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

US08970146B2 Controller for electrical machines 有权
标题翻译：电机控制器
公开(公告)号：US08970146B2
公开(公告)日：2015-03-03
申请号：US13129427
申请日：2009-11-17
申请人： Charles Pollock , Helen Pollock
发明人： Charles Pollock , Helen Pollock
IPC分类号： H02P21/00 , H02P6/18 , H02P21/14
CPC分类号： H02P6/18 , H02P21/18 , H02P21/24
摘要： The present invention relates to control of synchronous machines. A sensorless control system for an electrical machine is provided comprising a rotor and a stator having one or more phase windings for generating a rotating stator magnetic field. The current in the phase windings is monitored to determine real and imaginary components of the current vector in a rotating reference frame, from which real and imaginary components of the emf vector rotating in the rotating reference frame can also be determined. The ratio of the real and imaginary emf components is calculated, and an angular position of the rotational emf vector is estimated from this ratio. An angular error signal indicative of the deviation of the estimated angular position from a desired position in line with the real axis of the rotating reference frame is determined, and the machine is controlled such that the error signal tends towards zero.
摘要翻译：本发明涉及同步电机的控制。提供了一种用于电机的无传感器控制系统，其包括具有一个或多个相绕组的转子和定子，用于产生旋转的定子磁场。监测相绕组中的电流，以确定旋转参考系中的电流矢量的实部和虚部，也可以从旋转参考系中确定在旋转参考系中旋转的电动势矢量的实部和虚部。计算实际和虚拟的电动势分量的比率，并且根据该比率来估计旋转电动势矢量的角位置。确定指示估计的角位置与与旋转参考系的实际轴线一致的期望位置的偏差的角度误差信号，并且控制机器使得误差信号趋于零。

2. 发明授权

US08766571B2 Method and apparatus for controlling an electrical machine 有权
标题翻译：用于控制电机的方法和装置
公开(公告)号：US08766571B2
公开(公告)日：2014-07-01
申请号：US14007321
申请日：2012-03-26
申请人： Charles Pollock , Helen Pollock
发明人： Charles Pollock , Helen Pollock
IPC分类号： H02P21/00
CPC分类号： H02P6/205 , H02P1/04 , H02P6/182 , H02P6/21 , H02P21/0021 , H02P21/13 , H02P23/03 , H02P23/12
摘要： An observer (404), operating during a time when open loop control (402) is being used to drive a synchronous motor (401), the output of the observer (404) being a signal, E_I_angle, related to the angle between a rotational EMF vector and the current excitation vector, the observer (404) determining the angle by an iterative calculation incorporating a summation term, the summation term summing the variation of the quadrature component of a rotational EMF vector relative to an estimated EMF position vector, and using the angle output of the observer to update the estimate of the rotational EMF position vector. In a further aspect of the invention the observer output signal, E_I_angle, can be used to determine the transition to closed loop control (405), when the observer output signal reaches a value indicating conditions close to pull out conditions.
摘要翻译：在使用开环控制（402）来驱动同步电动机（401）的时间内操作的观察者（404），观察者（404）的输出是与旋转的角度相关的信号E_I_angle EMF矢量和当前激励矢量，观察者（404）通过包含求和项的迭代计算来确定角度，求和项将旋转EMF矢量的正交分量的变化相对于估计的EMF位置矢量求和，并使用观察者的角度输出来更新旋转EMF位置矢量的估计。在本发明的另一方面，当观察者输出信号达到指示接近拉出条件的条件的值时，可以使用观测器输出信号E_I_angle来确定向闭环控制（405）的转变。

3. 发明授权

US08471510B2 Control of electrical machines 有权
标题翻译：电机控制
公开(公告)号：US08471510B2
公开(公告)日：2013-06-25
申请号：US12744984
申请日：2008-12-01
申请人： Charles Pollock , Helen Pollock
发明人： Charles Pollock , Helen Pollock
IPC分类号： H02P6/16
CPC分类号： H02P6/16 , H02P6/10 , H02P25/089
摘要： An electrical machine for converting electrical energy into mechanical energy and/or mechanical energy into electrical energy, including at least one rotor position sensor device configured to undertake the steps of measuring an electrical signal during a switching cycle in an end region, and comparing the measurement with at least one similar measurement in at least one previous switching cycle to determine if a known rotor position has been reached.
摘要翻译：一种用于将电能转换成机械能和/或机械能转换成电能的电机，包括至少一个转子位置传感器装置，该至少一个转子位置传感器装置被配置为执行在终端区域的开关周期期间测量电信号的步骤，在至少一个先前的切换循环中至少进行一次类似的测量，以确定是否已经达到已知的转子位置。

