公开(公告)号：US20190219032A1

公开(公告)日：2019-07-18

申请号：US15874124

申请日：2018-01-18

Applicant: General Electric Company

Inventor： Lijun He ,  Liwei Hao ,  John Mihok

IPC: F03D17/00 ,  F03D80/50 ,  F03D80/70 ,  G01M13/04

CPC classification number: F03D17/00 ,  F03D7/0224 ,  F03D80/50 ,  F03D80/70 ,  F05B2260/79 ,  F05B2260/80 ,  G01M13/04

Abstract: A system and method for monitoring a pitch system of a wind turbine includes monitoring, via one or more first sensors, at least one electrical condition of the pitch system. The method also includes monitoring, via one or more second sensors, at least one mechanical condition of the pitch system. Further, the method includes receiving, via a controller communicatively coupled to the one or more first and second sensors, sensor signals representing the at least one electrical condition and the at least one mechanical condition of the pitch system. Thus, the method includes determining, via the controller, a bearing condition of a pitch bearing of the pitch system based on the at least one electrical condition and the at least one mechanical condition of the pitch system.

公开(公告)号：US10283804B2

公开(公告)日：2019-05-07

申请号：US15331421

申请日：2016-10-21

Applicant: General Electric Company

Inventor： Keith Garrette Brown ,  Liwei Hao ,  Darren Bawden Hickey ,  Kevin Joseph Gavel ,  John Raymond Krahn ,  Qin Chen ,  Lili Zhang ,  Daniel Qi Tan

IPC: H01M8/2485 ,  H01M8/2484 ,  H01M8/2465 ,  F16L25/02 ,  F16L55/24 ,  H01M8/0662 ,  F16L25/00 ,  H01M8/124

Abstract: A flange assembly for use with a SOFC system includes a first flange, a second flange, and a dielectric element coupled between the first flange and the second flange. The dielectric element includes an outer cylindrical surface and an inner cylindrical surface. The inner cylindrical surface defines a cylindrical region having a circumference. The inner cylindrical surface also defines a channel that extends radially about the circumference of the cylindrical region.

公开(公告)号：US10273940B2

公开(公告)日：2019-04-30

申请号：US15152664

申请日：2016-05-12

Applicant: General Electric Company

Inventor： Di Pan ,  Liwei Hao ,  Lijun He ,  Stefan Grubic

IPC: G06F11/00 ,  F03D17/00 ,  F03D7/02 ,  F03D80/70

Abstract: The present disclosure is directed to a system and method for detecting damage of a pitch bearing of a wind turbine. The pitch bearing is part of a pitch drive system having a plurality of pitch drive motors. The method includes measuring at least one electrical signal of the pitch drive system. The method also includes processing the electrical signal(s) of the pitch drive system and comparing the electrical signals of the pitch drive system with a baseline threshold. Thus, the method also includes determining whether damage is present in the pitch bearing based, at least in part, on the comparison, wherein the electrical signal(s) exceeding the baseline threshold is indicative of damage in the pitch bearing.