专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US11316458B2 Turboelectric generator system 有权
公开(公告)号：US11316458B2
公开(公告)日：2022-04-26
申请号：US17061140
申请日：2020-10-01
申请人： ROLLS-ROYCE plc
发明人： Mark Sweet , David F Brookes
IPC分类号： H02P9/42 , F02C6/00 , F02C7/06 , F02C3/10 , H02P101/25 , H02P103/20
摘要： A turboelectric generator system includes a gas turbine engine which includes, in fluid flow series, a gas-generator compressor, a combustor, a gas-generator turbine, and a variable-speed free power turbine. The system further comprises a variable-frequency electric machine rotatably connected with the free power turbine and a power converter configured to convert a variable frequency electrical output from the electric machine to a fixed frequency output.

2. 发明授权

US11012016B2 Energy packet control of generator prime mover 有权
公开(公告)号：US11012016B2
公开(公告)日：2021-05-18
申请号：US17066982
申请日：2020-10-09
申请人： Schweitzer Engineering Laboratories, Inc.
发明人： Edmund O. Schweitzer, III , Gregary C. Zweigle , Ellery A. Blood , Scott M. Manson
IPC分类号： H02P9/42 , H02P9/10 , H03H17/02 , F02D9/00 , H02P9/04 , F02D31/00 , F02D41/00 , F02M21/00 , F02D39/00 , F02P1/00
摘要： A controller may use energy packets to control a prime mover of a machine. The controller may include an energy packet measurement control to calculate energy packets and convert the energy packets into a fuel valve reference. Further, a frequency control may receive system feedback associated with the monitored machine and generate a frequency correction based on the system feedback. The controller may add the energy packet value and the frequency correction to determine a prime mover power reference and provide the prime mover power reference to a fuel valve control of the machine.

3. 发明授权

US10742149B1 System and method for reactive power control of a wind turbine by varying switching frequency of rotor side converter 有权
公开(公告)号：US10742149B1
公开(公告)日：2020-08-11
申请号：US16390547
申请日：2019-04-22
申请人： General Electric Company
发明人： Kasi Viswanadha Raju Gadiraju , Olive Ray , Kapil Jha , Yashomani Yashodhan Kolhatkar
IPC分类号： H02P9/42 , H02P9/00 , H02P9/10 , H02P9/30 , H02P101/15 , H02M5/458 , H02M1/42 , H02J3/18 , F03D9/25 , H02J3/38
摘要： A method and associated system for operating a power generation system to provide real and reactive power to a load includes, with a power converter having switching elements, receiving power from a generator and generating the reactive power within an operating range of generator rotor speed. As the generator rotor speed changes and approaches synchronous speed, a control command is generated to decrease a switching frequency of the switching elements in the power converter from a first switching frequency to a second switching frequency, wherein the reactive power output of the power converter is maintained or increased at the second switching frequency.

4. 发明申请

US20190305705A1 METHOD FOR SUPPLYING AN EXCITATION CURRENT TO AN EXCITATION WINDING OF A ROTOR, METHOD FOR OPERATING A SYSTEM FOR PRODUCING A THREE-PHASE ALTERNATING VOLTAGE, AND CORRESPONDING SYSTEM 审中-公开
公开(公告)号：US20190305705A1
公开(公告)日：2019-10-03
申请号：US16302753
申请日：2017-04-21
申请人： Siemens Aktiengesellschaft
发明人： Martin Bennauer , Manuel Gutermuth , Christian Jäkel , Meinolf Klocke , Mario Koebe , Matthias Kowalski , Marian-Peter Pieczyk , Holger Romanowski , Florian Röhr , Milan Schmahl , Christoph Lehmann , Pascal Piasecki , Andrey Mashkin , Kai Brune
IPC分类号： H02P9/42
摘要： A method for supplying an excitation current to an excitation winding of a rotor of a three-phase generator of a system for producing a three-phase alternating voltage to be fed into a power network. A pulsed excitation current is supplied to the excitation winding if a rotational frequency of the rotor deviates from a network frequency of the power network.

5. 发明授权

US09106168B2 Method for re-powering a star-connected stator 有权
标题翻译：为星形连接的定子重新供电的方法
公开(公告)号：US09106168B2
公开(公告)日：2015-08-11
申请号：US13027287
申请日：2011-02-15
申请人： Alain Lacaze
发明人： Alain Lacaze
IPC分类号： H02K15/02 , H02P9/42 , H02K3/28 , H02K19/34 , H02M5/27 , H02P25/22 , H02P27/16 , H02K11/04
CPC分类号： H02P9/42 , H02K3/28 , H02K11/046 , H02K19/34 , H02M5/27 , H02M5/271 , H02P25/22 , H02P27/16 , Y10T29/49009
摘要： A method for re-powering a star-connected stator having a plurality of parallel stator slots, wherein a plurality of stator winding bars having external winding connections are disposed in stator slots includes bridging the external winding connections so as to connect the stator winding bars in series and to form a polygonal stator capable of producing a polyphase alternating current.
摘要翻译：一种用于对具有多个平行定子槽的星形连接的定子重新供电的方法，其中在定子槽中设置多个具有外部绕组连接的定子绕组，包括桥接外部绕组连接，以将定子绕组连接在并且形成能够产生多相交流电的多边形定子。