4. 发明授权

US08242711B2 Lighting systems 有权
标题翻译：照明系统
公开(公告)号：US08242711B2
公开(公告)日：2012-08-14
申请号：US12450568
申请日：2008-03-31
申请人： David Thomas Summerland , Charles Pollock , Helen Pollock
发明人： David Thomas Summerland , Charles Pollock , Helen Pollock
IPC分类号： G05F1/00 , H05B37/02
CPC分类号： H05B33/0845
摘要： A power adaptor (20) for a lighting unit (50) having a solid state light source (50a,50b,50c) is disclosed. The power adaptor (20) comprises an input (22) for connection to a mains power supply, a power transfer module (40a,40b,40c,140a) that is coupled to the input (22) and provides an output suitable for driving the solid state light source (50a,50b,50c), and a controller (30) that receives a voltage signal from the input (22) and is able to deliver a control signal to the power transfer module (40a,40b,40c,140a) for reducing the power drawn from the input (22). The power adaptor (20) draws current from the input (22) as a function of the voltage at the input (22) in order that the power adaptor (20) appears as a variable resistor to the mains supply.
摘要翻译：公开了一种用于具有固态光源（50a，50b，50c）的照明单元（50）的电源适配器（20）。电源适配器（20）包括用于连接到市电电源的输入端（22），耦合到输入端（22）并提供适于驱动电源的输出的输出模块（40a，40b，40c，140a）固体光源（50a，50b，50c）和控制器（30），其从所述输入端（22）接收电压信号，并且能够将控制信号传送到所述电力传递模块（40a，40b，40c，140a ），用于减少从输入（22）吸取的功率。电源适配器（20）根据输入端（22）处的电压来从输入端（22）吸取电流，以使电源适配器（20）作为电源的可变电阻器出现。

5. 发明申请

US20110285332A1 CONTROLLER FOR ELECTRICAL MACHINES 有权
标题翻译：电机控制器
公开(公告)号：US20110285332A1
公开(公告)日：2011-11-24
申请号：US13129427
申请日：2009-11-17
申请人： Charles Pollock , Helen Pollock
发明人： Charles Pollock , Helen Pollock
IPC分类号： H02P21/14
CPC分类号： H02P6/18 , H02P21/18 , H02P21/24
摘要： The present invention relates to control of electrical machines and in particular, though not exclusively, to control of synchronous machines such as hybrid stepping motors, flux switching machines and brushless permanent magnet motors and generators. A sensorless control system for an electrical machine is provided comprising a rotor, a stator having one or more phase windings for generating a rotating stator magnetic field, the system comprising detection means for monitoring the currents in the phase windings providing a real component Is—real along a real axis at a known angle in line with a rotating reference frame and an imaginary component Is—imag orthogonal to the real component Is—real, calculating means for determining a value of the real component Es—real of the rotational emf along an axis at a known angle in line with a rotating reference frame and an imaginary component (Es—imag) orthogonal to the real component (Es—real), estimating means for estimating an angular position of the rotational emf vector using at least one of the estimated orthogonal components of the emf, error means for determining an angular error signal indicative of the deviation of the estimated angular position from a desired position, and synchronising means for controlling the machine such that the error signal tends towards zero.
摘要翻译：电动机的控制技术领域本发明涉及电机的控制，特别是涉及混合式步进电机，磁通切换机和无刷永磁电动机以及发电机等同步电机的控制。提供了一种用于电机的无传感器控制系统，包括转子，定子，其具有用于产生旋转定子磁场的一个或多个相绕组，该系统包括用于监测相绕组中的电流的检测装置，其提供实部分Is- 沿着与旋转参考系和与实分量Is-real正交的虚分量Is-imag的已知角度的实轴，计算装置，用于确定旋转电动势的实分量Es-real的值轴以与旋转参考系和与实部分（Es-real）正交的虚分量（Es-imag）一致的已知角度，估计装置，用于使用以下方法中的至少一个来估计旋转emf矢量的角位置用于确定表示估计的角位置与期望位置的偏差的角度误差信号的误差装置，以及用于控制机器的同步装置，使得误差信号趋于零。

