公开(公告)号：US11374508B2

公开(公告)日：2022-06-28

申请号：US16866028

申请日：2020-05-04

Applicant: General Electric Company

Inventor： Jian Zhou ,  Fei Xu ,  Dong Liu ,  Hai Qiu ,  Pengju Kang

IPC: H02P4/00 ,  B60L7/18 ,  B60L15/20 ,  B60L50/40 ,  B60L50/30 ,  B60L50/51 ,  B60L58/20 ,  B60L50/64 ,  H02J7/02 ,  B60L15/38 ,  H02K17/02 ,  H02J7/34

Abstract: 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.

公开(公告)号：US11014178B2

公开(公告)日：2021-05-25

申请号：US15658855

申请日：2017-07-25

Applicant: General Electric Company

Inventor： Dong Liu ,  Andrew Lee Trimmer ,  Yuanfeng Luo ,  Steven Robert Hayashi

IPC: B23H1/04 ,  B23H7/30 ,  B23H1/02 ,  B23H7/26 ,  B23Q5/28 ,  B23H5/04 ,  B65H35/00 ,  B23H7/18

Abstract: An electrical machining method comprises machining a workpiece by an electrical machining device comprising an electrode; increasing a feedrate of the electrode at a first acceleration if a discharge current passing through the electrode and the workpiece is lower than a discharge current reference; and decreasing the feedrate of the electrode at a second acceleration if the discharge current is higher than the discharge current reference, wherein the second acceleration has an absolute value higher than that of the first acceleration.

公开(公告)号：US20200266731A1

公开(公告)日：2020-08-20

申请号：US16866028

申请日：2020-05-04

Applicant: General Electric Company

Inventor： Jian Zhou ,  Fei Xu ,  Dong Liu ,  Hai Qiu ,  Pengju Kang

IPC: H02P4/00 ,  H02K17/02 ,  B60L15/38 ,  B60L50/64 ,  B60L58/20 ,  B60L50/51 ,  B60L50/30 ,  B60L50/40 ,  B60L15/20 ,  B60L7/18

Abstract: 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.

公开(公告)号：US20170174098A1

公开(公告)日：2017-06-22

申请号：US15453218

申请日：2017-03-08

Applicant: General Electric Company

Inventor： Jian Zhou ,  Fei Xu ,  Dong Liu ,  Hai Qiu ,  Pengju Kang

IPC: B60L15/38 ,  H02P4/00 ,  B60L11/16 ,  H02K17/02 ,  H02J7/02 ,  B60L11/00 ,  B60L11/18 ,  H02P6/04

CPC classification number: H02P4/00 ,  B60L7/18 ,  B60L15/20 ,  B60L15/2081 ,  B60L15/209 ,  B60L15/38 ,  B60L50/30 ,  B60L50/40 ,  B60L50/51 ,  B60L50/64 ,  B60L58/20 ,  B60L2240/421 ,  B60L2240/423 ,  H02J7/022 ,  H02J7/345 ,  H02K17/02 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7022 ,  Y02T10/7066 ,  Y02T10/72 ,  Y02T10/7275 ,  Y02T90/16

Abstract: 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.