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1. 发明公开

EP0736952A1 Rotor for reluctance machines 失效
标题翻译： Ankerfüreine Reluktanzmaschine
公开(公告)号：EP0736952A1
公开(公告)日：1996-10-09
申请号：EP96302373.4
申请日：1996-04-03
申请人： SWITCHED RELUCTANCE DRIVES LTD
发明人： Randall, Steven Paul
IPC分类号： H02K1/24 , H02K19/10
CPC分类号： H02K19/10 , H02K1/24
摘要： A rotor assembly for a reluctance machine is disclosed in which the rotor assembly comprises a stack of rotor laminations having a plurality of rotor poles defining interpole regions. The rotor assembly also comprises a cage including an end plate and support bars, which may be electrically conductive, that are axially aligned within the interpolar regions that lie between adjacent rotor poles. When the support bars are electrically conductive, the support bars can become transient "flux blockers" as the rotor assembly rotates past a stator pole, blocking the flow of flux through the interpole regions and improving the performance of the motor.
摘要翻译：公开了一种用于磁阻电机的转子组件，其中转子组件包括具有限定极间区域的多个转子极的转子叠片堆叠。转子组件还包括保持架，其包括端板和支撑杆，其可以是导电的，其在位于相邻转子极之间的极间区域内轴向对准。当支撑杆是导电的时，随着转子组件旋转经过定子极，支撑杆可以变成瞬时的“通量阻塞器”，阻止通过极间区域的焊剂流动并改善电动机的性能。

2. 发明公开

EP0735664A2 Angle control system for a switched reluctance drive utilizing a high frequency clock 失效
标题翻译： Mit her her her b b b b b b b b b b b b b b b b b b b b b b b b
公开(公告)号：EP0735664A2
公开(公告)日：1996-10-02
申请号：EP96302189.4
申请日：1996-03-28
申请人： SWITCHED RELUCTANCE DRIVES LTD
发明人： Sugden, David Mark
IPC分类号： H02P7/05 , H02P6/16
CPC分类号： H02P6/16 , H02P25/0925
摘要： A circuit and method for controlling a switched reluctance drive having at least one phase winding and a rotor position encoder that provides a set of signals corresponding to the absolute position of the rotor relative to the stator. The circuit monitors the set of signals and generates a high frequency clock signal having a frequency substantially proportional to the frequency at which the set of signals changes state. The high frequency clock signal comprises a number of digital pulses for each rotor revolution that is an integral multiple of the number of digital pulses from the rotor position transducer for each rotor revolution and corresponds to the incremental position of the rotor. The high frequency clock signal is applied to a counter that is reset upon each change in state of the set of signals. The output of the counter is compared to predetermined values and the at least one phase winding is energised and de-energised in response to the results of the comparison.
摘要翻译：用于控制具有至少一个相绕组的开关磁阻驱动器和转子位置编码器的电路和方法，其提供对应于转子相对于定子的绝对位置的一组信号。该电路监视该组信号并产生具有与该组信号改变状态的频率基本成比例的频率的高频时钟信号。高频时钟信号包括用于每个转子转数的多个数字脉冲，其是来自每个转子旋转的转子位置传感器的数字脉冲数的整数倍，并且对应于转子的增量位置。高频时钟信号被施加到在该组信号的每个状态改变时复位的计数器。将计数器的输出与预定值进行比较，并且至少一个相绕组响应于比较结果被通电和断电。

3. 发明公开

EP0735661A2 Apparatus and method for starting a single-phase variable reluctance motor 失效
标题翻译： Vorrichtung und Verfahren zum Anlauf eines einphasigen Reluktanzmotors
公开(公告)号：EP0735661A2
公开(公告)日：1996-10-02
申请号：EP96301987.2
申请日：1996-03-22
申请人： SWITCHED RELUCTANCE DRIVES LTD
发明人： Fulton, Norman Neilson , Buchan, Ernest James
IPC分类号： H02P1/16
CPC分类号： H02P1/163
摘要： A single-phase switched reluctance motor is disclosed. The motor includes a stator having a plurality of projecting poles and a coaxial rotor. The stator and rotor poles may be formed from laminations of ferromagnetic material. Energizing coils are wound around one or more of the stator poles. When the coils are energized, the rotor develops torque. In one embodiment, the motor includes a motor starting mechanism which sets the rotor into motion before the stator coils are energized so that the rotor is not static when the coils are energized. In another embodiment, the motor includes a rotor positioning mechanism which positions the rotor in a preferred starting position before the stator coils are energized.
摘要翻译：公开了单相开关磁阻电动机。电动机包括具有多个突出极和同轴转子的定子。定子和转子极可以由铁磁材料的叠片形成。励磁线圈缠绕在一个或多个定子极上。当线圈通电时，转子产生转矩。在一个实施例中，马达包括马达启动机构，其在定子线圈通电之前将转子设置成运动，使得当线圈通电时转子不是静止的。在另一个实施例中，电动机包括转子定位机构，其在定子线圈通电之前将转子定位在优选的起始位置。