6. 发明申请

US20110181135A1 MICRO-STEPPING RELUCTANCE MOTOR 审中-公开
标题翻译：微步进电机
公开(公告)号：US20110181135A1
公开(公告)日：2011-07-28
申请号：US13057635
申请日：2009-08-06
申请人： Charles Pollock , Helen Pollock
发明人： Charles Pollock , Helen Pollock
IPC分类号： H02K37/04
CPC分类号： H02P8/22 , H02K19/103 , H02K37/04 , H02P25/08 , H02P25/092 , H02P25/098
摘要： The present invention relates to control of electrical motors and in particular, to the design and control of reluctance motors capable of micro-stepping position control. According to the invention there is provided a single stack variable reluctance machine with salient stator teeth and salient rotor teeth, the stator further comprising field magnet sections created by either permanent magnets or field windings or a combination of permanent magnets and field windings, and further comprising armature windings connected to form at least two armature phase windings, the armature phase windings connected to a power source or power electronic inverter for the supply of positive and negative current to at least two armature phase windings such that the rotor rotates in small incremental steps in response to small changes in the current in one or more of the phase windings.
摘要翻译：本发明涉及电动机的控制，特别涉及能够进行微步进位置控制的磁阻电动机的设计和控制。根据本发明，提供了一种具有凸起的定子齿和凸轮转子齿的单堆可变磁阻电机，该定子还包括由永磁体或场绕组或永磁体和励磁绕组的组合产生的励磁磁极部分，并且还包括电枢绕组连接以形成至少两个电枢相绕组，所述电枢相绕组连接到电源或电力电子逆变器，用于向至少两个电枢相绕组提供正电流和负电流，使得转子以小增量步进旋转响应于一个或多个相绕组中的电流的小变化。

7. 发明授权

US06850029B1 Electrical machines 失效
标题翻译：电机
公开(公告)号：US06850029B1
公开(公告)日：2005-02-01
申请号：US10048432
申请日：2000-08-17
申请人： Charles Pollock , Helen Geraldine Phyllis Pollock
发明人： Charles Pollock , Helen Geraldine Phyllis Pollock
IPC分类号： H02P1/16 , H02P25/08 , H02P7/36
CPC分类号： H02P1/163 , H02P1/16 , H02P25/08 , H02P25/0925
摘要： An electrical machine comprises a rotor without windings, a stator having an armature winding 24, 25 and a field winding 10 for generating a magnetomotive force in a direction extending transversely of the magnetomotive force generated by the armature winding. An electronic circuit 40 is provided for controlling the current in the armature winding 24, 25 such that periods in which a magnetomotive force in one direction is associated with a first current pulse alternate with periods in which a magnetomotive force in the opposite direction is associated with a second current pulse. A position sensor is provided for monitoring the rotational position of the rotor and for supplying output signals dependent on the speed of rotation of the rotor. Furthermore a control system 32 supplies control signals to the circuit 40 to control the current in the armature winding 24, 25. In order to enhance the performance at high speed, the control signals are produced in response to sensor output signals which provide an advanced indication of the rotational position of the rotor. Furthermore, in order to prevent oscillation of the rotor on start-up, the control signals supplied to the circuit 40 during an initial start-up period are each produced after a time delay as compared with the production of the control signals over subsequent cycles of rotation during acceleration of the rotor. This can be achieved with simple on/off control of armature and field switching devices, so that the control circuitry can be produced at relatively low cost.
摘要翻译：电机包括没有绕组的转子，具有电枢绕组24,25的定子和用于在横向于由电枢绕组产生的磁通势横向延伸的方向上产生磁动势的励磁绕组10。提供电子电路40用于控制电枢绕组24,25中的电流，使得一个方向上的磁动势与第一电流脉冲相关联的周期与在相反方向上的磁动势相关联的周期交替第二个电流脉冲。提供了一种位置传感器，用于监测转子的旋转位置，并提供取决于转子旋转速度的输出信号。此外，控制系统32向电路40提供控制信号以控制电枢绕组24,25中的电流。为了在高速下提高性能，响应于提供高级指示的传感器输出信号产生控制信号的转子的旋转位置。此外，为了防止启动时的转子的振荡，在初始启动期间提供给电路40的控制信号分别在时间延迟之后产生，与在随后的周期中的控制信号的产生相比转子加速时的旋转。这可以通过电枢和场开关器件的简单的开/关控制来实现，使得可以以相对低的成本生产控制电路。

8. 发明授权

US06384564B1 Electrical machines 失效
标题翻译：电机
公开(公告)号：US06384564B1
公开(公告)日：2002-05-07
申请号：US09598104
申请日：2000-06-21
申请人： Charles Pollock
发明人： Charles Pollock
IPC分类号： H02P146
CPC分类号： H02K19/06 , H02P25/092
摘要： A two-phase switched reluctance motor comprises a rotor without windings, a stator having windings, and an electronic control circuit for controlling the current in the windings to effect rotation of the rotor. The control circuit includes a capacitance bridge defining a floating point to which one end of each of the windings is coupled to form a resonance circuit. Switching transistors are connected to the windings and are switched in synchronism with rotation of the rotor so as to produce current pulses which are limited by the build-up of voltage at the floating point of the capacitance bridge. This ensures that the current in the windings returns naturally to zero at the end of each excitation pulse, thus providing more efficient power operation and reducing the acoustic noise of the machine.
摘要翻译：两相开关磁阻电动机包括无绕组的转子，具有绕组的定子和用于控制绕组中的电流以实现转子旋转的电子控制电路。控制电路包括限定浮点的电容桥，每个绕组的一端被耦合到该浮点以形成谐振电路。开关晶体管连接到绕组，并与转子的旋转同步地切换，以产生电流脉冲，该电流脉冲受到在电容桥的浮点处的电压的积聚的限制。这确保绕组中的电流在每个激励脉冲结束时自然返回到零，从而提供更有效的功率操作并降低机器的声学噪声。

