Patents by Inventor Pengju Kang
Pengju Kang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11374508Abstract: An electric drive system includes an energy storage system (ESS), a power conversion system, and an alternating current (AC) traction system. The ESS provides or receives electric power. The ESS includes a first energy storage unit and a second energy storage unit. The power conversion system is electrically coupled to the ESS for converting an input power to an output power. The AC traction system is electrically coupled to the power conversion system for converting the output power of the power conversion system to mechanical torques. The AC traction system includes a first AC drive device and a second AC drive device. An energy management system (EMS) is in electrical communication with the ESS, the AC traction system, and the power conversion system for providing control signals.Type: GrantFiled: May 4, 2020Date of Patent: June 28, 2022Assignee: GENERAL ELECTRIC COMPANYInventors: Jian Zhou, Fei Xu, Dong Liu, Hai Qiu, Pengju Kang
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Patent number: 11225150Abstract: An apparatus comprising an onboard energy storage device, an onboard power conversion device configured to be electrically coupled to an external power source for receiving electrical power therefrom, and at least one drive system electrically coupled to the onboard energy storage device and the onboard power conversion device, wherein the onboard energy storage device and the onboard power conversion device cooperatively provide electrical power for the at least one drive system. A vehicle and a method for managing power supply are also disclosed.Type: GrantFiled: June 12, 2019Date of Patent: January 18, 2022Assignee: GENERAL ELECTRIC COMPANYInventors: Fei Li, Xi Lu, Jian Zhou, Pengju Kang, Ronghui Zhou, Xiangming Shen, Fengchen Sun, Hai Qiu
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Publication number: 20200266731Abstract: An electric drive system includes an energy storage system (ESS), a power conversion system, and an alternating current (AC) traction system. The ESS provides or receives electric power. The ESS includes a first energy storage unit and a second energy storage unit. The power conversion system is electrically coupled to the ESS for converting an input power to an output power. The AC traction system is electrically coupled to the power conversion system for converting the output power of the power conversion system to mechanical torques. The AC traction system includes a first AC drive device and a second AC drive device. An energy management system (EMS) is in electrical communication with the ESS, the AC traction system, and the power conversion system for providing control signals.Type: ApplicationFiled: May 4, 2020Publication date: August 20, 2020Applicant: General Electric CompanyInventors: Jian Zhou, Fei Xu, Dong Liu, Hai Qiu, Pengju Kang
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Patent number: 10673358Abstract: An electric drive system includes an energy storage system (ESS), a power conversion system, and an alternating current (AC) traction system. The ESS provides or receives electric power. The ESS includes a first energy storage unit and a second energy storage unit. The power conversion system is electrically coupled to the ESS for converting an input power to an output power. The AC traction system is electrically coupled to the power conversion system for converting the output power of the power conversion system to mechanical torques. The AC traction system includes a first AC drive device and a second AC drive device. An energy management system (EMS) is in electrical communication with the ESS, the AC traction system, and the power conversion system for providing control signals.Type: GrantFiled: June 6, 2019Date of Patent: June 2, 2020Assignee: GENERAL ELECTRIC COMPANYInventors: Jian Zhou, Fei Xu, Dong Liu, Hai Qiu, Pengju Kang
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Patent number: 10505468Abstract: It is a system for supplying power to at least one load. The system comprises at least one power source, load bank and control device coupled to the at least one load. The load bank is coupled to at least one power source and at least one load. The load bank comprises a controllable voltage source, at least three resistors coupled between an output side of the controllable voltage source and the at least one power source, and at least one storage element. The controllable voltage source comprises more than one switches. And the at least one storage element comprises one or more capacitors, batteries, or combinations thereof. The control device is configured for controlling the switches during a first condition such that, to the extent that an output power of the at least one power source exceeds a requisite power of the at least one load, any excess output power is either supplied to the at least one storage element or consumed by the at least three resistors.Type: GrantFiled: December 11, 2015Date of Patent: December 10, 2019Assignee: General Electric CompanyInventors: Pengju Kang, Xueqin Wu, Yingqi Zhang, Zhuohui Tan, Ming Su
