable DC voltage for a transformerless reactive series compensator
patent, June 2001

Continuous uninterruptable AC grounding system for power system protection
patent, November 2014

Method and apparatus for protecting power systems from extraordinary electromagnetic pulses
patent, October 2012

Multi-Phase Electric Drive and Method Therefor
patent-application, December 2016

GIC observations and studies in the Hydro-Québec power system
journal, November 2002

Geomagnetically Induced Currents in European High-Voltage Power Systems
conference, January 2006

Neural network control technique based sensorless DSTATCOM for the power conditioning
conference, December 2015

Sensing and control electronics for a power grid protection system
patent, September 2013

Protection of power transformers against geomagnetically induced currents
journal, January 2011

Method and apparatus for protecting power transformers from large electro-magnetic disturbances
patent, April 2015

System and Method for Suppressing Electromagnetic Pulse-Induced Electrical System Surges
patent-application, July 2019

Power Supply System Including DC-to-DC Converter and Control Method Therefor
patent-application, October 2020

Surge protection apparatus and method using the same
patent, March 2014

System and Method for Stabilizing an Alternating Voltage Grid
patent-application, April 2021

Systems and Methods for Actuating a Transformer Neutral Blocking System
patent-application, July 2018

Method and system to detect and characterize electromagnetic pulses for the protection of critical infrastructure components
patent, February 2017

Power grid stability protection against GIC using a capacitive grounding circuit
conference, May 2012

Rotor heating effects from geomagnetic induced currents
journal, April 1994

Power Supply and Method of Supplying Power
patent-application, March 2016

Synchronous Sampling DC Link Voltage Control for Microinverters
patent-application, February 2019

Transformer failures in regions incorrectly considered to have low GIC-risk
conference, July 2007

Fuzzy logic controlled variable resistor for suppressing GIC in transformers
journal, February 2017

A Comparison of Control Algorithms for DSTATCOM
journal, July 2009