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1. 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。

2. 发明授权

US06788020B1 Electrical machines 失效
标题翻译：电机
公开(公告)号：US06788020B1
公开(公告)日：2004-09-07
申请号：US10048501
申请日：2002-06-25
申请人： Charles Pollock , Helen Geraldine Phyllis Pollock
发明人： Charles Pollock , Helen Geraldine Phyllis Pollock
IPC分类号： G05B1128
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 electric 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 moor. Furthermore a control system (32) supplies control signals to the circuit (40) to control the current in the armature winding (24, 25), each control signal being produced in response to detection of a respective one of the output signals from the position sensor and being maintained for a length of time determined by the duration of the output signal. Such an arrangement enables control of acceleration, no-load speed and loaded torque-speed characteristics (and braking of the machine) to be achieved with simple on/off control of armature and field switching devices (if present), so that the control circuitry can be produced at relatively low cost. Simplification of the control circuitry is further ensured by the fact that such control can be effected without current sensing.
摘要翻译：电机包括无绕组的转子，具有电枢绕组（24,25）和励磁绕组（10）的定子，用于沿横向于由电枢绕组产生的磁动势延伸的方向产生磁动势。提供电路（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相反的磁动势的周期交替方向与第二电流脉冲相关联。提供了一种位置传感器，用于监测转子的旋转位置，并提供取决于停泊转速的输出信号。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，每个控制信号是响应于来自位置的各个输出信号的检测而产生的传感器并保持一段时间，由输出信号的持续时间决定。这样的布置使得能够通过电枢和场开关装置（如果存在）的简单的开/关控制来实现加速度，空载速度和负载转矩 - 速度特性（以及机器的制动）的控制，使得控制电路可以以相对较低的成本生产。通过这样的事实可以进一步确保控制电路的简化，即可以在没有电流检测的情况下实现这种控制。

3. 发明授权

US08022649B2 Control of switched reluctance machines 有权
标题翻译：开关磁阻电机的控制
公开(公告)号：US08022649B2
公开(公告)日：2011-09-20
申请号：US12092159
申请日：2006-11-01
申请人： Charles Pollock , Helen Geraldine Phyllis Pollock
发明人： Charles Pollock , Helen Geraldine Phyllis Pollock
IPC分类号： H02P6/18
CPC分类号： H02P25/098
摘要： A flux switching electric motor (102) is disclosed. The motor comprises a rotor (104), a stator (106), field windings (124, 126) and armature windings (128, 130). #A microcontroller (134) controls supply of electrical current to the field and armature windings. A rotor position sensor includes a divider for (i) receiving an input signal dependent upon the rate of change of current in at least one field winding, (ii) receiving an input signal dependent upon the voltage across at least one armature winding, current through which causes at least part of the current in the field winding, and (iii) providing the microcontroller (134) with a control signal which is dependent upon the ratio of the input signals received by the divider.
摘要翻译：公开了磁通切换电动机（102）。电动机包括转子（104），定子（106），励磁绕组（124,126）和电枢绕组（128,130）。 #A微控制器（134）控制到场和电枢绕组的电流供应。转子位置传感器包括分配器，用于（i）接收取决于至少一个励磁绕组中的电流变化率的输入信号，（ii）接收取决于至少一个电枢绕组上的电压的输入信号，通过其导致场绕组中的电流的至少一部分，以及（iii）向微控制器（134）提供取决于由分压器接收的输入信号的比率的控制信号。

4. 发明授权

US06646406B1 Electrical machines 有权
标题翻译：电机
公开(公告)号：US06646406B1
公开(公告)日：2003-11-11
申请号：US10049263
申请日：2002-04-26
申请人： Charles Pollock , Helen Geraldine Phyllis Pollock , Richard Thomas Walter
发明人： Charles Pollock , Helen Geraldine Phyllis Pollock , Richard Thomas Walter
IPC分类号： G05B1128
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 at a rate dependent on the speed of rotation of the rotor. Furthermore a control system supplies control signals to the circuit 40 to control the current in the armature winding 24, 25 in response to the output signals. The control system uses a control signal of extended duration at the beginning of the first current pulse on start-up of the motor from rest as compared with the duration of the control signals produced over the remainder of the first current pulse during acceleration of the rotor. Such an arrangement produces efficient starting from rest, and enables control of acceleration, no-load speed, loaded torque-speed characteristics of the machine to 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. Simplification of the control circuitry is further ensured by the fact that such control can be effected without current sensing.
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，用于监视转子的旋转位置，并以取决于转子旋转速度的速率提供输出信号。此外，控制系统响应于输出信号向电路40提供控制信号以控制电枢绕组24,25中的电流。与在转子加速期间在第一电流脉冲的剩余部分产生的控制信号的持续时间相比，控制系统使用在第一电流脉冲开始时延长持续时间的控制信号，。这种布置从休息开始产生有效的起动，并且能够通过电枢和励磁开关装置的简单的开关控制来实现加速度，空载转速，加载转矩速度特性的控制，从而控制电路可以以相对较低的成本生产。通过这样的事实可以进一步确保控制电路的简化，即可以在没有电流检测的情况下实现这种控制。