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Publication number: 20190291594Abstract: An apparatus comprising an onboard energy storage device, an onboard power conversion device configured to be electrically coupled to an external power source for receiving electrical power therefrom, and at least one drive system electrically coupled to the onboard energy storage device and the onboard power conversion device, wherein the onboard energy storage device and the onboard power conversion device cooperatively provide electrical power for the at least one drive system. A vehicle and a method for managing power supply are also disclosed.Type: ApplicationFiled: June 12, 2019Publication date: September 26, 2019Applicant: General Electric CompanyInventors: Fei Li, Xi Lu, Jian Zhou, Pengju Kang, Ronghui Zhou, Xiangming Shen, Fengchen Sun, Hai Qiu
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Publication number: 20190288616Abstract: An electric drive system includes an energy storage system (ESS), a power conversion system, and an alternating current (AC) traction system. The ESS provides or receives electric power. The ESS includes a first energy storage unit and a second energy storage unit. The power conversion system is electrically coupled to the ESS for converting an input power to an output power. The AC traction system is electrically coupled to the power conversion system for converting the output power of the power conversion system to mechanical torques. The AC traction system includes a first AC drive device and a second AC drive device. An energy management system (EMS) is in electrical communication with the ESS, the AC traction system, and the power conversion system for providing control signals.Type: ApplicationFiled: June 6, 2019Publication date: September 19, 2019Applicant: General Electric CompanyInventors: Jian Zhou, Fei Xu, Dong Liu, Hai Qiu, Pengju Kang
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Patent number: 10374529Abstract: An electric drive system includes an energy storage system (ESS), a power conversion system, and an alternating current (AC) traction system. The ESS provides or receives electric power. The ESS includes a first energy storage unit and a second energy storage unit. The power conversion system is electrically coupled to the ESS for converting an input power to an output power. The AC traction system is electrically coupled to the power conversion system for converting the output power of the power conversion system to mechanical torques. The AC traction system includes a first AC drive device and a second AC drive device. An energy management system (EMS) is in electrical communication with the ESS, the AC traction system, and the power conversion system for providing control signals.Type: GrantFiled: March 8, 2017Date of Patent: August 6, 2019Assignee: GENERAL ELECTRIC COMPANYInventors: Jian Zhou, Fei Xu, Dong Liu, Hai Qiu, Pengju Kang
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Patent number: 10363823Abstract: An apparatus comprising an onboard energy storage device, an onboard power conversion device configured to be electrically coupled to an external power source for receiving electrical power therefrom, and at least one drive system electrically coupled to the onboard energy storage device and the onboard power conversion device, wherein the onboard energy storage device and the onboard power conversion device cooperatively provide electrical power for the at least one drive system. A vehicle and a method for managing power supply are also disclosed.Type: GrantFiled: September 17, 2013Date of Patent: July 30, 2019Assignee: GENERAL ELECTRIC COMPANYInventors: Fei Li, Xi Lu, Jian Zhou, Pengju Kang, Ronghui Zhou, Xiangming Shen, Fengcheng Sun, Hai Qiu
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Patent number: 10291158Abstract: An electric drive system includes an energy storage system (ESS), a power conversion system, and an alternating current (AC) traction system. The ESS provides or receives electric power. The ESS includes a first energy storage unit and a second energy storage unit. The power conversion system is electrically coupled to the ESS for converting an input power to an output power. The AC traction system is electrically coupled to the power conversion system for converting the output power of the power conversion system to mechanical torques. The AC traction system includes a first AC drive device and a second AC drive device. An energy management system (EMS) is in electrical communication with the ESS, the AC traction system, and the power conversion system for providing control signals.Type: GrantFiled: September 1, 2017Date of Patent: May 14, 2019Assignee: GENERAL ELECTRIC COMPANYInventors: Jian Zhou, Fei Xu, Dong Liu, Hai Qiu, Pengju Kang
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Patent number: 10256752Abstract: An electric drive system includes an energy storage system (ESS), a power conversion system, and an alternating current (AC) traction system. The ESS provides or receives electric power. The ESS includes a first energy storage unit and a second energy storage unit. The power conversion system is electrically coupled to the ESS for converting an input power to an output power. The AC traction system is electrically coupled to the power conversion system for converting the output power of the power conversion system to mechanical torques. The AC traction system includes a first AC drive device and a second AC drive device. An energy management system (EMS) is in electrical communication with the ESS, the AC traction system, and the power conversion system for providing control signals.Type: GrantFiled: September 1, 2017Date of Patent: April 9, 2019Assignee: GENERAL ELECTRIC COMPANYInventors: Jian Zhou, Fei Xu, Dong Liu, Hai Qiu, Pengju Kang
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Patent number: 10187056Abstract: A direct current (DC) circuit breaker for power transmission or distribution system includes a current sensor for sensing current of a system, a controller, a physical switch, and multiple switch modules. The multiple switch modules are electrically coupled to the current sensor and the physical switch in series. Each switch module includes multiple base elements electrically coupled in parallel. Each base element includes a first silicon carbide (SiC) metal-oxide-semiconductor field-effect transistor (MOSFET) and a second SiC MOSFET electrically coupled in an opposite series connection mode. The first and second SiC MOSFETs are configured in a synchronous rectification mode by channel reverse conduction control. The controller controls the multiple switch modules to connect current in the system, and break current of the multiple switch modules according to sensed current signals from the current sensor.Type: GrantFiled: May 21, 2014Date of Patent: January 22, 2019Assignee: GE ENERGY POWER CONVERSION TECHNOLOGY LIMITEDInventors: Pengju Kang, Saijun Mao, Fei Xu, Wenqiang Yang, Yingqi Zhang, Pengcheng Zhu
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Patent number: 10056755Abstract: A multi-source energy storage system, it includes a first energy storage system, a second energy storage system, and a second DC/DC converter and controller and a method for supplying power to an electrical load from multiple energy storage systems. The first energy storage system can be coupled to an electrical load. The second DC/DC converter and controller can be coupled between at least one of the following: a second energy storage system and a first energy storage system or electrical load. The controller settings control the first and second energy storage systems and the second DC/DC converter runs in both precharge mode and normal mode. In the precharge mode, the first energy storage system charges the second energy storage system via the second DC/DC converter. In normal mode, the second energy storage is coupled to the electrical load via the second DC/DC converter.Type: GrantFiled: March 31, 2016Date of Patent: August 21, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Fei Li, Pengcheng Zhu, Pengju Kang
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Publication number: 20170366112Abstract: An electric drive system includes an energy storage system (ESS), a power conversion system, and an alternating current (AC) traction system. The ESS provides or receives electric power, The ESS includes a first energy storage unit and a second energy storage unit. The power conversion system is electrically coupled to the ESS for converting an input power to an output power. The AC traction system is electrically coupled to the power conversion system for converting the output power of the power conversion system to mechanical torques. The AC traction system includes a first AC drive device and a second AC drive device. An energy management system (EMS) is in electrical communication with the ESS, the AC traction system, and the power conversion system for providing control signals.Type: ApplicationFiled: September 1, 2017Publication date: December 21, 2017Applicant: General Electric CompanyInventors: Jian Zhou, Fei Xu, Dong Liu, Hai Qiu, Pengju Kang
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Publication number: 20170353123Abstract: It is a system for supplying power to at least one load. The system comprises at least one power source, load bank and control device coupled to the at least one load. The load bank is coupled to at least one power source and at least one load. The load bank comprises a controllable voltage source, at least three resistors coupled between an output side of the controllable voltage source and the at least one power source, and at least one storage element. The controllable voltage source comprises more than one switches. And the at least one storage element comprises one or more capacitors, batteries, or combinations thereof. The control device is configured for controlling the switches during a first condition such that, to the extent that an output power of the at least one power source exceeds a requisite power of the at least one load, any excess output power is either supplied to the at least one storage element or consumed by the at least three resistors.Type: ApplicationFiled: December 11, 2015Publication date: December 7, 2017Inventors: Pengju KANG, Xueqin WU, Yingqi ZHANG, Zhuohui TAN, Ming SU