4. 发明公开

EP0702450A3 Switched reluctance generators 失效
标题翻译：开关磁阻发电机
公开(公告)号：EP0702450A3
公开(公告)日：1996-07-17
申请号：EP95305307.1
申请日：1995-07-28
申请人： SWITCHED RELUCTANCE DRIVES LTD
发明人： Davis, Rex
IPC分类号： H02P7/05
CPC分类号： H02P9/40
摘要： A switched reluctance generator is controlled such that flux growth in a phase winding (10,12,14) occurs at a faster rate during the initial part of the phase inductance cycle and at a second, slower rate during the subsequent part of the phase inductance cycle. The difference between flux growth and decay may be achieved either by applying different voltages during the two parts of the phase inductance cycle or by applying the same voltage over only part of the phase winding during the initial part of the phase inductance cycle and then applying that voltage across the phase winding thereafter. It is advantageous to make the increase in flux more rapid than its decay because minimising the length of time that the flux is present while the phase inductance is rising will minimise the production of unwanted (motoring) torque.
摘要翻译：控制开关磁阻发电机，使得相绕组（10,12,14）中的通量增长在相电感周期的初始部分期间以更快的速率发生，并且在相电感的后续部分期间以第二较慢速率发生周期。通量增长和衰减之间的差异可以通过在相电感周期的两个部分期间施加不同的电压或通过在相电感周期的初始部分期间在相绕组的一部分上施加相同的电压来实现，之后的相绕组两端的电压。使通量的增加比其衰减更快是有利的，因为最小化存在通量的时间长度而相电感上升将最小化不想要的（电动）转矩的产生。

5. 发明公开

EP0702448A1 Stator for electric machine and lamination thereof 失效
标题翻译： Statorfürelektrische Maschine und Blechpakethierfür
公开(公告)号：EP0702448A1
公开(公告)日：1996-03-20
申请号：EP95306140.5
申请日：1995-09-01
申请人： SWITCHED RELUCTANCE DRIVES LTD
发明人： Fulton, Norman Neilson
IPC分类号： H02K19/10 , H02K1/14
CPC分类号： H02K19/103 , H02K1/146
摘要： A stator (10) for an electric machine, in particular a switched reluctance machine, has a non-circular, for example, square, outer profile and a set of equi-angularly spaced stator poles (14A-14D) which are angularly arranged to be intermediate radially thickest and thinnest parts of the ring to avoid the poles coinciding with vibrational antinodes of the outer ring. In a particular embodiment the outer profile is square and the stator poles are angularly offset from a line of symmetry drawn through the centre of the square at right angles to one pair of opposite sides.
摘要翻译：一种用于电机，特别是开关磁阻电机的定子（10）具有非圆形例如正方形的外轮廓和一组等角度间隔开的定子极（14A-14D），它们角度地布置成是环的径向最厚和最薄的部分，以避免与外圈的振动波腹重合。在特定实施例中，外轮廓是正方形的，并且定子极与从正方形的中心绘制成直角对称的一对对角线偏移。

6. 发明公开

EP0692862A2 Power supply to a stator of a polyphase reluctance machine 失效
标题翻译：能源供应多相的定子开关磁阻电机
公开(公告)号：EP0692862A2
公开(公告)日：1996-01-17
申请号：EP95304742.0
申请日：1995-07-06
申请人： SWITCHED RELUCTANCE DRIVES LTD
发明人： Davis, Rex Mountford
IPC分类号： H02K29/00 , H02P6/14
CPC分类号： H02P9/40 , H02K3/28 , H02K19/103 , H02P3/065 , H02P9/02
摘要： A polyphase switched reluctance machine has only n power cable connections for n phases. Each phase winding includes a series connected diode and the phase windings and their diodes are arranged in a conducting ring. Alternating currents are fed to the nodes of the conducting ring from an inverter. The nodal connections between the phases allows the alternating current to energise the windings where previously only a greater number of cables and a unidirectional current would have been required. Due to the presence of alternating current, a transformer may be interposed between the inverter and the nodes of the conducting ring to allow a boosted voltage to be delivered over long distances.

