Inventor · disambiguated record
Huaqiang Li
Also filed as: LI HUAQIANG
42 granted patents·4 pending applications·154 citations·filing 2009–2024
97Inventor score
Files withEATON INTELLIGENT POWER LTD21EATON CORP15LI HUAQIANG4HARRISON MICHAEL JOHN3FAMILIANT YAKOV LVOVICH2
Top patents by PatentIndex Score
46 records- 0194US11967891B2Mitigation of harmonic disturbances in a power converterEATON INTELLIGENT POWER LTD·Filed 2022·Granted Apr 23, 2024·2 cites·17 claims
- 0294US9046560B2System and method for high resistance ground fault detection and protection in power distribution systemsLI HUAQIANG·Filed 2012·Granted Jun 2, 2015·16 cites·17 claims
- 0394US8796982B2System and method for detecting phase loss and diagnosing DC link capacitor health in an adjustable speed driveLI HUAQIANG·Filed 2011·Granted Aug 5, 2014·15 cites·20 claims
- 0493US9667177B1System and method for operating a three-phase load from a single phase sourceEATON CORP·Filed 2015·Granted May 30, 2017·8 cites·21 claims
- 0593US9595889B2System and method for single-phase and three-phase current determination in power converters and invertersEATON CORP·Filed 2013·Granted Mar 14, 2017·15 cites·21 claims
- 0691US11177648B2System and method for compact motor control with redundant power structuresEATON INTELLIGENT POWER LTD·Filed 2017·Granted Nov 16, 2021·4 cites·21 claims
- 0791US9673695B1System and method for intelligent circuit breaking in adjustable speed drivesEATON CORP·Filed 2016·Granted Jun 6, 2017·17 cites·20 claims
- 0890US9160161B2System and method for ground fault detection and protection in adjustable speed drivesLI HUAQIANG·Filed 2012·Granted Oct 13, 2015·10 cites·24 claims
- 0989US9525377B2System and method of rotor time constant online identification in an AC induction machineEATON CORP·Filed 2015·Granted Dec 20, 2016·4 cites·20 claims
- 1088US9166469B2System for optimizing switching dead-time and method of making sameFAMILIANT YAKOV LVOVICH·Filed 2012·Granted Oct 20, 2015·12 cites·17 claims
- 1186US11444562B2Determining an initial position of a rotor of a permanent magnet synchronous machineEATON INTELLIGENT POWER LTD·Filed 2020·Granted Sep 13, 2022·2 cites·20 claims
- 1286US11205979B2Fault tolerant motor and zone controller apparatusEATON INTELLIGENT POWER LTD·Filed 2020·Granted Dec 21, 2021·2 cites·20 claims
- 1385US10594246B2Board-level motor control system with integrated protection and control componentsEATON CORP·Filed 2017·Granted Mar 17, 2020·6 cites·20 claims
- 1484US11418141B2Hybrid drive apparatusEATON INTELLIGENT POWER LTD·Filed 2020·Granted Aug 16, 2022·2 cites·22 claims
- 1583US10333455B2System and method for consistent speed regulation in a variable frequency driveEATON CORP·Filed 2016·Granted Jun 25, 2019·4 cites·20 claims
- 1681US11152780B2Adjustable speed drive with integrated solid-state circuit breaker and method of operation thereofEATON INTELLIGENT POWER LTD·Filed 2017·Granted Oct 19, 2021·3 cites·20 claims
- 1780US12113458B2Drive system with common DC busEATON INTELLIGENT POWER LTD·Filed 2021·Granted Oct 8, 2024·1 cites·21 claims
- 1878US11777305B2Protection of an electrical apparatusEATON INTELLIGENT POWER LTD·Filed 2022·Granted Oct 3, 2023·0 cites·20 claims
- 1977US12034292B2Adjustable speed drive with integrated solid-state circuit breaker and method of operation thereofEATON INTELLIGENT POWER LTD·Filed 2023·Granted Jul 9, 2024·0 cites·20 claims
- 2077US10355585B2Variable frequency drive circuit with overvoltage protectionEATON CORP·Filed 2015·Granted Jul 16, 2019·4 cites·20 claims
- 2177US10333444B2System and method for stability control in adjustable speed drive with DC link thin film capacitorEATON CORP·Filed 2017·Granted Jun 25, 2019·2 cites·20 claims
- 2277US9608440B2Methods and apparatus for determining power distribution system topology using disturbance detectionFAMILIANT YAKOV LVOVICH·Filed 2011·Granted Mar 28, 2017·6 cites·18 claims