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Patent number: 9800182Abstract: An electric drive system includes an energy storage system (ESS), a power conversion system, and an alternating current (AC) traction system. The ESS provides or receives electric power. The ESS includes a first energy storage unit and a second energy storage unit. The power conversion system is electrically coupled to the ESS for converting an input power to an output power. The AC traction system is electrically coupled to the power conversion system for converting the output power of the power conversion system to mechanical torques. The AC traction system includes a first AC drive device and a second AC drive device. An energy management system (EMS) is in electrical communication with the ESS, the AC traction system, and the power conversion system for providing control signals.Type: GrantFiled: December 2, 2013Date of Patent: October 24, 2017Assignee: GENERAL ELECTRIC COMPANYInventors: Jian Zhou, Fei Xu, Dong Liu, Hai Qiu, Pengju Kang
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Patent number: 9780702Abstract: An apparatus includes at least one energy source and a drive system coupled to the at least one energy source. The drive system converts electrical power received from the at least one energy source and provides converted electrical power for driving at least one load. The drive system includes a first converter, a second converter, and a first switch module coupled to outputs of the first and second converters. When the apparatus is operating under a first mode, the first switch module is switched to assume a first state to allow a first output electrical power provided from the first converter and a second output electrical power provided from the second converter to be combined for driving a first load with the combined output electrical power.Type: GrantFiled: March 10, 2014Date of Patent: October 3, 2017Assignee: GENERAL ELECTRIC COMPANYInventors: Fei Li, Xi Lu, Jian Zhou, Pengju Kang, Ronghui Zhou, Xiangming Shen, Fengcheng Sun, Hai Qiu
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Patent number: 9742345Abstract: An exemplary motor driving system includes a power source, a driving circuit, a controller, a motor, and a protection circuit. The driving circuit including at least one switching device coupled with the power source. The motor includes a plurality of windings. The motor is coupled with the driving circuit and driven by the driving circuit. The controller is configured to provide first switch signals to the at least one switching device of the driving circuit in a normal mode. The protection circuit is coupled with the controller, and configured to generate second switch signals based at least in part on a fault signal in a fault mode and provide the second switch signals to the at least one switching device of the driving circuit so as to reconstruct circuit loops between the driving circuit and the plurality of windings. A method for operating the motor driving system is also described.Type: GrantFiled: August 3, 2016Date of Patent: August 22, 2017Assignee: GENERAL ELECTRIC COMPANYInventors: Fei Xu, Xu Chu, Pengju Kang, Heng Wu, Baoming Huang
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Publication number: 20170174098Abstract: An electric drive system includes energy storage system (ESS), a power conversion system, and an alternating cumin (AC) traction system. The ESS provides or receives electric power. The ESS includes a first energy storage unit and a second energy storage unit. The power conversion system is electrically coupled to the ESS for converting an input power to an output power. The AC traction system is electrically coupled to the power conversion system for converting the output power of the power convention system to mechanical torques. The AC traction system includes a first AC drive device and a second AC drive device. An energy management system (EMS) is in electrical communication with the ESS, the AC traction system, and the power conversion system for providing control signals.Type: ApplicationFiled: March 8, 2017Publication date: June 22, 2017Applicant: General Electric CompanyInventors: Jian Zhou, Fei Xu, Dong Liu, Hai Qiu, Pengju Kang
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Patent number: 9517696Abstract: A system includes a contactor system, a vehicle control unit, and a fault diagnostic system. The contactor system includes one or more contactors. The vehicle control unit is coupled to the contactor system via a first connection and a second connection. The vehicle control unit is configured to provide a controlling signal to the contactor system through at least one of the first connection and the second connection to control the one or more contactors. The fault diagnostic system is configured to identify faults occurring in the first connection and the second connection. A method is also provided.Type: GrantFiled: October 15, 2014Date of Patent: December 13, 2016Assignee: GENERAL ELECTRIC COMPANYInventors: Ronghui Zhou, Jian Zhou, Fei Li, Xi Lu, Fengcheng Sun, Xiangming Shen, Hai Qiu, Pengju Kang