6. 发明授权

US09017208B2 Infinitely variable motion control (IVMC) for generators, transmissions and pumps/compressors 有权
标题翻译：用于发电机，变速箱和泵/压缩机的无级变速运动控制（IVMC）
公开(公告)号：US09017208B2
公开(公告)日：2015-04-28
申请号：US14096171
申请日：2013-12-04
申请人： Kyung Soo Han
发明人： Kyung Soo Han
IPC分类号： F16H37/08 , F16H3/72 , F03D11/00 , F03D11/02 , H02P9/04 , H02P9/42 , F16H29/04
CPC分类号： F16H3/72 , F03D15/00 , F03D15/10 , F03D80/00 , F03D80/70 , F16H29/04 , H02P9/04 , H02P9/42 , Y02E10/72 , Y02E10/722
摘要： Infinitely variable motion control (IVMC) provides motion control without any requirement for changing gears or use of a clutch. A bevel or spur gear transgear, defined as a system having an input, an output and a control, a variable pitch cam having an eccentric inner and outer cam assembly, a driver and a one-way clutch or ratchet bearing assembly may be used to form a cam controlled speed converter converting a given input to a variable or constant output speeds and further having direction control. All IVMC's, cam controlled IVMC, input compensated IVMC and pitch controlled IVMC may be utilized to form various embodiments of infinitely variable generators, transmissions and compressors/pumps.
摘要翻译：无级变速运动控制（IVMC）提供运动控制，无需更换齿轮或使用离合器。定义为具有输入，输出和控制的系统的斜面或正齿轮传动齿轮可以使用具有偏心内凸轮组件和外凸轮组件的变桨距凸轮，驱动器和单向离合器或棘轮轴承组件形成凸轮控制速度转换器，将给定输入转换为可变或恒定的输出速度，并进一步具有方向控制。所有IVMC，凸轮控制IVMC，输入补偿IVMC和俯仰控制IVMC可用于形成无级变速发电机，变速器和压缩机/泵的各种实施例。

7. 发明授权

US08653683B2 Device for controlling a double-fed asynchronous machine 有权
标题翻译：用于控制双馈异步机的设备
公开(公告)号：US08653683B2
公开(公告)日：2014-02-18
申请号：US13111339
申请日：2011-05-19
申请人： Stephan Engelhardt , Joerg Kretschmann
发明人： Stephan Engelhardt , Joerg Kretschmann
IPC分类号： H02P9/42
CPC分类号： H02P9/007 , F03D9/25 , F03D9/257 , F05B2240/96 , H02J3/386 , H02P9/105 , H02P2101/15 , Y02E10/725 , Y02E10/763
摘要： The invention relates to a device and method for controlling a double-fed asynchronous machine (4), preferably for a power plant, in particular for a wind or water power plant. The device includes an indirect converter (6) which is connected on the rotor side to the double-fed asynchronous machine (4). The indirect converter (6) includes a rotor-side converter (20) and a line-side converter (24). At least one control element (8) is provided for controlling the indirect converter (6). At least one software-based and/or hardware-based damping element (40, 46, 48, 120) is provided which has changeable damping characteristics.
摘要翻译：本发明涉及一种用于控制双馈异步机（4）的装置和方法，优选地用于发电厂，特别是用于风力或水力发电厂。该装置包括间接转换器（6），该间接转换器（6）在转子侧连接到双馈异步机（4）。间接转换器（6）包括转子侧转换器（20）和线路侧转换器（24）。提供至少一个控制元件（8）用于控制间接转换器（6）。提供至少一个基于软件的和/或基于硬件的阻尼元件（40,46,48,120），其具有可变阻尼特性。

8. 发明申请

US20130009610A1 CONTROL SYSTEM FOR DOUBLY-FED INDUCTION MACHINE 审中-公开
标题翻译：双相感应电机控制系统
公开(公告)号：US20130009610A1
公开(公告)日：2013-01-10
申请号：US13543331
申请日：2012-07-06
申请人： Jouko Niiranen , Slavomir Seman , Reijo Virtanen
发明人： Jouko Niiranen , Slavomir Seman , Reijo Virtanen
IPC分类号： H02P9/42
CPC分类号： B26D7/015 , B26F1/14 , B26F1/22 , B26F1/36 , B31D1/0043 , H02P9/007 , H02P23/04
摘要： A method and arrangement for controlling a doubly-fed induction machine by a frequency converter including a rotor side converter (INU) connected to a rotor circuit of a doubly-fed induction machine (DFIG) and having a control system with rotor flux as a feedback variable, a grid side converter (ISU) connected to an AC power network, and a direct voltage intermediate circuit (DC) connected between the rotor side converter (INU) and the grid side converter (ISU). The method includes forming a rotor flux reference (ψr,ref), forming a damping signal (ψref,D), summing the damping signal and the rotor flux reference for obtaining a modified rotor flux reference (ψref), and feeding the modified rotor flux reference to a controller of the rotor side converter (INU) for damping sub-synchronous resonances.
摘要翻译：一种用于通过变频器控制双馈感应电机的方法和装置，该变频器包括连接到双馈感应电机（DFIG）的转子电路的转子侧转换器（INU），并具有转子磁通作为反馈的控制系统连接到交流电网的电网侧转换器（ISU）和连接在转子侧转换器（INU）和电网侧转换器（ISU）之间的直流电压中间电路（DC）。该方法包括形成转子磁通量参考（ψr，ref），形成阻尼信号（ψref，D），将阻尼信号和转子磁通量参考相加，以获得修正的转子磁通量参考（ψref），并将修改的转子磁通参考用于阻尼子同步谐振的转子侧转换器（INU）的控制器。

9. 发明申请

US20100039077A1 LOAD ANGLE MEASUREMENT AND POLE SLIP DETECTION 有权
标题翻译：负载角度测量和坡度检测
公开(公告)号：US20100039077A1
公开(公告)日：2010-02-18
申请号：US12527809
申请日：2008-02-07
申请人： Denis Hedley Dalby
发明人： Denis Hedley Dalby
IPC分类号： H02P9/14 , H02K11/00 , H02P9/42 , H02P9/00
CPC分类号： H02P9/302 , H02P9/009 , H02P2101/15
摘要： Apparatus for measuring load angle in a synchronous generator is disclosed. The synchronous generator is of a type comprising a main machine, an exciter for exciting the main machine, and a permanent magnet machine for exciting the exciter. The apparatus comprises means for sensing a waveform produced by the permanent magnet machine, means for sensing a waveform produced by the main machine, and means (20) for comparing the waveform produced by the permanent magnet machine with the waveform produced by the main machine to produce a measure of load angle. The measure of load angle may be used to provide a warning of potential pole slip.
摘要翻译：公开了用于测量同步发电机中的负载角度的装置。同步发电机是包括主机，用于激励主机的励磁机和用于激励励磁机的永磁机的类型。该装置包括用于感测由永磁体机器产生的波形的装置，用于感测由主机产生的波形的装置，以及用于将由永磁体机器产生的波形与主机产生的波形进行比较的装置，产生负载角度的度量。负载角度的测量可用于提供潜在的极滑的警告。

10. 发明申请

US20090243417A1 SINGLE STAGE STARTER/GENERATOR WITH ROTOR QUADRATURE AC EXCITATION 失效
标题翻译：单级起动器/发电机，带有转子四次交流励磁
公开(公告)号：US20090243417A1
公开(公告)日：2009-10-01
申请号：US12060787
申请日：2008-04-01
申请人： MING XU , Christian Anghel , William Scherzinger
发明人： MING XU , Christian Anghel , William Scherzinger
IPC分类号： H02K19/26 , H02P9/42
CPC分类号： H02K7/20 , H02K3/28 , H02K19/38
摘要： When driven by a variable speed prime mover, a generator system provides relatively constant frequency AC power by independently controlling the main rotor flux rotational speed. The generator system includes an exciter stator that induces current in the exciter rotor windings at a desired frequency and phasing. The exciter rotor windings are electrically connected to and located in a common core as the main rotor windings to provide two-phase excitation current to the main rotor windings. The exciter stator winding is also located in a common core as the main generator stator windings. Excitation is supplied to the exciter stator from an exciter controller, which controls the frequency and phasing of the exciter excitation, based on the rotational speed and rotor position of the generator, to maintain a constant output frequency. The exciter frequency control function of the exciter controller may be eliminated when the generator system is driven by a constant speed prime mover or when a narrow band variable frequency output is required.
摘要翻译：当由可变速原动机驱动时，发电机系统通过独立地控制主转子磁通转速提供相对恒定的交流电力。发电机系统包括激励器定子，其以期望的频率和定相在励磁机转子绕组中感应电流。励磁机转子绕组与主转子绕组电连接并位于公共芯中，以向主转子绕组提供两相励磁电流。励磁机定子绕组也位于公共铁心中作为主发电机定子绕组。激励从激励器控制器提供给励磁机定子，励磁机控制器基于发电机的转速和转子位置来控制励磁机励磁的频率和定相，以保持恒定的输出频率。当发电机系统由恒速原动机驱动时或者当需要窄带可变频率输出时，可以消除励磁机控制器的励磁机频率控制功能。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式