- 2377US9024569B2System and method of rotor time constant online identification in an AC induction machineEATON CORP·Filed 2013·Granted May 5, 2015·3 cites·20 claims
- 2474US11843331B2Determining an initial position of a rotor of a permanent magnet synchronous machineEATON INTELLIGENT POWER LTD·Filed 2022·Granted Dec 12, 2023·0 cites·20 claims
- 2574US8994320B2System and method for controlling regenerating energy in an adjustable speed driveEATON CORP·Filed 2013·Granted Mar 31, 2015·3 cites·20 claims
- 2673US11631973B2Adjustable speed drive with integrated solid-state circuit breaker and method of operation thereofEATON INTELLIGENT POWER LTD·Filed 2021·Granted Apr 18, 2023·0 cites·20 claims
- 2773US9998060B2System and method for capacitor fault energy interruption in adjustable speed drivesEATON CORP·Filed 2016·Granted Jun 12, 2018·1 cites·20 claims
- 2871US12021444B2System and method for compact motor control with redundant power structuresEATON INTELLIGENT POWER LTD·Filed 2021·Granted Jun 25, 2024·0 cites·20 claims
- 2971US11063550B2Active harmonic filter and regenerating energy control apparatus and method of operationEATON INTELLIGENT POWER LTD·Filed 2019·Granted Jul 13, 2021·1 cites·20 claims
- 3070US11038340B2Soft-starter AC-AC converter with integrated solid-state circuit breaker and method of operation thereofEATON INTELLIGENT POWER LTD·Filed 2017·Granted Jun 15, 2021·1 cites·17 claims
- 3170US9568209B2System and method for controlling output flow of parallel connected blowersEATON CORP·Filed 2013·Granted Feb 14, 2017·5 cites·20 claims
- 3269US11437806B2Protection of an electrical apparatusEATON INTELLIGENT POWER LTD·Filed 2020·Granted Sep 6, 2022·0 cites·19 claims
- 3367US8988035B2System for determining a magnetizing curve and rotor resistance of an induction machine and method of making sameEATON CORP·Filed 2012·Granted Mar 24, 2015·2 cites·21 claims
- 3465US10377598B2Dynamic performance and active damping methods in web winder tension control systemsEATON CORP·Filed 2017·Granted Aug 13, 2019·1 cites·20 claims
- 3558US9203326B2Feed forward control for a cyclo-converterHARRISON MICHAEL JOHN·Filed 2011·Granted Dec 1, 2015·1 cites·22 claims
- 3658US9143031B2Power factor control of a cyclo-converterHARRISON MICHAEL JOHN·Filed 2011·Granted Sep 22, 2015·1 cites·37 claims
- 3757US2024258934A1Extending capacitor lifetime in a power converterEATON INTELLIGENT POWER LTD·Filed 2023·Application pending·0 cites
- 3856US12209301B1Device for surface strengthening of metal plate based ultrasonic vibrationUNIV INNER MONGOLIA TECHNOLOGY·Filed 2024·Granted Jan 28, 2025·0 cites·5 claims
- 3955US2023378744A1Motor control device with solid state circuit breakerEATON INTELLIGENT POWER LTD·Filed 2023·Application pending·0 cites
- 4052US9515598B2System and method for controlling regenerating energy in an adjustable speed driveEATON CORP·Filed 2015·Granted Dec 6, 2016·0 cites·20 claims
- 4151US11139649B2Motor control system with integrated solid-state contactor and relays and method of operation thereofEATON INTELLIGENT POWER LTD·Filed 2017·Granted Oct 5, 2021·0 cites·20 claims
- 4250US11575256B2Matrix converter with solid state circuit breakerEATON INTELLIGENT POWER LTD·Filed 2018·Granted Feb 7, 2023·0 cites·13 claims
- 4347US2024186912A1Voltage boosting rectifier circuitEATON INTELLIGENT POWER LTD·Filed 2022·Application pending·0 cites
- 4444US11791619B2Motor control device with solid state circuit breakerEATON INTELLIGENT POWER LTD·Filed 2018·Granted Oct 17, 2023·0 cites·11 claims
- 4539US9036373B2Closed loop control of a cyclo-converterHARRISON MICHAEL JOHN·Filed 2011·Granted May 19, 2015·0 cites·31 claims
- 4634US2010109616A1System and method for reactive power compensation and flicker managementLI HUAQIANG·Filed 2009·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →