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公开(公告)号：US09564750B2
公开(公告)日：2017-02-07
申请号：US14443387
申请日：2013-09-05
发明人： Martin Hiller , Olaf Michelsson
CPC分类号： H02H7/067 , G01R31/025 , G01R31/34 , H02P29/0241
摘要： A device for increasing fault clearing time is provided having a component part designed to identify a short circuit event and load resistors connectable in the event of a fault such that the turbine power transmitted to the shaft is electrically absorbed by the generator and converted into heat until the grid comes back online.
摘要翻译： 提供了一种用于增加故障清除时间的装置，其具有被设计为识别短路事件的部件部分和在故障情况下可连接的负载电阻器，使得传输到轴的涡轮机功率被发电机电吸收并转换成热量直到 网格重新上线。
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公开(公告)号：US2208393A
公开(公告)日：1940-07-16
申请号：US16529037
申请日：1937-09-23
发明人： WALTER SCHAELCHLIN
IPC分类号： H02P9/16
CPC分类号： H02P9/16
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公开(公告)号：US07295900B2
公开(公告)日：2007-11-13
申请号：US11411948
申请日：2006-04-27
申请人： Satoka Yasue
发明人： Satoka Yasue
CPC分类号： H03K5/19
摘要： The load drive apparatus has a driver unit and a control unit. The driver unit includes a control section modulating, in accordance with a PWM signal supplied from the control unit, a drive signal to be applied to a load apparatus between a high level and a low level, and a short circuit detecting section detecting, on the basis of a signal level of the PWM signal and a signal level of the modulated drive signal, short circuit on a path through which the modulated drive signal is applied to the load apparatus. The control unit includes a function of fixing a duty ratio of the PWM signal upon occurrence of short circuit to determine to which of a high-level side and a low-level side the path is short-circuited.
摘要翻译： 负载驱动装置具有驱动单元和控制单元。 驱动器单元包括控制部分，根据从控制单元提供的PWM信号调制要施加到高电平和低电平之间的负载装置的驱动信号，以及短路检测部分， PWM信号的信号电平的基准和调制驱动信号的信号电平，在经过调制的驱动信号施加到负载装置的路径上的短路。 控制单元具有在发生短路时固定PWM信号的占空比的功能，以确定路径短路的高电平侧和低电平侧中的哪一个。
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公开(公告)号：US1401337A
公开(公告)日：1921-12-27
申请号：US7889416
申请日：1916-02-17
申请人： DAYTON ENG LAB CO
IPC分类号： H02P9/16
CPC分类号： H02P9/16
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公开(公告)号：US2253340A
公开(公告)日：1941-08-19
申请号：US21830938
申请日：1938-07-09
发明人： CLARENCE LYNN
IPC分类号： H02P9/16
CPC分类号： H02P9/16 , Y10T307/352
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公开(公告)号：US1724846A
公开(公告)日：1929-08-13
申请号：US93825
申请日：1925-01-07
发明人： MICHAEL LOCK
IPC分类号： H02P9/16
CPC分类号： H02P9/16
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公开(公告)号：US10352304B2
公开(公告)日：2019-07-16
申请号：US15105967
申请日：2014-12-17
发明人： Francisco Javier Chivite Zabalza , Carlos Girones Remirez , Ainhoa Carcar Mayor , Eneko Olea Oregi , Jesus Lopez Taberna
IPC分类号： F03D9/00 , F03D9/25 , H02H7/06 , H02P9/10 , H02P9/00 , H02P9/16 , H02J3/18 , H02J3/38 , G05F5/00
摘要： A wind turbine that includes a housing, an asynchronous generator disposed in the housing and configured to be electrically connected to a power grid connection; a power converter circuit disposed in the housing and configured to be electrically connected to the asynchronous generator; and a variable impedance device disposed in the housing, connected to the generator and configured to limit current by varying impedance in response to a transient current. The wind turbine delivers reactive power to the power grid when the variable impedance device varies impedance in response to the transient current. The variable impedance device can be arranged in series between the asynchronous generator and the power grid connection, or can be in a shunt arrangement between the asynchronous generator and a neural point.
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公开(公告)号：US1924190A
公开(公告)日：1933-08-29
申请号：US40534529
申请日：1929-11-07
发明人： KUEHMSTED RENFREW H
IPC分类号： H02P9/16
CPC分类号： H02P9/16 , Y10T307/484 , Y10T307/793
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公开(公告)号：US1696417A
公开(公告)日：1928-12-25
申请号：US21751927
申请日：1927-09-03
发明人： ROBERTS LELAND C
IPC分类号： H02P9/16
CPC分类号： H02P9/16
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公开(公告)号：US1339902A
公开(公告)日：1920-05-11
申请号：US1914840726
申请日：1914-05-25
发明人： PAUL MACGAHAN
IPC分类号： H02P9/16
CPC分类号： H02P9/16
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