公开(公告)号：US20180210031A1

公开(公告)日：2018-07-26

申请号：US15861707

申请日：2018-01-04

Applicant: General Electric Company

Inventor： Marius Michael MECHLINSKI ,  Stefan SCHROEDER ,  Jie SHEN ,  Fan ZHANG ,  Zhihui YUAN

IPC: G01R31/327 ,  H02H3/20 ,  H02H3/08 ,  H02H5/04

CPC classification number: G01R31/3275 ,  H02H3/08 ,  H02H3/20 ,  H02H5/04 ,  H02M1/088 ,  H02M1/32 ,  H02M2001/322 ,  H03K17/102 ,  H03K2217/0027

Abstract: A method for protecting a circuit is provided, wherein the circuit comprises a plurality of switch devices connected in series. The method comprises detecting a failure risk indicator of each switch device; determining whether each switch device has a failure risk based on the corresponding failure risk indicator; and making each of the switch device(s) having the failure risk in a constant on-state to eliminate the failure risk and prevent a failure of the switch device optionally if a number of the switch device(s) which have or had the failure risk is less than or equal to a preset value.

公开(公告)号：US20150009729A1

公开(公告)日：2015-01-08

申请号：US14323396

申请日：2014-07-03

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Tao WU ,  Ying ZHANG ,  Laigui QIN ,  Yingqi ZHANG ,  Fan ZHANG ,  Xin HAO

IPC: H02M1/32

CPC classification number: H02M1/32 ,  H02H7/1203 ,  H02M2001/325 ,  H03K17/107

Abstract: A circuit includes a switching module, a control module, and a driving module. The driving module is electrically coupled between the control module and the switching module for generating a driving signal. The driving module includes a normal driving unit and a fault protection unit. The normal driving unit is for turning on and off the switching module according to a first command signal from the control module. The fault protection unit is for lowering the driving signal from a driving value to a protection value according to a second command signal from the control module during a fault protection period after the control module receives a fault signal.

Abstract translation: 电路包括开关模块，控制模块和驱动模块。 驱动模块电耦合在控制模块和开关模块之间，用于产生驱动信号。 驱动模块包括正常驱动单元和故障保护单元。 正常驱动单元用于根据来自控制模块的第一命令信号来打开和关闭切换模块。 该故障保护单元用于在控制模块接收故障信号之后的故障保护期间，根据来自控制模块的第二命令信号，将驱动信号从驱动值降低到保护值。

公开(公告)号：US20180323697A1

公开(公告)日：2018-11-08

申请号：US15772953

申请日：2016-10-25

Applicant: General Electric Company

Inventor： Zhihui YUAN ,  Richard S. ZHANG ,  Stefan SCHROEDER ,  Yingqi ZHANG ,  Jie SHEN ,  Fan ZHANG

IPC: H02M1/32 ,  H03K17/081 ,  H02M5/458 ,  H02M1/088

CPC classification number: H02M1/32 ,  H02M1/088 ,  H02M5/4585 ,  H02M2001/325 ,  H03K17/08104 ,  H03K17/08116 ,  H03K17/107 ,  H03K17/127

Abstract: A method for controlling a plurality of series connected switch modules each including at least two parallel connected electronic switches, the method includes the step of, in response to failure of any electronic switch of one or more switch modules, turning on any non-faulty electronic switch of one or more faulty switch modules when the electronic switches of other non-faculty switch modules are controlled to be turned on.