7. 发明公开

EP0608979A2 Switching circuit 失效
标题翻译：开关电路
公开(公告)号：EP0608979A2
公开(公告)日：1994-08-03
申请号：EP94300156.0
申请日：1994-01-10
申请人： SWITCHED RELUCTANCE DRIVES LTD
发明人： Davis, Rex Mountford
IPC分类号： H02P7/63 , H02P8/00
CPC分类号： H02M7/487 , H02P9/00 , H02P25/092
摘要： A switching circuit for a switched reluctance motor or generator comprises positive and negative power lines 10/12, a string of smoothing capacitors 14 serially connected between them and two pairs of gate turn-off thyristors 22, 24/30, 32 connected to either end of a phase winding 18 of the motor or generator. Circulating diodes 26/34 are connected between the ends of the winding and the opposite power line and further circulating diodes 36/38 are connected between each pair of thyristors. A mid-point 16 between the capacitors is connected between the further diodes. At switch-off one of the outer GTO's is first opened so that one of the diodes conducts and current in the winding is routed via the mid-point. Then the other outer GTO is opened so that current now circulates through both of the diodes and substantially no voltage is dropped across the winding. The first inner GTO is then opened causing one of the diodes 26/34 to conduct. Thereafter the second inner GTO can be opened. Turn-on requires a progressive reversal of the turn-off sequence if winding current continues to flow. Otherwise, all but one outer GTO are turned on together followed by the omitted GTO after a delay. The GTO to be omitted initially at turn-on is chosen to provide the desired correction to the voltage at the midpoint.
摘要翻译：用于开关磁阻电动机或发电机的开关电路包括正负电源线10/12，串联连接在它们之间的一串平滑电容器14和两对连接到任一端的栅极关断晶闸管22,24/30,32 马达或发电机的相绕组18。循环二极管26/34连接在绕组的端部和相对的电源线之间，并且另外的循环二极管36/38连接在每对晶闸管之间。电容器之间的中点16连接在另外的二极管之间。在关断时，首先打开一个外部GTO，使其中一个二极管导通，绕组中的电流通过中点进行布线。然后打开另一个外部GTO，使得电流现在循环通过两个二极管，并且基本上没有电压落在绕组两端。然后打开第一内部GTO，使二极管26/34中的一个导通。此后，可以打开第二内部GTO。如果绕组电流继续流动，导通需要逐步反转关断序列。否则，除了一个外部GTO之外，所有的GTO都会一起开启，延迟之后会一直开启。在导通时最初省略的GTO被选择为对中点处的电压提供期望的校正。

8. 发明公开

EP0343845A3 Improvements in electric machines 失效
标题翻译：电机改进
公开(公告)号：EP0343845A3
公开(公告)日：1990-06-13
申请号：EP89305014.6
申请日：1989-05-18
申请人： SWITCHED RELUCTANCE DRIVES LTD
发明人： Stephenson, John Michael
IPC分类号： H02K19/06 , H02K19/24
CPC分类号： H02K19/06 , H02K19/24
摘要： An electric motor comprises a laminated stator core (13) supporting windings (16) to define similar adjacent poles. A rotor (12) is mounted to rotate within the stator. The similar poles in a group define flux paths with adjacent pole groups. Thus the flux paths (20) required are restricted to those between adjacent dissimilar pole groups. In this way the material of the core between the flux paths can be reduced as it is not required to carry flux itself. This redundant portion of the core can be shaped to accommodate neighbouring components or to reduce the material of the core laminations.

9. 发明公开

EP0307190A3 Bi-directional power conversion circuit 失效
标题翻译：双向功率转换电路
公开(公告)号：EP0307190A3
公开(公告)日：1989-11-15
申请号：EP88308281.0
申请日：1988-09-08
申请人： SWITCHED RELUCTANCE DRIVES LTD
发明人： Davis, R.M.
IPC分类号： H02M7/757
CPC分类号： H02M7/797 , H02M7/757
摘要： A power conversion circuit includes a rectifier/inverter (2) connected to an AC source/sink, a chopper which controls the direct current in the rectifier/inverter and path selection means which connect the chopper to the rectifier/inverter and to the fixed polarity DC sink/source whereby power may flow in either direction between the AC and DC terminals according to which path is selected under the control of the chopper acting either as a step-up flyback converter or step-down forward converter.
摘要翻译：电力转换电路包括连接到AC源/汇的整流器/逆变器（2），控制整流/逆变器中的直流电的斩波器和将斩波器连接到整流/逆变器的固定极性的路径选择装置 DC电源/源，因此根据在斩波器的控制下选择路径的功率可以在AC和DC端子之间的任一方向上流动，其作用为升压反激转换器或降压正激转换器。

10. 发明公开

EP0307190A2 Bi-directional power conversion circuit 失效
标题翻译： Zweirichtungsleistungsumwandlungsschaltung。
公开(公告)号：EP0307190A2
公开(公告)日：1989-03-15
申请号：EP88308281.0
申请日：1988-09-08
申请人： SWITCHED RELUCTANCE DRIVES LTD
发明人： Davis, R.M.
IPC分类号： H02M7/757
CPC分类号： H02M7/797 , H02M7/757
摘要： A power conversion circuit includes a rectifier/inverter (2) connected to an AC source/sink, a chopper which controls the direct current in the rectifier/inverter and path selection means which connect the chopper to the rectifier/inverter and to the fixed polarity DC sink/source whereby power may flow in either direction between the AC and DC terminals according to which path is selected under the control of the chopper acting either as a step-up flyback converter or step-down forward converter.
摘要翻译：电力转换电路包括连接到AC源/汇的整流器/逆变器（2），控制整流/逆变器中的直流电的斩波器和将斩波器连接到整流/逆变器的固定极性的路径选择装置 DC电源/源，因此根据在斩波器的控制下选择路径的功率可以在AC和DC端子之间的任一方向上流动，其作用为升压反激转换器或降压正激转换器。

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