公开(公告)号：US12104538B2

公开(公告)日：2024-10-01

申请号：US17294025

申请日：2018-11-19

申请人： KAWASAKI JUKOGYO KABUSHIKI KAISHA

发明人： Kippei Matsuda ,  Kenji Usuki ,  Kenichiro Tanaka

IPC分类号： F02C7/32 ,  B64D31/14 ,  F01D15/10 ,  F02C7/36 ,  H02K7/18 ,  H02P9/06 ,  H02P9/42 ,  B64D41/00 ,  H02P101/30

CPC分类号： F02C7/32 ,  B64D31/14 ,  F01D15/10 ,  F02C7/36 ,  H02K7/18 ,  H02P9/06 ,  H02P9/42 ,  B64D2041/002 ,  F05D2220/323 ,  F05D2220/76 ,  F05D2270/02 ,  F05D2270/66 ,  H02P2101/30

摘要： An electric power generation controller for use in an aircraft to control an electric power generating apparatus including a manual transmission which changes speed of rotational power of an aircraft engine, transmits the rotational power to an electric power generator, and includes a plurality of gear stages. The electric power generation controller includes: a rotational frequency receiving section configured to receive an input rotational frequency or an output rotational frequency of the manual transmission as a monitoring rotational frequency; and a manual transmission control section configured to, when the monitoring rotational frequency exceeds a first threshold, output a shift-down signal to perform shift-down from an upper stage to a lower stage, and when the monitoring rotational frequency falls below a second threshold, output a shift-up signal to perform shift-up from the lower stage to the upper stage, the first threshold being set to a value larger than the second threshold.

公开(公告)号：US11770083B2

公开(公告)日：2023-09-26

申请号：US17285962

申请日：2019-10-22

申请人： SAFRAN ELECTRICAL & POWER

发明人： Andrew Bloor

IPC分类号： H02P9/30 ,  H02M7/48 ,  H01F38/18 ,  H02P27/08 ,  H02M3/00 ,  H02M3/335 ,  H02P9/08 ,  H02P9/42 ,  H02P101/30

CPC分类号： H02P9/302 ,  H01F38/18 ,  H02M3/01 ,  H02M3/33573 ,  H02M7/4818 ,  H02P9/08 ,  H02P9/42 ,  H02P27/085 ,  H02P2101/30

摘要： Controlling a DC-AC inverter of an electric machine, where the electric machine comprises a resonant main exciter having rotary transformer. A voltage level of DC power received at a DC-AC inverter is monitored and the frequency of AC power generated by the DC-AC inverter and supplied to the rotary transformer is controlled based at least in part on the voltage level of the DC power.

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.

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.

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.

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.

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。

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。

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。

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。