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Alex Skorcz Phones & Addresses

  • Leander, TX
  • 1816 Lost Maples Loop, Cedar Park, TX 78613
  • College Station, TX
  • Round Rock, TX
  • Sheridan, AR
  • Jonesboro, AR
  • 602 S Cougar Ave, Cedar Park, TX 78613 (870) 219-9736

Publications

Us Patents

Power Converter For Use With Wind Generator

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US Patent:
7863766, Jan 4, 2011
Filed:
Jun 30, 2009
Appl. No.:
12/494668
Inventors:
Mehdi Abolhassani - Austin TX, US
Thomas Keister - Georgetown TX, US
Haran Karmaker - Round Rock TX, US
Ryan Edwards - Round Rock TX, US
Enrique Ledezma - Austin TX, US
Alex Skorcz - Cedar Park TX, US
Assignee:
TECO-Westinghouse Motor Company - Round Rock TX
International Classification:
F30D 9/00
US Classification:
290 44, 290 45, 322 24
Abstract:
In one embodiment, the present invention includes a turbine to generate mechanical energy from kinetic energy, a generator coupled to the turbine to receive the mechanical energy and to output multiple isolated supply powers, and multiple power stages each coupled to the generator. Each of the power stages may receive at least one of the isolated supply powers.

Partial Regeneration In A Multi-Level Power Inverter

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US Patent:
7940537, May 10, 2011
Filed:
Dec 31, 2008
Appl. No.:
12/317958
Inventors:
Mehdi Abolhassani - Austin TX, US
Thomas Keister - Georgetown TX, US
Alex Skorcz - Cedar Park TX, US
Enrique Ledezma - Austin TX, US
Ryan Edwards - Round Rock TX, US
Assignee:
TECO-Westinghouse Motor Company - Round Rock TX
International Classification:
H02M 1/12
US Classification:
363 65, 363 37, 363 39, 363 78
Abstract:
In one embodiment, the present invention includes a medium voltage drive system having multiple power cells each to couple between a transformer and a load. A first subset of the power cells are configured to provide power to the load and to perform partial regeneration from the load, and a second subset of the power cells are configured to provide power to the load but not perform partial regeneration. A controller may be included in the system to simultaneously control a DC bus voltage of at least one of the first subset of the power cells, correct a power factor of the system, and provide harmonic current compensation for the system.

Power Converter For Use With Wind Generator

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US Patent:
8106526, Jan 31, 2012
Filed:
Jun 30, 2010
Appl. No.:
12/827797
Inventors:
Mehdi Abolhassani - Austin TX, US
Thomas Keister - Georgetown TX, US
Haran Karmaker - Round Rock TX, US
Ryan Edwards - Round Rock TX, US
Enrique Ledezma - Austin TX, US
Alex Skorcz - Cedar Park TX, US
Assignee:
TECO-Westinghouse Motor Company - Round Rock TX
International Classification:
H02K 6/00
US Classification:
290 44, 290 43, 290 54
Abstract:
In one embodiment, the present invention includes a turbine to generate mechanical energy from kinetic energy, a generator coupled to the turbine to receive the mechanical energy and to output multiple isolated supply powers, and multiple power stages each coupled to the generator. Each of the power stages may receive at least one of the isolated supply powers.

Power Converter For Use With Wind Generator

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US Patent:
8129853, Mar 6, 2012
Filed:
Jun 30, 2010
Appl. No.:
12/827836
Inventors:
Mehdi Abolhassani - Austin TX, US
Thomas Keister - Georgetown TX, US
Haran Karmaker - Round Rock TX, US
Ryan Edwards - Round Rock TX, US
Enrique Ledezma - Austin TX, US
Alex Skorcz - Cedar Park TX, US
Assignee:
TECO-Westinghouse Motor Company - Round Rock TX
International Classification:
H02K 6/00
US Classification:
290 44, 290 54, 290 55
Abstract:
In one embodiment, the present invention includes a turbine to generate mechanical energy from kinetic energy, a generator coupled to the turbine to receive the mechanical energy and to output multiple isolated supply powers, and multiple power stages each coupled to the generator. Each of the power stages may receive at least one of the isolated supply powers.

