Inventor · disambiguated record
Zhongyuan Cheng
Also filed as: CHENG ZHONGYUAN
33 granted patents·4 pending applications·429 citations·filing 2008–2023
97Inventor score
Top patents by PatentIndex Score
37 records- 0198US9812990B1Spare on demand power cells for modular multilevel power converterROCKWELL AUTOMATION TECH INC·Filed 2016·Granted Nov 7, 2017·18 cites·20 claims
- 0298US8619446B2Cascaded H-bridge (CHB) inverter level shift PWM with rotationLIU JINGBO·Filed 2012·Granted Dec 31, 2013·55 cites·20 claims
- 0397US8982593B2Cascaded H-Bridge (CHB) inverter level shift PWM with rotationROCKWELL AUTOMATION TECH INC·Filed 2013·Granted Mar 17, 2015·27 cites·20 claims
- 0496US11342878B1Regenerative medium voltage drive (Cascaded H Bridge) with reduced number of sensorsROCKWELL AUTOMATION TECH INC·Filed 2021·Granted May 24, 2022·8 cites·21 claims
- 0596US7990097B2Power conversion system and method for active damping of common mode resonanceROCKWELL AUTOMATION TECH INC·Filed 2008·Granted Aug 2, 2011·74 cites·31 claims
- 0695US9748862B2Sparse matrix multilevel actively clamped power converterROCKWELL AUTOMATION TECH INC·Filed 2015·Granted Aug 29, 2017·14 cites·13 claims
- 0795US9325252B2Multilevel converter systems and sinusoidal pulse width modulation methodsNARIMANI MEHDI·Filed 2014·Granted Apr 26, 2016·28 cites·20 claims
- 0895US9083230B2Multilevel voltage source converters and systemsNARIMANI MEHDI·Filed 2013·Granted Jul 14, 2015·36 cites·23 claims
- 0994US9054589B2Method and apparatus for detecting power converter capacitor degradation using negative sequence currentsROCKWELL AUTOMATION TECH INC·Filed 2012·Granted Jun 9, 2015·16 cites·21 claims
- 1094US8810182B2Adaptive harmonic reduction apparatus and methodsZHOU HUA·Filed 2012·Granted Aug 19, 2014·14 cites·22 claims
- 1194US8223511B2Common mode voltage reduction apparatus and method for current source converter based driveCHENG ZHONGYUAN·Filed 2010·Granted Jul 17, 2012·22 cites·15 claims
- 1293US9559541B2Modular multilevel converter and charging circuit thereforCHENG ZHONGYUAN·Filed 2015·Granted Jan 31, 2017·19 cites·20 claims
- 1393US8471514B2Adaptive harmonic reduction apparatus and methodsZARGARI NAVID·Filed 2010·Granted Jun 25, 2013·22 cites·30 claims
- 1491US9425705B2Method and apparatus for bypassing cascaded H-bridge (CHB) power cells and power sub cell for multilevel inverterROCKWELL AUTOMATION TECH INC·Filed 2015·Granted Aug 23, 2016·6 cites·18 claims
- 1590US9520800B2Multilevel converter systems and methods with reduced common mode voltageTIAN KAI·Filed 2014·Granted Dec 13, 2016·20 cites·17 claims
- 1686US9372172B2Systems and methods for detecting partial discharge in electrical componentsROCKWELL AUTOMATION TECH INC·Filed 2015·Granted Jun 21, 2016·4 cites·20 claims
- 1785US8379417B2Power converter and integrated DC choke thereforROCKWELL AUTOMATION TECH INC·Filed 2011·Granted Feb 19, 2013·5 cites·20 claims
- 1884US11211879B2Capacitor size reduction and lifetime extension for cascaded H-bridge drivesROCKWELL AUTOMATION TECH INC·Filed 2019·Granted Dec 28, 2021·5 cites·20 claims
- 1982US9362839B2Power converter with common mode voltage reductionWEI LIXANG·Filed 2011·Granted Jun 7, 2016·9 cites·13 claims
- 2080US8476859B2DC power for SGCT devices using a high frequency current loop with multiple current transformersBORTOLUS ANGELO·Filed 2010·Granted Jul 2, 2013·8 cites·20 claims
- 2178US9923469B2Motor drive filter dampingROCKWELL AUTOMATION TECH INC·Filed 2016·Granted Mar 20, 2018·3 cites·19 claims
- 2273US9831846B2Power conversion systemROCKWELL AUTOMATION TECH INC·Filed 2016·Granted Nov 28, 2017·2 cites·20 claims
- 2372US8400085B2Dynamic braking for current source converter based driveRINEH GHODRATOLLAH ESMAEILI·Filed 2010·Granted Mar 19, 2013·8 cites·25 claims
- 2467US8537575B2Power converter and integrated DC choke thereforXIAO YUAN·Filed 2013·Granted Sep 17, 2013·1 cites·20 claims
- 2564US9627994B2Cascaded H-bridge (CHB) inverter level shift PWM with rotationROCKWELL AUTOMATION TECH INC·Filed 2015·Granted Apr 18, 2017·1 cites·20 claims
- 2662US12306266B2Measuring DC link capacitance in power conversion systemsROCKWELL AUTOMATION TECH INC·Filed 2023·Granted May 20, 2025·0 cites·20 claims
- 2762US11437938B2Systems and methods of multi-motor regenerative driveROCKWELL AUTOMATION TECH INC·Filed 2020·Granted Sep 6, 2022·0 cites·20 claims
- 2861US9304111B2Systems and methods for detecting partial discharge in electrical componentsROCKWELL AUTOMATION TECH INC·Filed 2013·Granted Apr 5, 2016·1 cites·20 claims
- 2960US2019214899A1Method and apparatus for bypassing cascaded h-bridge (chb) power cells and power sub cell for multilevel inverterROCKWELL AUTOMATION TECH INC·Filed 2019·Application pending·0 cites
- 3058US10305368B2Method and apparatus for bypassing Cascaded H-Bridge (CHB) power cells and power sub cell for multilevel inverterROCKWELL AUTOMATION TECH INC·Filed 2018·Granted May 28, 2019·0 cites·6 claims
- 3157US7965526B2Self powered supply for power converter switch driverROCKWELL AUTOMATION TECH INC·Filed 2009·Granted Jun 21, 2011·3 cites·17 claims
- 3255US9912221B2Method and apparatus for bypassing cascaded h-bridge (CHB) power cells and power sub cell for multilevel inverterROCKWELL AUTOMATION TECH INC·Filed 2016·Granted Mar 6, 2018·0 cites·12 claims
- 3346US11469685B2Filter and AFE power cell phase controlROCKWELL AUTOMATION TECH INC·Filed 2020·Granted Oct 11, 2022·0 cites·17 claims
- 3444US9653910B2Power structure diagnostic method and apparatus for improved motor drive diagnostic coverageROCKWELL AUTOMATION TECH INC·Filed 2015·Granted May 16, 2017·0 cites·19 claims
- 3540US2013063991A1Voltage converter configurations for solar energy system applicationsXIAO YUAN·Filed 2012·Application pending·0 cites
- 3639US2021058003A1Filter and afe power cell phase controlROCKWELL AUTOMATION TECH INC·Filed 2019·Application pending·0 cites
- 3736US2018091058A1Multiphase multilevel power converter, control apparatus and methods to control harmonics during bypass operationROCKWELL AUTOMATION TECH INC·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →