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公开(公告)号：US07443125B2
公开(公告)日：2008-10-28
申请号：US10538508
申请日：2003-12-10
申请人： Andrew Charlton Clothier , Stephen Greetham , Mark Henry Haywood , Nigel James Leighton , Neil William Phillips
发明人： Andrew Charlton Clothier , Stephen Greetham , Mark Henry Haywood , Nigel James Leighton , Neil William Phillips
IPC分类号： H02P25/08
CPC分类号： H02M1/425 , H02M1/4258 , H02M3/285 , H02M7/53871 , H02P25/08 , Y02B70/126
摘要： A power conversion apparatus for converting power from an alternating source to dc includes an input stage for receiving power from the alternating source, which includes an input filter, a rectifier for rectifying the alternating signal, a capacitor for storing energy from the rectified signal, and an output for outputting power from the rectifying means and the capacitor to the pulsed load. The pulsed load has at least one switched winding which receives power from the output, and wherein the capacitor is configured such that the voltage across the capacitor falls below 15% of the nominal peak rectified voltage of the source during each cycle of the alternating source. A converter of this kind provides benefits in that the current drawn from the ac supply falls within limits imposed by regulations and is simpler and cheaper than known converters of a similar power rating.
摘要翻译： 用于将来自交流电源的电力转换为直流的电力转换装置包括用于从交流电源接收功率的输入级，其包括输入滤波器，用于整流交流信号的整流器，用于存储来自整流信号的能量的电容器，以及 用于从整流装置和电容器输出功率到脉冲负载的输出。 脉冲负载具有从输出端接收功率的至少一个开关绕组，并且其中电容器配置成使得电容器两端的电压在交流源的每个周期期间降低到源极额定峰值整流电压的15％以下。 这种转换器的优点在于，从交流电源获取的电流属于法规规定的限制，并且比类似额定功率的已知转换器更简单和便宜。
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2.发明授权公开(公告)号：US09369011B2
公开(公告)日：2016-06-14
申请号：US12707500
申请日：2010-02-17
摘要： An electric machine that includes a permanent-magnet rotor and a stator. The stator includes a plurality of poles, each pole having a leading edge and a trailing edge relative to the direction of rotation of the rotor. The leading edge of each pole is thicker than the trailing edge in a direction normal to the rotational axis of the rotor.
摘要翻译： 一种包括永磁转子和定子的电机。 定子包括多个极，每个极具有相对于转子旋转方向的前缘和后缘。 每个极的前缘在垂直于转子的旋转轴线的方向上比后缘厚。
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公开(公告)号：US20100225197A1
公开(公告)日：2010-09-09
申请号：US12709293
申请日：2010-02-19
IPC分类号： H02K1/14
CPC分类号： H02K1/143 , H02K1/185 , H02K21/185 , H02K2213/03
摘要： A stator core that includes a pair of poles separated by an air gap. Each pole includes a first side adjacent the air gap and a second opposite side remote from the air gap. A pole arc is formed in the first side and an arcuate mounting recess is formed in the second side of each pole. Additionally, an electric machine that includes the stator core.
摘要翻译： 定子铁芯，其包括由气隙隔开的一对极。 每个极包括邻近气隙的第一侧和远离气隙的第二相对侧。 在第一侧形成极弧，并且在每个极的第二侧形成弓形安装凹部。 另外，包括定子铁心的电机。
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公开(公告)号：US07701164B2
公开(公告)日：2010-04-20
申请号：US10588281
申请日：2005-01-27
CPC分类号： H02P25/092
摘要： An electrical machine, such as a switched reluctance motor, has a rotor and a controller arranged to energize at least one electrically energizable phase winding in dependence on the angular position of the rotor. The controller may employ a control law table derived by applying a predetermined DC link voltage to the windings. Differences between an applied DC link voltage and the predetermined DC link voltage may be compensated by applying a predetermined correction to the angular position of energization of the phase winding in dependence on the value applied DC link voltage. Such a compensation factor may be derived from a relationship held in memory.
摘要翻译： 诸如开关磁阻电动机的电机具有转子和控制器，其被布置成根据转子的角位置激励至少一个可电激励相绕组。 控制器可以采用通过将预定的DC链路电压施加到绕组而导出的控制律表。 施加的DC链路电压与预定DC链路电压之间的差异可以通过根据施加的DC链路电压对相绕组的通电角度位置施加预定的校正来补偿。 这样的补偿因子可以从存储器中保持的关系导出。
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公开(公告)号：US08988021B2
公开(公告)日：2015-03-24
申请号：US13083199
申请日：2011-04-08
摘要： A method of controlling a brushless motor that includes rectifying an alternating voltage to provide a rectified voltage having a ripple of at least 50%, exciting a winding of the motor with the rectified voltage, and performing a first process or a second process in response to current in the winding exceeding a threshold that is proportional to the rectified voltage. The first process includes freewheeling the winding, while the second process includes continuing to excite the winding for an overrun period and freewheeling the winding at the end of the overrun period. Additionally, a control system that implements the method, and a motor system that incorporates the control system.
