Lixiang Wei

Person

Mequon, WI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Open loop phase pre-charge
- Patent number 11,984,814
- Issue date May 14, 2024
- Rockwell Automation Technologies, Inc.
- Lixiang Wei
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Transformerless parallel AFE with ground current regulator
- Patent number 11,641,167
- Issue date May 2, 2023
- Rockwell Automation Technologies, Inc.
- James A. Ulrich
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
System and method for ground fault detection
- Patent number 11,402,436
- Issue date Aug 2, 2022
- Rockwell Automation Technologies, Inc.
- Jiangang Hu
- G01 - MEASURING TESTING
Information Patent Grant
Motor stator resistance calculation
- Patent number 11,366,147
- Issue date Jun 21, 2022
- Rockwell Automation Technologies, Inc.
- Lixiang Wei
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching frequency and PWM control to extend power converter lifetime
- Patent number 11,336,206
- Issue date May 17, 2022
- Rockwell Automation Technoligies, Inc.
- Yujia Cui
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
SCR based AC precharge protection
- Patent number 11,025,052
- Issue date Jun 1, 2021
- Rockwell Automation Technologies, Inc.
- Andrew J. Roberts
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Multi-segment and nonlinear droop control for parallel operating ac...
- Patent number 10,811,990
- Issue date Oct 20, 2020
- Rockwell Automation Technologies, Inc.
- Ahmed S. Mohamed Sayed Ahmed
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Bootstrap charging by PWM control
- Patent number 10,784,797
- Issue date Sep 22, 2020
- Rockwell Automation Technologies, Inc.
- Willy E. Sedano
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Automatic system grounding condition detection
- Patent number 10,725,116
- Issue date Jul 28, 2020
- Rockwell Automation Technologies, Inc.
- Lixiang Wei
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Power conversion system with PWM carrier emulation
- Patent number 10,541,626
- Issue date Jan 21, 2020
- Rockwell Automation Technologies, Inc.
- Jacob M. Lamb
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power conversion system and filter therefor
- Patent number 10,476,381
- Issue date Nov 12, 2019
- Rockwell Automation Technologies, Inc.
- Christian S. Sartler
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Motor drive with silicon carbide MOSFET switches
- Patent number 10,389,263
- Issue date Aug 20, 2019
- Rockwell Automation Technologies, Inc.
- Kevin Baumann
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Apparatus for reduced voltage stress on AC motors and cables
- Patent number 10,389,213
- Issue date Aug 20, 2019
- Rockwell Automation Technologies, Inc.
- Yuan Xiao
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and apparatus for bypassing Cascaded H-Bridge (CHB) power ce...
- Patent number 10,305,368
- Issue date May 28, 2019
- Rockwell Automation Technologies, Inc.
- Navid R. Zargari
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
System and method for ground fault detection
- Patent number 10,302,688
- Issue date May 28, 2019
- Rockwell Automation Technologies, Inc.
- Jiangang Hu
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Compact inductor
- Patent number 10,217,555
- Issue date Feb 26, 2019
- Rockwell Automation Technologies, Inc.
- Xikai Sun
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Common voltage reduction for active front end drives
- Patent number 10,158,299
- Issue date Dec 18, 2018
- Rockwell Automation Technologies, Inc.
- Lixiang Wei
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power conversion system with conditioner capacitor discharge apparatus
- Patent number 10,008,952
- Issue date Jun 26, 2018
- Rockwell Automation Technologies, Inc.
- Jiangang Hu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Converter lifetime improvement method for doubly fed induction gene...
- Patent number 9,998,030
- Issue date Jun 12, 2018
- Rockwell Automation Technologies, Inc.
- Lixiang Wei
- G05 - CONTROLLING REGULATING
Information Patent Grant
Active front end power converter with boost mode derating to protec...
- Patent number 9,973,137
- Issue date May 15, 2018
- Rockwell Automation Technologies, Inc.
- Yogesh Patel
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Motor drive with resonance detection and impedance computation
- Patent number 9,960,723
- Issue date May 1, 2018
- Rockwell Automation Technologies, Inc.
