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公开(公告)号:EP0178615A2
公开(公告)日:1986-04-23
申请号:EP85112998.1
申请日:1985-10-14
CPC分类号: H02P25/0925 , H02P25/092
摘要: In a power supply system, an inductance L is connected between a rail at a voltage V, and a rail at earth through a switch S. When the switch is opened, a current i 1 flowing from the inductance L is directed to a third rail through a diode D, voltage on the third rail rising to V 1 . The system may function as a dc to dc converter with an output voltage between the V 1 rail and the V 2 rail equal to V 2 -V 1 . The system may alternatively be used in, for example, a reluctance motor drive, in which case a further inductance with associated switch and diode is included in the circuit in inverse configuration to prevent excessive voltage rise on the third rail.
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公开(公告)号:EP3610571B1
公开(公告)日:2024-06-26
申请号:EP18719247.1
申请日:2018-04-10
IPC分类号: H02P25/092
CPC分类号: H02P25/092
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公开(公告)号:EP1959560B1
公开(公告)日:2018-04-25
申请号:EP08250531.4
申请日:2008-02-14
申请人: Nidec SR Drives Ltd.
发明人: Randall, Steven Paul
IPC分类号: H02P25/08
CPC分类号: H02P25/098 , H02P25/092
摘要: A switched reluctance machine has salient poles on the stator and rotor. The windings of the machine are supplied from a converter which provides energisation at a chosen rate. The windings of the machine may be energised at the rate at which the rotor poles pass the stator poles, or it may be operated at a fraction of that rate by energising the windings to cooperate with every second, third or fourth rotor pole. This can extend the output of the machine.
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公开(公告)号:EP3245731A1
公开(公告)日:2017-11-22
申请号:EP16700751.7
申请日:2016-01-15
发明人: FAID, Saphir Elias , BOON, Fabrice
CPC分类号: H02P25/188 , H02K3/28 , H02K16/04 , H02K19/103 , H02K21/16 , H02P6/182 , H02P9/40 , H02P25/08 , H02P25/086 , H02P25/092 , H02P25/18
摘要: The invention involves a switched reluctance motor, comprising a stator and a rotor rotatable relative to the stator. The stator comprises several circumferentially arranged coils and stator poles, the stator poles forming the cores of the coils. The rotor comprises several counter poles for interacting with the stator poles for applying a reluctance torque on the rotor. The motor comprises phase inputs for receiving an actuation signal for actuating one or more phase stages. Each stator coil is associated with a phase stage, such that each phase stage comprises at least two coils. Each phase stage comprises a circuit stage including a switching arrangement comprising switches for selectively switching the coils of said phase stage in either one of a parallel, a serial, or a parallel-serial electrical configuration.
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公开(公告)号:EP2541751A3
公开(公告)日:2017-10-25
申请号:EP12172459.5
申请日:2012-06-18
发明人: Hobelsberger, Max
CPC分类号: H02K3/04 , H02K11/30 , H02K11/33 , H02K19/26 , H02M7/48 , H02P3/18 , H02P9/14 , H02P25/092 , H02P27/08
摘要: In an excitation device for stators of generators for high-induction measurement, the greatest possible compensation of the reactive power requirement is achieved. Depending on the size and energy requirement of the generator, a number of individual excitation modules with a corresponding number of individual excitation windings are provided, wherein a minimum necessary total excitation current can be supplied by superimposing the individual currents of the excitation windings.