Pluggable Power Cell For An Inverter

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US Patent:
8130501, Mar 6, 2012
Filed:
Jun 30, 2009
Appl. No.:
12/495359
Inventors:
Enrique Ledezma - Austin TX, US
Thomas Keister - Georgetown TX, US
Mehdi Abolhassani - Austin TX, US
Ryan Edwards - Round Rock TX, US
Alex Skorcz - Cedar Park TX, US
Randall Pipho - Leander TX, US
Srinivas Satumahanti - Austin TX, US
Assignee:
TECO-Westinghouse Motor Company - Round Rock TX
International Classification:
H01H 33/32
H01R 13/62
US Classification:
361727, 361601, 361614, 361623, 361657, 361724, 361725, 307 91, 307 106, 307 107, 307 17, 363 65, 363 71, 320116, 320119, 320122, 439248, 439263, 439500, 439504, 318376, 318440
Abstract:
In one embodiment, a power cell chamber for a drive system includes moveable and fixed portions. The moveable portion includes a rectifier stage to rectify an input signal received from a secondary winding of a transformer to provide a rectified signal and an inverter stage having a plurality of switching devices to receive a DC signal and output an AC signal. This moveable portion can be slidably adapted within a cabinet of the drive system. In turn, the fixed portion includes a DC link having at least one capacitor to receive the rectified signal and provide the DC signal to the inverter stage.

Partial Regeneration In A Multi-Level Power Inverter

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US Patent:
8213198, Jul 3, 2012
Filed:
Apr 27, 2011
Appl. No.:
13/094947
Inventors:
Mehdi Abolhassani - Austin TX, US
Thomas Keister - Georgetown TX, US
Alex Skorcz - Cedar Park TX, US
Enrique Ledezma - Austin TX, US
Ryan Edwards - Round Rock TX, US
Assignee:
TECO-Westinghouse Motor Company - Round Rock TX
International Classification:
H02M 1/12
US Classification:
363 65, 363 37, 363 39, 363 78
Abstract:
In one embodiment, the present invention includes a medium voltage drive system having multiple power cells each to couple between a transformer and a load. A first subset of the power cells are configured to provide power to the load and to perform partial regeneration from the load, and a second subset of the power cells are configured to provide power to the load but not perform partial regeneration. A controller may be included in the system to simultaneously control a DC bus voltage of at least one of the first subset of the power cells, correct a power factor of the system, and provide harmonic current compensation for the system.

Pre-Charging An Inverter Using An Auxiliary Winding

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US Patent:
8223515, Jul 17, 2012
Filed:
Feb 26, 2009
Appl. No.:
12/393229
Inventors:
Mehdi Abolhassani - Austin TX, US
Thomas Keister - Georgetown TX, US
Alex Skorcz - Cedar Park TX, US
Ryan Edwards - Round Rock TX, US
Enrique Ledezma - Austin TX, US
Assignee:
TECO—Westinghouse Motor Company - Round Rock TX
International Classification:
H02J 1/10
US Classification:
363 65, 363 34, 363 37, 363 39, 363 71, 363 78, 363 84
Abstract:
A transformer module includes a main primary winding coupled to a first input power source to receive a medium voltage signal, multiple main secondary windings each to couple to a power cell of a drive system, and an auxiliary primary winding coupled to a second input power source to receive a low voltage signal. The auxiliary primary winding can be spatially separated from the main windings to increase leakage inductance. The auxiliary primary winding can be active during a pre-charge operation to pre-charge the power cells.

Providing Modular Power Conversion

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US Patent:
8254076, Aug 28, 2012
Filed:
Jun 30, 2009
Appl. No.:
12/495385
Inventors:
Enrique Ledezma - Austin TX, US
Thomas Keister - Georgetown TX, US
Mehdi Abolhassani - Austin TX, US
Ryan Edwards - Round Rock TX, US
Alex Skorcz - Cedar Park TX, US
Randall Pipho - Learder TX, US
Srinivas Satumahanti - Austin TX, US
Assignee:
TECO-Westinghouse Motor Company - Round Rock TX
International Classification:
H02H 9/00
US Classification:
361118
Abstract:
In one embodiment, a medium voltage drive system includes at least one transformer and multiple power cell chambers each coupled to a transformer. The power cell chambers each may include a rectifier, a DC-link, and an inverter. Each power cell chamber can be separated into fixed and moveable portions, where the moveable portion includes the rectifier and the inverter and the fixed portion includes the DC-link. A power service bus can couple the fixed and moveable portions of each power cell chamber and couple in series groups of the plurality of power cell chambers.
Alex J Skorcz from Leander, TX, age ~41 Get Report