- Shaofeng Zhang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Motor drive filter damping
- Patent number 9,923,469
- Issue date Mar 20, 2018
- Rockwell Automation Technologies, Inc.
- Yuan Xiao
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and apparatus for bypassing cascaded h-bridge (CHB) power ce...
- Patent number 9,912,221
- Issue date Mar 6, 2018
- Rockwell Automation Technologies, Inc.
- Navid R. Zargari
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Precharge apparatus for power conversion system
- Patent number 9,837,924
- Issue date Dec 5, 2017
- Rockwell Automation Technologies, Inc.
- Lixiang Wei
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
LCL filter resonance mitigation technique for voltage source conver...
- Patent number 9,819,255
- Issue date Nov 14, 2017
- Rockwell Automation Technologies, Inc.
- Yogesh P. Patel
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Motor drive with LCL filter inductor with built-in passive damping...
- Patent number 9,800,134
- Issue date Oct 24, 2017
- Rockwell Automation Technologies, Inc.
- Yogesh P. Patel
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Motor drive with silicon carbide MOSFET switches
- Patent number 9,787,212
- Issue date Oct 10, 2017
- Rockwell Automation Technologies, Inc.
- Kevin Baumann
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power cell bypass method and apparatus for multilevel inverter
- Patent number 9,787,213
- Issue date Oct 10, 2017
- Rockwell Automation Technologies, Inc.
- Lixiang Wei
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Apparatus and method for automatic ground fault location determinat...
- Patent number 9,684,026
- Issue date Jun 20, 2017
- Rockwell Automation Technologies, Inc.
- Lixiang Wei
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Power converter resonance detection apparatus and method
- Patent number 9,667,128
- Issue date May 30, 2017
- Rockwell Automation Technologies, Inc.
- Yogesh Popatlal Patel
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
OPEN LOOP PHASE PRE-CHARGE
- Publication number 20220103090
- Publication date Mar 31, 2022
- Rockwell Automation Technologies, Inc.
- Lixiang Wei
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SWITCHING FREQUENCY AND PWM CONTROL TO EXTEND POWER CONVERTER LIFETIME
- Publication number 20220094259
- Publication date Mar 24, 2022
- Rockwell Automation Technologies, Inc.
- Yujia Cui
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
MOTOR STATOR RESISTANCE CALCULATION
- Publication number 20220065909
- Publication date Mar 3, 2022
- Rockwell Automation Technologies, Inc.
- Lixiang Wei
- G01 - MEASURING TESTING
Information Patent Application
SYSTEM AND METHOD FOR GROUND FAULT DETECTION
- Publication number 20210325478
- Publication date Oct 21, 2021
- Rockwell Automation Technologies, Inc.
- Jiangang Hu
- G01 - MEASURING TESTING
Information Patent Application
MULTI-SEGMENT AND NONLINEAR DROOP CONTROL FOR PARALLEL OPERATING AC...
- Publication number 20200313565
- Publication date Oct 1, 2020
- Rockwell Automation Technologies, Inc.
- Ahmed S. Mohamed Sayed Ahmed
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SCR BASED AC PRECHARGE PROTECTION
- Publication number 20190229521
- Publication date Jul 25, 2019
- Rockwell Automation Technologies, Inc.
- Andrew J. Roberts
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
METHOD AND APPARATUS FOR BYPASSING CASCADED H-BRIDGE (CHB) POWER CE...
- Publication number 20190214899
- Publication date Jul 11, 2019
- Rockwell Automation Technologies, Inc.
- Navid R. Zargari
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
AUTOMATIC SYSTEM GROUNDING CONDITION DETECTION
- Publication number 20190204374
- Publication date Jul 4, 2019
- Rockwell Automation Technologies, Inc.
- Lixiang Wei
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
POWER CONVERSION SYSTEM WITH CONDITIONER CAPACITOR DISCHARGE APPARATUS
- Publication number 20180183348
- Publication date Jun 28, 2018
- Rockwell Automation Technologies, Inc.
- Jiangang Hu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
MOTOR DRIVE WITH SILICON CARBIDE MOSFET SWITCHES
- Publication number 20180145602
- Publication date May 24, 2018
- Rockwell Automation Technologies, Inc.
- Lixiang Wei
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
METHOD AND APPARATUS FOR BYPASSING CASCADED H-BRIDGE (CHB) POWER CE...
- Publication number 20180145578
- Publication date May 24, 2018