9. 发明授权

US6037740A Switched reluctance electric machine system 失效
标题翻译：开关磁阻电机系统
公开(公告)号：US6037740A
公开(公告)日：2000-03-14
申请号：US981465
申请日：1998-02-23
申请人： Charles Pollock , Mike Barnes
发明人： Charles Pollock , Mike Barnes
IPC分类号： B60L11/18 , H02J7/02 , H02P25/08 , H02P1/46
CPC分类号： B60L11/1803 , B60L11/1801 , B60L11/1811 , B60L11/1814 , B60L11/1816 , B60L15/007 , H02J7/025 , H02P25/08 , B60L2200/12 , B60L2200/34 , B60L2220/18 , B60L2220/54 , Y02T10/641 , Y02T10/644 , Y02T10/645 , Y02T10/7005 , Y02T10/7072 , Y02T10/92 , Y02T90/127 , Y02T90/14
摘要： A switched reluctance electrical machine system including a switched reluctance machine, a rechargeable DC energy store and principle voltage terminals connectable to an external power source. The switched reluctance machine comprises a rotor, a stator and windings wherein the windings include at least two closely-coupled coils and a power converter for controlling current flow in the windings. The power converter has first and second circuits. The first circuit contains one of the closely-coupled coils and the principle voltage terminals while the second circuit contains the other of the closely-coupled coils and the energy store. A first switching arrangement is connected in series with the coils in the first circuit and a second switching arrangement is connected in series with the coils in the second circuit. An electronic controller controls the switching arrangements so that, in a first operational mode, current flows in one direction in the coils during normal machine operation and, in a second operational mode, current flows in the coils in the opposite direction to charge the energy store from an external power source.
摘要翻译： PCT No.PCT / GB96 / 01597第 371日期1998年2月23日 102（e）1998年2月23日PCT PCT 1996年7月4日PCT公布。出版物WO97 / 02649 日期1997年1月23日一种开关磁阻电机系统，包括开关磁阻电机，可再充电直流能量存储器和可连接到外部电源的主电压端子。开关磁阻电机包括转子，定子和绕组，其中绕组包括至少两个紧密耦合的线圈和用于控制绕组中的电流的功率转换器。电源转换器具有第一和第二电路。第一电路包含紧密耦合的线圈和主电压端子之一，而第二电路包含紧密耦合的线圈和能量存储器中的另一个。第一开关装置与第一电路中的线圈串联连接，第二开关装置与第二电路中的线圈串联连接。电子控制器控制开关装置，使得在第一操作模式中，在正常机器操作期间，电流在线圈中沿一个方向流动，并且在第二操作模式中，电流沿相反方向在线圈中流动以对能量存储器充电来自外部电源。

10. 发明授权

US5767638A Electric motor drive 失效
标题翻译：电机驱动
公开(公告)号：US5767638A
公开(公告)日：1998-06-16
申请号：US556927
申请日：1996-02-22
申请人： Chi Yao Wu , Charles Pollock
发明人： Chi Yao Wu , Charles Pollock
IPC分类号： H02P25/08 , H02P7/00
CPC分类号： H02P25/0925
摘要： A method of driving an electric motor having at least one coil winding comprising using a switching operation when the current in the winding is to be switched from a first state to a second state. The switching operation has at least first and second switching steps, the interval between which is approximately equal to half the period of a dominant frequency of vibration of the motor (or to an integral multiple of the period plus a half). This reduces vibrations causing acoustic noise, enabling the motor to be operated more quietly. One or more intermediate steps may be included in the switching operation.
摘要翻译： PCT No.PCT / GB94 / 01165 Sec。 371日期1996年2月22日 102（e）日期1996年2月22日PCT 1994年5月27日PCT公布。公开号WO94 / 28618 PCT 日期1994年12月8日一种驱动具有至少一个线圈绕组的电动机的方法，包括当绕组中的电流将从第一状态切换到第二状态时使用切换操作。开关操作至少具有第一和第二切换步骤，其间的间隔大致等于电动机的主要振动频率的周期的一半（或周期加一半的整数倍）。这减少了引起声音噪音的振动，使马达能够更安静地操作。切换操作中可以包括一个或多个中间步骤。

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