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Patent Agency Ranking
公开(公告)号：US11629701B2
公开(公告)日：2023-04-18
申请号：US16614530
申请日：2017-05-18
Applicant: General Electric Company
Inventor： Longhui Shen , Chengjun Wang
Abstract: A method for estimating a temperature of a motor of a pitch drive mechanism of a rotor blade of a wind turbine includes monitoring, via at least one sensor, an actual temperature and at least one additional operating condition of the motor during a normal operating period of the wind turbine. The method also includes storing, via a pitch controller, the monitored temperatures and the monitored additional operating conditions of the motor for the normal operating period. Further, the method includes determining a relationship between the monitored temperatures and the monitored additional operating conditions of the motor for the normal operating period. Thus, in the event that the sensor fails to operate, the method includes determining, via the pitch controller, an estimated temperature of the motor based on the relationship.
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公开(公告)号：US20170268485A1
公开(公告)日：2017-09-21
申请号：US15463031
申请日：2017-03-20
Applicant: General Electric Company
Inventor： Longhui Shen , Jeffrey Alan Melius , Chengjun Wang
CPC classification number: F03D7/0224 , F03D1/0675 , F03D17/00 , F05B2260/76 , F05B2270/107 , F05B2270/337 , F05B2270/502 , F05B2270/504 , F05B2270/602 , H02H3/202 , H02H9/041 , Y02E10/721 , Y02E10/723
Abstract: Systems and methods for controlling a wind pitch adjustment system associated with a wind turbine system are disclosed. In one embodiment, the wind pitch adjustment system can include a power supply configured to convert an alternating current input signal into a direct current voltage, a controller configured to receive a signal from the power supply, and to provide one or more control commands to a pitch adjustment motor, and a surge stopping device comprising a switching element coupled between the power supply and the controller. The surge stopping device is configured to monitor an input voltage from a grid and to drive the switching element based at least in part on the monitored input voltage, such that the switching element is configured to block current flow through the switching element to the controller when the monitored input voltage is above a voltage threshold.
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公开(公告)号：US10408191B2
公开(公告)日：2019-09-10
申请号：US15463031
申请日：2017-03-20
Applicant: General Electric Company
Inventor： Longhui Shen , Jeffrey Alan Melius , Chengjun Wang
Abstract: Systems and methods for controlling a wind pitch adjustment system associated with a wind turbine system are disclosed. In one embodiment, the wind pitch adjustment system can include a power supply configured to convert an alternating current input signal into a direct current voltage, a controller configured to receive a signal from the power supply, and to provide one or more control commands to a pitch adjustment motor, and a surge stopping device comprising a switching element coupled between the power supply and the controller. The surge stopping device is configured to monitor an input voltage from a grid and to drive the switching element based at least in part on the monitored input voltage, such that the switching element is configured to block current flow through the switching element to the controller when the monitored input voltage is above a voltage threshold.
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公开(公告)号：US08907716B2
公开(公告)日：2014-12-09
申请号：US13767641
申请日：2013-02-14
Applicant: General Electric Company
Inventor： Jun Zhu , Robert Gregory Wagoner , Huibin Zhu , Chengjun Wang
IPC: H03K17/687 , H03K17/56
CPC classification number: H03K17/56 , H03K17/08128
Abstract: A device includes a controller configured to regulate one or more voltages applied to a gate of an insulated gate bipolar transistor (IGBT). The controller is configured to receive one or more voltage values associated with the IGBT, and generate a gating signal and transmit the gating signal to the IGBT. The gating signal is configured to activate or deactivate the IGBT. The controller is configured to generate a voltage clamping signal and transmit the voltage clamping signal to activate or deactivate an active switching device. The active switching device is configured to periodically limit the one or more voltage values associated with the IGBT based at least in part on one or more characteristics of the voltage clamping signal.
Abstract translation: 一种器件包括被配置为调节施加到绝缘栅双极晶体管（IGBT）的栅极的一个或多个电压的控制器。 控制器被配置为接收与IGBT相关联的一个或多个电压值，并产生选通信号并将选通信号发送到IGBT。 门控信号被配置为激活或禁用IGBT。 控制器被配置为产生电压钳位信号并传送电压钳位信号以激活或去激活有源开关器件。 有源开关装置被配置为至少部分地基于电压钳位信号的一个或多个特性周期性地限制与IGBT相关联的一个或多个电压值。
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公开(公告)号：US20140184308A1
公开(公告)日：2014-07-03
申请号：US13767641
申请日：2013-02-14
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Jun Zhu , Robert Gregory Wagoner , Huibin Zhu , Chengjun Wang
IPC: H03K17/56
CPC classification number: H03K17/56 , H03K17/08128
Abstract: A device includes a controller configured to regulate one or more voltages applied to a gate of an insulated gate bipolar transistor (IGBT). The controller is configured to receive one or more voltage values associated with the IGBT, and generate a gating signal and transmit the gating signal to the IGBT. The gating signal is configured to activate or deactivate the IGBT. The controller is configured to generate a voltage clamping signal and transmit the voltage clamping signal to activate or deactivate an active switching device. The active switching device is configured to periodically limit the one or more voltage values associated with the IGBT based at least in part on one or more characteristics of the voltage clamping signal.
Abstract translation: 一种器件包括被配置为调节施加到绝缘栅双极晶体管（IGBT）的栅极的一个或多个电压的控制器。 控制器被配置为接收与IGBT相关联的一个或多个电压值，并产生选通信号并将选通信号发送到IGBT。 门控信号被配置为激活或禁用IGBT。 控制器被配置为产生电压钳位信号并传送电压钳位信号以激活或去激活有源开关器件。 有源开关装置被配置为至少部分地基于电压钳位信号的一个或多个特性周期性地限制与IGBT相关联的一个或多个电压值。
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