- Rockwell Automation Technologies, Inc.
- Navid R. Zargari
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
APPARATUS FOR REDUCED VOLTAGE STRESS ON AC MOTORS AND CABLES
- Publication number 20180083514
- Publication date Mar 22, 2018
- Rockwell Automation Technologies, Inc.
- Yuan Xiao
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
MOTOR DRIVE WITH SILICON CARBIDE MOSFET SWITCHES
- Publication number 20180026544
- Publication date Jan 25, 2018
- Rockwell Automation Technologies, Inc.
- Kevin Baumann
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
MOTOR DRIVE WITH RESONANCE DETECTION AND IMPEDANCE COMPUTATION
- Publication number 20170353138
- Publication date Dec 7, 2017
- Rockwell Automation Technologies, Inc.
- Shaofeng Zhang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
PRECHARGE APPARATUS FOR POWER CONVERSION SYSTEM
- Publication number 20170353120
- Publication date Dec 7, 2017
- Rockwell Automation Technologies, Inc.
- Lixiang Wei
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
MOTOR DRIVE FILTER DAMPING
- Publication number 20170324333
- Publication date Nov 9, 2017
- Rockwell Automation Technologies, Inc.
- Yuan Xiao
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
COMPACT INDUCTOR
- Publication number 20170178782
- Publication date Jun 22, 2017
- Rockwell Automation Technologies, Inc.
- Xikai Sun
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SYSTEM AND METHOD FOR GROUND FAULT DETECTION
- Publication number 20170131341
- Publication date May 11, 2017
- Rockwell Automation Technologies, Inc.
- Jiangang Hu
- G01 - MEASURING TESTING
Information Patent Application
ACTIVE FRONT END POWER CONVERTER WITH BOOST MODE DERATING TO PROTEC...
- Publication number 20170025981
- Publication date Jan 26, 2017
- Rockwell Automation Technologies, Inc.
- Yogesh Patel
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
METHOD AND APPARATUS FOR BYPASSING CASCADED H-BRIDGE (CHB) POWER CE...
- Publication number 20160344278
- Publication date Nov 24, 2016
- Rockwell Automation Technologies, Inc.
- Navid R. Zargari
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
MOTOR DRIVE WITH LCL FILTER INDUCTOR WITH BUILT-IN PASSIVE DAMPING...
- Publication number 20160248334
- Publication date Aug 25, 2016
- Rockwell Automation Technologies, Inc.
- Yogesh P. Patel
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ADJUSTABLE PWM METHOD TO INCREASE LOW SPEED STARTING TORQUE AND INV...
- Publication number 20160126861
- Publication date May 5, 2016
- Rockwell Automation Technologies, Inc.
- Lixiang Wei
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER CELL BYPASS METHOD AND APPARATUS FOR MULTILEVEL INVERTER
- Publication number 20160111967
- Publication date Apr 21, 2016
- Rockwell Automation Technologies, Inc.
- Lixiang Wei
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
LCL FILTER RESONANCE MITIGATION TECHNIQUE FOR VOLTAGE SOURCE CONVER...
- Publication number 20160013715
- Publication date Jan 14, 2016
- Rockwell Automation Technologies, Inc.
- Yogesh P. Patel
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
METHODS AND POWER CONVERSION SYSTEM CONTROL APPARATUS TO CONTROL IG...
- Publication number 20160006367
- Publication date Jan 7, 2016
- Rockwell Automation Technologies, Inc.
- Lixiang Wei
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
APPARATUS AND METHOD FOR AUTOMATIC GROUND FAULT LOCATION DETERMINAT...
- Publication number 20150355262
- Publication date Dec 10, 2015
- Rockwell Automation Technologies, Inc.
- Jiangang Hu
- G01 - MEASURING TESTING
Information Patent Application
FILTER CAPACITOR DEGRADATION IDENTIFICATION USING MEASURED AND EXPE...
- Publication number 20150355259
- Publication date Dec 10, 2015
- Rockwell Automation Technologies, Inc.
- Christian Sartler
- G01 - MEASURING TESTING
Information Patent Application
MOTOR DRIVE WITH SILICON CARBIDE MOSFET SWITCHES
- Publication number 20150318791
- Publication date Nov 5, 2015
- Rockwell Automation Technologies, Inc.
- Kevin Baumann
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SYSTEMS AND METHODS FOR TESTING MOTOR DRIVES
- Publication number 20150253381
- Publication date Sep 10, 2015
- Rockwell Automation Technologies, Inc.
- Yogesh Patel
- G01 - MEASURING TESTING
Information Patent Application
DC PRE-CHARGE CIRCUIT
- Publication number 20150256112
- Publication date Sep 10, 2015
- Rockwell Automation Technologies, Inc.
- Bruce W. Weiss
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Lixiang Wei