摘要翻译： 一种控制无刷电动机的方法，包括对交流电压进行整流，以提供具有至少50％的纹波的整流电压，激励具有整流电压的电动机的绕组，以及响应于 绕组中的电流超过与整流电压成比例的阈值。 第一个过程包括绕组的续流，而第二个过程包括继续激励绕组超越时间，并在超速期结束时续流绕组。 另外，实现该方法的控制系统以及并入控制系统的电机系统。
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公开(公告)号：US08937446B2
公开(公告)日：2015-01-20
申请号：US13087109
申请日：2011-04-14
CPC分类号： H02P6/008 , H02P6/15 , H02P6/26 , H02P6/28 , H02P25/0925 , H02P2209/07
摘要： A method of controlling a brushless permanent-magnet motor that includes rectifying an alternating voltage to provide a rectified voltage having a ripple of at least 50%, and exciting a winding of the motor with the rectified voltage. The winding is excited in advance of zero-crossings of back EMF by an advance period and is excited for a conduction period over each electrical half-cycle of the motor. The advance period and/or the conduction period are then adjusted in response to changes in the speed of the motor and/or the RMS value of the alternating voltage so as to maintain constant average power. Additionally, a control system that implements the method, and a motor system that incorporates the control system.
摘要翻译： 一种控制无刷永磁电动机的方法，包括对交流电压进行整流，以提供具有至少50％的纹波的整流电压，并且激励具有整流电压的电动机的绕组。 绕组在反电动势的零交叉之前被提前激励，并且在电动机的每个电半周期的激励下导通周期。 然后响应于电动机的速度和/或交流电压的RMS值的变化来调整前进周期和/或导通周期，以保持恒定的平均功率。 另外，实现该方法的控制系统以及并入控制系统的电机系统。
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公开(公告)号：US08648558B2
公开(公告)日：2014-02-11
申请号：US13081290
申请日：2011-04-06
IPC分类号： H02P23/12
CPC分类号： H02P6/14 , H02P6/26 , H02P6/28 , H02P2209/07
摘要： A method of controlling a brushless motor that includes exciting a winding of the motor for a conduction period over each electrical half-cycle of the motor. The length of the conduction period is defined by a waveform that varies periodically with time. Additionally, a control system that implements the method, and a motor system that incorporates the control system.
摘要翻译： 一种控制无刷电动机的方法，该方法包括在电动机的每个半周期上激励电动机绕组的导通时段。 导通周期的长度由随时间周期性变化的波形定义。 另外，实现该方法的控制系统以及并入控制系统的电机系统。
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8.发明授权Stator with asymmetric poles and sensor oriented to more accurately determine position of rotor 有权具有不对称极点和传感器的定子更准确地确定转子的位置公开(公告)号：US08432078B2
公开(公告)日：2013-04-30
申请号：US12709104
申请日：2010-02-19
IPC分类号： H02K11/00
CPC分类号： H02K29/08 , H02K11/215
摘要： An electric machine that includes a stator and a Hall-effect sensor. The stator includes a pair of asymmetric poles and the sensor is oriented such that the plane of the sensor is substantially parallel to armature field lines passing through the sensor.
摘要翻译： 一种包括定子和霍尔效应传感器的电机。 定子包括一对不对称极，并且传感器被定向成使得传感器的平面基本上平行于通过传感器的电枢磁场线。
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公开(公告)号：US08773052B2
公开(公告)日：2014-07-08
申请号：US13085155
申请日：2011-04-12
IPC分类号： H02P23/12
CPC分类号： H02P6/14 , H02P6/26 , H02P6/28 , H02P2209/07
摘要： A method of controlling a brushless motor that includes exciting a winding of the motor in advance of predetermined rotor positions by an advance period. The length of the advance period is defined by a waveform that varies periodically with time. Additionally, a control system that implements the method, and a motor system that incorporates the control system.
摘要翻译： 一种控制无刷电动机的方法，包括在预定转子位置之前提前期间激励电动机的绕组。 前进周期的长度由随时间周期性变化的波形定义。 另外，实现该方法的控制系统以及并入控制系统的电机系统。
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公开(公告)号：US20110254476A1
公开(公告)日：2011-10-20
申请号：US13083199
申请日：2011-04-08
IPC分类号： H02P6/14
摘要： A method of controlling a brushless motor that includes rectifying an alternating voltage to provide a rectified voltage having a ripple of at least 50%, exciting a winding of the motor with the rectified voltage, and performing a first process or a second process in response to current in the winding exceeding a threshold that is proportional to the rectified voltage. The first process includes freewheeling the winding, while the second process includes continuing to excite the winding for an overrun period and freewheeling the winding at the end of the overrun period. Additionally, a control system that implements the method, and a motor system that incorporates the control system.
摘要翻译： 一种控制无刷电动机的方法，包括对交流电压进行整流，以提供具有至少50％的纹波的整流电压，激励具有整流电压的电动机的绕组，以及响应于 绕组中的电流超过与整流电压成比例的阈值。 第一个过程包括绕组的续流，而第二个过程包括继续激励绕组超越时间，并在超速期结束时续流绕组。 另外，实现该方法的控制系统以及并入控制系统的电机系统。
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