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公开(公告)号：US10389230B2
公开(公告)日：2019-08-20
申请号：US15903710
申请日：2018-02-23
Applicant: General Electric Company
Inventor： Saijun Mao , Stefan Schroeder , Jingkui Shi , He Xu , Marius Michael Mechlinski , Bo Qu , Zhihui Yuan , Yingqi Zhang , Jie Shen
IPC: H02M1/34 , H03K17/0814 , H03K17/10 , H02M3/158
Abstract: The present disclosure relates to a snubber circuit which comprises a static snubber unit, connected in parallel with the switch, for balancing a static voltage sharing across a switch when the switch is in a state of turn-on or turn-off; and a dynamic snubber unit for balance a dynamic voltage sharing across the switch when the switch is in a process of turn-on or turn-off, comprising a dynamic voltage sharing capacitor connected in parallel with the switch and having a relationship between a capacitance and a voltage of the dynamic voltage sharing capacitor; and a controller for controlling the capacitance of the dynamic voltage sharing capacitor to be in a predetermined working area of capacitance rising while the voltage across the switch is increasing. The present disclosure also relates to a power semiconductor device.
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公开(公告)号：US20180287487A1
公开(公告)日：2018-10-04
申请号：US15903710
申请日：2018-02-23
Applicant: General Electric Company
Inventor： Saijun Mao , Stefan Schroeder , Jingkui Shi , He Xu , Marius Michael Mechlinski , Bo Qu , Zhihui Yuan , Yingqi Zhang , Jie Shen
CPC classification number: H02M1/34 , H02M3/158 , H02M2001/344 , H02M2001/348 , H03K17/08142 , H03K17/102
Abstract: The present disclosure relates to a snubber circuit which comprises a static snubber unit, connected in parallel with the switch, for balancing a static voltage sharing across a switch when the switch is in a state of turn-on or turn-off; and a dynamic snubber unit for balance a dynamic voltage sharing across the switch when the switch is in a process of turn-on or turn-off, comprising a dynamic voltage sharing capacitor connected in parallel with the switch and having a relationship between a capacitance and a voltage of the dynamic voltage sharing capacitor; and a controller for controlling the capacitance of the dynamic voltage sharing capacitor to be in a predetermined working area of capacitance rising while the voltage across the switch is increasing. The present disclosure also relates to a power semiconductor device.
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Patent Agency Ranking
公开(公告)号：US20180342349A1
公开(公告)日：2018-11-29
申请号：US15987666
申请日：2018-05-23
Applicant: General Electric Company
Inventor： Saijun Mao , Bo Qu , Jingkui Shi , He Xu , Jie Shen , Tingting Song , Zhihui Yuan , Xin Jiang , Xi Lu , Stefan Schroeder , Marius Michael Mechlinski
IPC: H01F38/14 , H05K1/18 , H01F27/28 , H01F27/24 , H03K17/687
Abstract: An integrated system for signal and power transmission with galvanic isolation is disclosed. The integrated system comprises an insulative layer having a primary side and a secondary side; a planar signal transformer and a planar power transformer for signal and power transmission between the primary and the secondary sides of the insulative layer respectively. The planar signal transformer comprises two signal coupling elements which are disposed on the primary and the secondary sides of the insulative layer respectively. The planar power transformer includes two power coupling elements which are disposed on the primary and the secondary sides of the insulative layer respectively. Each of the two signal coupling elements and the two power coupling elements is embedded in at least one layer of a multi-layer printed circuit board. The integrated system of the present disclosure has a compact structure and is suitable for automatic assembly and manufacturing.
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公开(公告)号：US10003279B2
公开(公告)日：2018-06-19
申请号：US14687979
申请日：2015-04-16
Applicant: General Electric Company
Inventor： Bo Qu , Yingqi Zhang , Jie Shen , Kunlun Chen , Ying Zhang
CPC classification number: H02M7/487 , H02M2001/327
Abstract: A method used to control the operation of a converting device such that it can provide multi-level output voltage for loads. This method comprises at least the steps of: determine whether the load which the converter is providing electricity for is operating under the first condition or the second condition; generate the first pulse signal after determining that this load is operating under the first condition, select at least one of at least three different current paths, such that when the converter is selecting any of the current paths, it can provide output voltage at the same level; as well as generate the second pulse signal after determining that this load is operating under the second condition, such that the converter can perform the regular energy conversion operations.
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公开(公告)号：US09634576B2
公开(公告)日：2017-04-25
申请号：US14317361
申请日：2014-06-27
Applicant: General Electric Company
Inventor： Jie Shen , Stefan Schroeder , Kunlun Chen , Shuitao Yang , Bo Qu , Qin Lei
CPC classification number: H02M7/487 , H02M1/12 , H02M7/483 , H02M2001/123 , Y10T307/707
Abstract: A power conversion system includes at least one multi-level power converter and a controller coupled to the at least one multi-level power converter. The controller includes a first CMV injection module and a second CMV injection module. The first CMV injection module generates a first CMV signal for modifying at least one voltage command to achieve a first function in association with operation of the power conversion system. The second CMV injection module generates a second CMV signal based at least in part on a local limit either for modifying the at least one voltage command or for further modifying the at least one modified voltage command to achieve a second function in association with operation of the power conversion system.
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公开(公告)号：US20150008750A1
公开(公告)日：2015-01-08
申请号：US14317361
申请日：2014-06-27
Applicant: General Electric Company
Inventor： Jie Shen , Stefan Schroeder , Kunlun Chen , Shuitao Yang , Bo Qu , Qin Lei
IPC: H02J1/10
CPC classification number: H02M7/487 , H02M1/12 , H02M7/483 , H02M2001/123 , Y10T307/707
Abstract: A power conversion system includes at least one multi-level power converter and a controller coupled to the at least one multi-level power converter. The controller includes a first CMV injection module and a second CMV injection module. The first CMV injection module generates a first CMV signal for modifying at least one voltage command to achieve a first function in association with operation of the power conversion system. The second CMV injection module generates a second CMV signal based at least in part on a local limit either for modifying the at least one voltage command or for further modifying the at least one modified voltage command to achieve a second function in association with operation of the power conversion system.
Abstract translation: 电力转换系统包括至少一个多电平功率转换器和耦合到所述至少一个多电平功率转换器的控制器。 控制器包括第一CMV注入模块和第二CMV注入模块。 第一CMV注入模块产生用于修改至少一个电压命令的第一CMV信号，以实现与功率转换系统的操作相关联的第一功能。 第二CMV注入模块至少部分地基于本地限制生成第二CMV信号，用于修改至少一个电压命令，或者用于进一步修改至少一个修改的电压命令，以实现与第 电源转换系统
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公开(公告)号：US11268494B2
公开(公告)日：2022-03-08
申请号：US16334622
申请日：2016-09-19
Applicant: General Electric Company
Inventor： Zhuohui Tan , Bo Qu , Xiongzhe Huang , Xu Fu , Shuang Gu , Fernando Javier D'Amato
Abstract: A wind turbine is provided. The wind turbine includes a mechanical system, an electrical system and a controller. The controller is for determining an electrical capability limit of the electrical system according at least in part to one or more operating conditions of the wind turbine and one or more environment conditions of a site of the wind turbine, comparing the electrical capability limit of the electrical system and a mechanical capability limit of the mechanical system, and controlling the electrical system to operate at the smaller one of the electrical capability limit and the mechanical capability limit. A method for controlling a wind turbine comprising a mechanical system and an electrical system is also provided.
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