5. 发明授权

US07429840B2 Control of an electrical reluctance machine 有权
标题翻译：电磁阻电机的控制
公开(公告)号：US07429840B2
公开(公告)日：2008-09-30
申请号：US10526986
申请日：2003-09-12
申请人： Charles Pollock , Helen Geraldine Phyllis Pollock
发明人： Charles Pollock , Helen Geraldine Phyllis Pollock
IPC分类号： H02K21/00
CPC分类号： H02P6/182 , H02P1/163
摘要： An electrical machine having stator (30) and rotor (31) is disclosed. The motor has field windings (F) and armature windings (A) energized by a suitable power electronic controller (401). A controller (400) sends signals to the power electronic controller (401) to control the armature current to control operation of the machine. When the machine is operating as a motor, the armature windings (A) will be supplied with electrical current from the power electronic controller by the application of applied voltage in synchronism with the rotation of the rotor (31). A mutually induced first electrical signal dependent on rotational position of the rotor will be induced within the field windings (F). This will create a superimposed gradient in the field current delivered by the power electronic controller (401). The mutually induced first electrical signal can be extracted from the field current by block (402) which may be a differentiator circuit or may be a coil coupled to the magnetic field around the field current conductor. A signal conditioning circuit (403) is provided which may contain a filter circuit. Block (404) creates a reference voltage for the comparator (405). The reference voltage can be zero such that the comparator (405) determines the polarity of the mutually induced first electrical signal. The output from the comparator is a digital signal indicating if the mutually induced first electrical signal is less than or greater than the threshold applied by block (404). This comparator output, a second electrical signal, represents the rotational position of the rotor relative to the stator and is supplied to the controller (400) to maintain synchronism between the armature excitation and the rotor position.
摘要翻译：公开了一种具有定子（30）和转子（31）的电机。电动机具有由合适的电力电子控制器（401）激励的励磁绕组（F）和电枢绕组（A）。控制器（400）向电力电子控制器（401）发送信号以控制电枢电流以控制机器的操作。当机器作为电动机工作时，电枢绕组（A）将通过与转子（31）的旋转同步地施加施加的电压从电力电子控制器提供电流。在励磁绕组（F）内将引起取决于转子旋转位置的相互诱导的第一电信号。这将在由电力电子控制器（401）传送的励磁电流中产生叠加的梯度。相互诱导的第一电信号可以通过块（402）从场电流提取，块（402）可以是微分电路，或者可以是耦合到励磁电流导体周围的磁场的线圈。提供信号调节电路（403），其可以包含滤波电路。块（404）创建比较器（405）的参考电压。参考电压可以为零，使得比较器（405）确定互相感应的第一电信号的极性。来自比较器的输出是指示相互感应的第一电信号是否小于或大于由块（404）应用的阈值的数字信号。该比较器输出第二电信号表示转子相对于定子的旋转位置，并被提供给控制器（400）以保持电枢励磁和转子位置之间的同步。

6. 发明授权

US06867561B1 Electrical machine 失效
标题翻译：电机
公开(公告)号：US06867561B1
公开(公告)日：2005-03-15
申请号：US10048509
申请日：2000-08-17
申请人： Charles Pollock , Helen Geraldine Phyllis Pollock , Richard Thomas Walter
发明人： Charles Pollock , Helen Geraldine Phyllis Pollock , Richard Thomas Walter
IPC分类号： H02P1/16 , H02P25/08 , H02P3/08 , H02P3/12
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 at a rate dependent on the speed of rotation of the rotor. Furthermore a control system supplies control signals to the circuit 40 to control the current in the armature winding 24, 25 in response to the output signals. The control system uses a control signal of extended duration at the beginning of the first current pulse on start-up of the motor from rest as compared with the duration of the control signals produced over the remainder of the first current pulse during acceleration of the rotor. Such an arrangement produces efficient starting from rest, and enables control of acceleration, no-load speed, loaded torque-speed characteristics of the machine to 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. Simplification of the control circuitry is further ensured by the fact that such control can be effected without current sensing.
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，用于监视转子的旋转位置，并以取决于转子旋转速度的速率提供输出信号。此外，控制系统响应于输出信号向电路40提供控制信号以控制电枢绕组24,25中的电流。与在转子加速期间在第一电流脉冲的剩余部分产生的控制信号的持续时间相比，控制系统使用在第一电流脉冲开始时延长持续时间的控制信号，。这种布置从休息开始产生有效的起动，并且能够通过电枢和励磁开关装置的简单的开关控制来实现加速度，空载转速，加载转矩速度特性的控制，从而控制电路可以以相对较低的成本生产。通过这样的事实可以进一步确保控制电路的简化，即可以在没有电流检测的情况下实现这种控制。

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