摘要翻译: 在用于高感应测量的发电机定子的激励装置中,实现无功功率需求的最大可能补偿。 根据发电机的尺寸和能量需求,提供多个具有相应数量的单独励磁绕组的单独的励磁模块,其中通过叠加励磁绕组的单独电流可以提供最小必需的总励磁电流。
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公开(公告)号:EP2667496A3
公开(公告)日:2017-04-26
申请号:EP13167215.6
申请日:2013-05-10
CPC分类号: H02K19/103 , H02K7/14 , H02P25/092
摘要: Bei einem Flurförderzeug mit einer Arbeitshydraulik, die durch eine Hydraulikpumpe (33) mit Druckmittel versorgt wird, wobei die Hydraulikpumpe (33) von einem elektrischen Pumpenmotor (32) angetrieben wird, weist der elektrische Pumpenmotor (32) einen Stator (5) mit einer Ankerwicklung (8), die eine Teilung proportional der Anzahl von Paaren von Statorpolen (6) des Stators (5) hat, und Feldmagnetmittel zur Bildung eines magnetischen Flusses unter einer in Rotationsrichtung jeweils um einen Winkel gegenüber einem Magnetfeld der Ankerwicklung (8) abweichenden Richtung, insbesondere um 90° bei einem Stator (5) mit vier Statorpolen (6),
sowie einen Rotor (1) aus weichmagnetischem Material hoher Permeabilität mit Rotorpolen (4) mit in Orientierung der Rotorpole (4) geringer magnetischer Reluktanz auf.摘要翻译: 在一工业卡车,其通过液压泵(33)配有压力介质,其特征在于,所述液压泵(33)由电动泵马达(32)被驱动供电的工作液压系统,电动泵马达(32)(5),其具有电枢的定子绕组 (8),其具有的间距正比于对定子极的数量(6)(5),并且场磁铁装置,用于通过一角度相对于形成在旋转方向下的磁通与电枢的磁场绕组(8)偏离方向上的定子的, 特别是通过在定子(5)具有四个定子磁极(6)和转子(1),具有取向在高磁导率与低磁阻的转子极(4)的软磁性材料的转子极(4)90°。
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公开(公告)号:EP2928071A4
公开(公告)日:2016-07-13
申请号:EP13859343
申请日:2013-11-15
申请人: KOBE STEEL LTD
发明人: HAMAGUCHI MASASHI , NOGI TOSHIHIRO , INOUE KENICHI
IPC分类号: H02P25/092 , H02M3/155
CPC分类号: H02P25/092
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公开(公告)号:EP2899877A3
公开(公告)日:2016-07-13
申请号:EP15152216.6
申请日:2015-01-22
申请人: Nidec SR Drives Ltd.
发明人: Jordison, Ian
CPC分类号: H02P6/12 , H02H7/093 , H02P6/14 , H02P6/22 , H02P25/092 , H02P29/0241
摘要: An electrical drive system includes an electrical machine whose windings are supplied through solid state switches under the control of a programmable controller. At least two switches act in parallel to provide the current necessary to energise the machine. An apparatus and method are disclosed which enable the controller to monitor the current sharing of the switches and adjust the output of the drive system in the event of any maloperation.
摘要翻译: 电驱动系统包括电机,其绕组在可编程控制器的控制下通过固态开关供电。 至少两个开关并联起作用以提供为机器通电所需的电流。 公开了一种装置和方法,其使得控制器能够监测开关的当前共享并且在任何错误操作的情况下调整驱动系统的输出。
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89.
公开(公告)号:EP2875581A1
公开(公告)日:2015-05-27
申请号:EP13822577.6
申请日:2013-07-10
申请人: Caterpillar Inc.
发明人: GERDES, Jesse , WAI, Jackson , AHMED, Khalil
IPC分类号: H02P25/06
CPC分类号: H02P27/10 , H02P25/092
摘要: A control system for compensating a hysteresis band of a switched reluctance (SR) machine having a rotor and a stator is provided. The control system may include a converter circuit and a controller. The converter circuit may be operatively coupled to the stator and include a plurality of switches in selective communication with each phase of the stator. The controller may be in communication with each of the stator and the converter circuit, and configured to monitor at least one phase current of the SR machine relative to a current threshold of the hysteresis band, determine an adjustment value based on a difference between the phase current and the current threshold if the phase current exceeds the current threshold, and compensate the current threshold by the adjustment value.
摘要翻译: 提供了一种用于补偿具有转子和定子的开关磁阻(SR)电机的磁滞带的控制系统。 控制系统可以包括转换器电路和控制器。 转换器电路可以可操作地耦合到定子并且包括与定子的每个相位选择性通信的多个开关。 控制器可以与定子和变换器电路中的每一个通信,并且被配置为相对于滞后带的电流阈值监测SR机器的至少一个相电流,基于相位之间的差确定调整值 电流和电流阈值,如果相电流超过电流阈值,则用调整值补偿电流阈值。
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公开(公告)号:EP1903667B9
公开(公告)日:2014-06-11
申请号:EP07253759.0
申请日:2007-09-21
申请人: Nidec SR Drives Ltd.
CPC分类号: H02P5/68 , H02M5/44 , H02M2001/008 , H02P25/092 , H02P29/026 , H02P29/50
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