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1. 发明申请

WO2011128662A2 CONTROL OF A BRUSHLESS MOTOR 审中-公开
标题翻译：无刷电机的控制
公开(公告)号：WO2011128662A2
公开(公告)日：2011-10-20
申请号：PCT/GB2011/050633
申请日：2011-03-29
申请人： DYSON TECHNOLOGY LIMITED , CLOTHIER, Andrew , GREETHAM, Stephen , TUFTNELL, Nicholas
发明人： CLOTHIER, Andrew , GREETHAM, Stephen , TUFTNELL, Nicholas
CPC分类号： H02P6/008 , H02P6/085 , H02P6/15 , H02P6/181 , H02P6/26 , H02P2209/07
摘要： A method of controlling a brushless motor, the method comprising 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 comprises freewheeling the winding, whilst the second process comprises 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，所述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，以及执行第一过程或第二过程对绕组中的电流的响应超过与整流电压成比例的阈值。第一种方法包括续流绕组，而第二种方法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。

2. 发明申请

WO2010100465A2 ELECTRIC MACHINE 审中-公开
标题翻译：电机
公开(公告)号：WO2010100465A2
公开(公告)日：2010-09-10
申请号：PCT/GB2010/050301
申请日：2010-02-22
申请人： DYSON TECHNOLOGY LIMITED , CHEN, Yu , CELIK, Tuncay , CLOTHIER, Andrew , GREETHAM, Stephen
发明人： CHEN, Yu , CELIK, Tuncay , CLOTHIER, Andrew , GREETHAM, Stephen
CPC分类号： H02K29/08 , H02K11/215
摘要： An electric machine (1) comprising a stator (3) and a Hall-effect sensor (4), wherein the stator (3) comprises a pair of asymmetric poles (8,9) and the sensor (4) is oriented such that the plane of the sensor (4) is substantially parallel to armature field lines (17) passing through the sensor (4).
摘要翻译：一种包括定子（3）和霍尔效应传感器（4）的电机（1），其中所述定子（3）包括一对不对称极（8,9），并且所述传感器（4）被定向成使得传感器（4）的平面基本上平行于穿过传感器（4）的电枢磁场线（17）。

3. 发明申请

WO2005076454A1 CONTROL OF ELECTRICAL MACHINES 审中-公开
标题翻译：电机控制
公开(公告)号：WO2005076454A1
公开(公告)日：2005-08-18
申请号：PCT/GB2005/000297
申请日：2005-01-27
申请人： DYSON TECHNOLOGY LIMITED , CLOTHIER, Andrew Charlton , GREETHAM, Stephen , DAI, Hanping
发明人： CLOTHIER, Andrew Charlton , GREETHAM, Stephen , DAI, Hanping
IPC分类号： H02P5/05
CPC分类号： H02P25/0925 , H02P6/153
摘要： An electrical machine, such as a switched reluctance motor (7), has a rotor and at least one electrically energisable phase winding. A control map is derived during production, comprising a predetermined advance angle profile representing energisation of the phase winding with respect to angular position of the rotor over a range of rotor speeds. This is stored in memory in a controller (9), together with an angle correction factor to be applied to a predetermined portion of the advance angle profile. The angle correction factor compensates for the difference between a desired input power and the measured input power. The correction factor may be transmitted to the controller by means of radio frequency signals.
摘要翻译：诸如开关磁阻电动机（7）的电机具有转子和至少一个电可激励相绕组。在生产期间导出控制图，包括预定的提前角分布，其表示在转子速度的范围内相对于转子的角位置的相绕组的通电。这被存储在控制器（9）的存储器中，以及将要施加到提前角轮廓的预定部分的角度校正因子。角度校正系数补偿所需输入功率与测得的输入功率之差。校正因子可以通过射频信号发送到控制器。

4. 发明申请

WO2011128659A2 CONTROL OF A BRUSHLESS MOTOR 审中-公开
标题翻译：无刷电机的控制
公开(公告)号：WO2011128659A2
公开(公告)日：2011-10-20
申请号：PCT/GB2011/050629
申请日：2011-03-29
申请人： DYSON TECHNOLOGY LIMITED , CLOTHIER, Andrew , GREETHAM, Stephen
发明人： CLOTHIER, Andrew , GREETHAM, Stephen
CPC分类号： H02P6/14 , H02P6/26 , H02P6/28 , H02P2209/07
摘要： A method of controlling a brushless motor, the method comprising 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，所述方法包括在所述电动机的每个电半周期上激励所述电动机的绕组导通时段。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。

5. 发明申请

WO2010100463A2 ELECTRIC MACHINE 审中-公开
标题翻译：电机
公开(公告)号：WO2010100463A2
公开(公告)日：2010-09-10
申请号：PCT/GB2010/050299
申请日：2010-02-22
申请人： DYSON TECHNOLOGY LIMITED , GREETHAM, Stephen , CLOTHIER, Andrew
发明人： GREETHAM, Stephen , CLOTHIER, Andrew
CPC分类号： H02K1/143 , H02K1/08 , H02K1/146
摘要： An electric machine (10) comprising a permanent-magnet rotor (11) and a stator (12). The stator (12) comprises a plurality of poles(18,19), each pole having a leading edge (27) and a trailing edge (28) relative to the direction of rotation of the rotor (11). The leading edge (27) of each pole (18,19) is thicker than the trailing edge (28) in a direction normal to the rotational axis of the rotor (11).
摘要翻译：一种包括永磁转子（11）和定子（12）的电机（10）。定子（12）包括多个极（18,19），每个极相对于转子（11）的旋转方向具有前缘（27）和后缘（28）。每个极（18,19）的前缘（27）在垂直于转子（11）的旋转轴线的方向上比后缘（28）厚。