Person

Patents Grantslast 30 patents

Open loop phase pre-charge

Transformerless parallel AFE with ground current regulator

System and method for ground fault detection

Motor stator resistance calculation

Switching frequency and PWM control to extend power converter lifetime

SCR based AC precharge protection

Multi-segment and nonlinear droop control for parallel operating ac...

Bootstrap charging by PWM control

Automatic system grounding condition detection

Power conversion system with PWM carrier emulation

Power conversion system and filter therefor

Motor drive with silicon carbide MOSFET switches

Apparatus for reduced voltage stress on AC motors and cables

Method and apparatus for bypassing Cascaded H-Bridge (CHB) power ce...

System and method for ground fault detection

Compact inductor

Common voltage reduction for active front end drives

Power conversion system with conditioner capacitor discharge apparatus

Converter lifetime improvement method for doubly fed induction gene...

Active front end power converter with boost mode derating to protec...

Motor drive with resonance detection and impedance computation

Motor drive filter damping

Method and apparatus for bypassing cascaded h-bridge (CHB) power ce...

Precharge apparatus for power conversion system

LCL filter resonance mitigation technique for voltage source conver...

Motor drive with LCL filter inductor with built-in passive damping...

Motor drive with silicon carbide MOSFET switches

Power cell bypass method and apparatus for multilevel inverter

Apparatus and method for automatic ground fault location determinat...

Power converter resonance detection apparatus and method

Patents Applicationslast 30 patents

OPEN LOOP PHASE PRE-CHARGE

SWITCHING FREQUENCY AND PWM CONTROL TO EXTEND POWER CONVERTER LIFETIME

MOTOR STATOR RESISTANCE CALCULATION

SYSTEM AND METHOD FOR GROUND FAULT DETECTION

MULTI-SEGMENT AND NONLINEAR DROOP CONTROL FOR PARALLEL OPERATING AC...

SCR BASED AC PRECHARGE PROTECTION

METHOD AND APPARATUS FOR BYPASSING CASCADED H-BRIDGE (CHB) POWER CE...

AUTOMATIC SYSTEM GROUNDING CONDITION DETECTION

POWER CONVERSION SYSTEM WITH CONDITIONER CAPACITOR DISCHARGE APPARATUS

MOTOR DRIVE WITH SILICON CARBIDE MOSFET SWITCHES

METHOD AND APPARATUS FOR BYPASSING CASCADED H-BRIDGE (CHB) POWER CE...

APPARATUS FOR REDUCED VOLTAGE STRESS ON AC MOTORS AND CABLES

MOTOR DRIVE WITH SILICON CARBIDE MOSFET SWITCHES

MOTOR DRIVE WITH RESONANCE DETECTION AND IMPEDANCE COMPUTATION

PRECHARGE APPARATUS FOR POWER CONVERSION SYSTEM

MOTOR DRIVE FILTER DAMPING

COMPACT INDUCTOR

SYSTEM AND METHOD FOR GROUND FAULT DETECTION

ACTIVE FRONT END POWER CONVERTER WITH BOOST MODE DERATING TO PROTEC...

METHOD AND APPARATUS FOR BYPASSING CASCADED H-BRIDGE (CHB) POWER CE...

MOTOR DRIVE WITH LCL FILTER INDUCTOR WITH BUILT-IN PASSIVE DAMPING...

ADJUSTABLE PWM METHOD TO INCREASE LOW SPEED STARTING TORQUE AND INV...

POWER CELL BYPASS METHOD AND APPARATUS FOR MULTILEVEL INVERTER

LCL FILTER RESONANCE MITIGATION TECHNIQUE FOR VOLTAGE SOURCE CONVER...

METHODS AND POWER CONVERSION SYSTEM CONTROL APPARATUS TO CONTROL IG...

APPARATUS AND METHOD FOR AUTOMATIC GROUND FAULT LOCATION DETERMINAT...

FILTER CAPACITOR DEGRADATION IDENTIFICATION USING MEASURED AND EXPE...

MOTOR DRIVE WITH SILICON CARBIDE MOSFET SWITCHES

SYSTEMS AND METHODS FOR TESTING MOTOR DRIVES

DC PRE-CHARGE CIRCUIT