General Electric Company

Carrier Corporation

Otis Elevator Company

United Technologies Corporation

Chubb Protection Corporation

Sikorsky Aircraft Corporation

Ge Energy Power Conversion Technology Gmbh

Utc Power Corporation

Pengju Kang

Alan Matthew Finn

Jian Zhou

Hai Qiu

Fei Xu

Mohsen Farzad

Payman Sadegh

Ying Liu

Pei-Yuan Peng

Dong Liu

Ronghui Zhou

Xiangming Shen

Xi Lu

Slaven Stricevic

Ziyou Xiong

Frederick James Cogswell

Dong Luo

Sivakumar Gopalnarayanan

Fengcheng Sun

Timothy P Galante

Lin Lin

Xu Chu

Yingqi Zhang

Jae-Hyuk Oh

Pengcheng Zhu

Christian Maria Netter

Heng Wu

Mauro Jorge Atalla

Baoming Huang

Meghna Misra

Jun Yang

Daryl J Marvin

Tobias H Sienel

Vladimir Blasko

Stella M Oggianu

Zhuohui Tan

Donald W Fowler

Saijun Mao

Tong Zhao

Julio I Concha

Wenqiang Yang

Bryan A Eisenhower

Xueqin Wu

Robert K Thornton

Norbert A M Hootsmans

Robert N Tomastik

Robert J Braun

Zili Cai

Craig Kersten

Ming Su

Xiao Chen

Muhammad Emadul Hasan

Thomas M Gillis

Christopher G Park

Fengchen Sun

Yong Li

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.

Electric drive system and energy management method

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.

Power supply management apparatus and method thereof

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. This invention also provides a method for supplying power to at least one load.

System and method for supplying power to at least one load

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.

Device and method to break the current in power transmission or distribution system

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.

Multi-source energy storage system and energy management and control method

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.

Electric vehicle with improved electric drive system

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.

System and method for fault protection of a motor

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.

Vehicle control system

The present invention describes a system and method for surveillance cameras that maintain proper mapping of a mapped region of interest with an imaged region of interest based on feedback received regarding the current orientation of a surveillance camera. The system or method first determines the location of the imaged region of interest within the surveillance camera's imaged current field of view based on mechanical or imaged feedback, or a combination of both. The system or method then remaps the mapped region of interest within the surveillance camera's imaged current field of view such that the mapped region of interest is coextensive with the imaged region of interest.

Method and device for consistent region of interest

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Yorktown Heights, NY, United States of America

Pengju Kang