6. 发明申请

WO2005076459A1 CONTROL OF ELECTRICAL MACHINES 审中-公开
标题翻译：电机控制
公开(公告)号：WO2005076459A1
公开(公告)日：2005-08-18
申请号：PCT/GB2005/000296
申请日：2005-01-27
申请人： DYSON TECHNOLOGY LIMITED , CLOTHIER, Andrew, Charlton , GREETHAM, Stephen , DAI, Hanping
发明人： CLOTHIER, Andrew, Charlton , GREETHAM, Stephen , DAI, Hanping
IPC分类号： H02P7/05
CPC分类号： H02P25/092
摘要： An electrical machine, such as a switched reluctance motor (25), has a rotor and a controller (24) arranged to energise at least one electrically energisable phase winding in dependence on the angular position of the rotor. The controller typically employs a control law table that was derived by applying a predetermined DC link voltage to the windings. Differences between an applied DC link voltage (20) and the predetermined DC link voltage may be compensated by applying a predetermined correction to the angular position of energisation of the phase winding in dependence on the value of the 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（25）的电机具有转子和控制器（24），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。控制器通常采用通过将预定的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（20）与预定DC链路电压之间的差异可以通过根据所施加的DC链路电压的值对相绕组的激励的角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。

7. 发明申请

WO2011128686A2 CONTROL OF A BRUSHLESS PERMANENT-MAGNET MOTOR 审中-公开
标题翻译：无刷永磁电机的控制
公开(公告)号：WO2011128686A2
公开(公告)日：2011-10-20
申请号：PCT/GB2011/050733
申请日：2011-04-13
申请人： DYSON TECHNOLOGY LIMITED , CLOTHIER, Andrew , GREETHAM, Stephen
发明人： CLOTHIER, Andrew , GREETHAM, Stephen
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, the method comprising 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，所述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，以及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。

8. 发明申请

WO2011128660A2 CONTROL OF A BRUSHLESS MOTOR 审中-公开
标题翻译：无刷电机的控制
公开(公告)号：WO2011128660A2
公开(公告)日：2011-10-20
申请号：PCT/GB2011/050630
申请日：2011-03-29
申请人： DYSON TECHNOLOGY LIMITED , CLOTHIER, Andrew , GREETHAM, Stephen , CELIK, Tuncay
发明人： CLOTHIER, Andrew , GREETHAM, Stephen , CELIK, Tuncay
CPC分类号： H02P6/14 , H02P6/26 , H02P6/28 , H02P2209/07
摘要： A method of controlling a brushless motor, the method comprising 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，所述方法包括在预定转子位置之前提前期间激励所述电动机的绕组。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。

9. 发明申请

WO2004057747A1 POWER CONVERSION APPARATUS 审中-公开
标题翻译：功率转换装置
公开(公告)号：WO2004057747A1
公开(公告)日：2004-07-08
申请号：PCT/GB2003/005384
申请日：2003-12-10
申请人： DYSON LIMITED , GREETHAM, Stephen , LEIGHTON, Nigel, James , CLOTHIER, Andrew, Charlton , HAYWOOD, Mark, Henry , PHILLIPS, Neil, William
发明人： GREETHAM, Stephen , LEIGHTON, Nigel, James , CLOTHIER, Andrew, Charlton , HAYWOOD, Mark, Henry , PHILLIPS, Neil, William
IPC分类号： H02M7/12
CPC分类号： H02M1/425 , H02M1/4258 , H02M3/285 , H02M7/53871 , H02P25/08 , Y02B70/126
摘要： The invention provides a power conversion apparatus for converting power from an alternating source to dc, comprising: an input stage for receiving power from the alternating source, which input stage includes an input filter (C1, C2, L1), rectifying means (D1, D2, D3, D4) for rectifying the alternating signal, a capacitor (Cdc) for storing energy from the rectified signal, an output for outputting power from the rectifying means (D1, D2, D3, D4) and the capacitor (Cdc) to the pulsed load, wherein the pulsed load has at least one switched winding (W1, W2) which receives power from the output, and wherein the capacitor (Cdc) is dimensioned such that the voltage across the capacitor (Cdc) 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 is able to fall within the limits imposed by EMC regulations, and constitutes a simpler and cheaper apparatus in comparison to known converters of a similar power rating.
摘要翻译：本发明提供一种用于将来自交流电源的功率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，该输入级包括输入滤波器（C1，C2，L1），整流装置（D1， D2，D3，D4），用于从整流信号存储能量的电容器（Cdc），将来自整流装置（D1，D2，D3，D4）和电容器（Cdc）的电力输出到所述脉冲负载，其中所述脉冲负载具有从所述输出端接收功率的至少一个开关绕组（W1，W2），并且其中所述电容器（Cdc）的尺寸设定成使得所述电容器（Cdc）两端的电压低于在交替源的每个周期期间源的标称峰值整流电压。这种转换器的优点在于，从交流电源提取的电流可以落在EMC规定的限制之内，与已知的类似额定功率的转换器相比，构成了一种更简单和便宜的装置。

10. 发明申请

WO2011128684A2 CONTROL OF A BRUSHLESS MOTOR 审中-公开
标题翻译：无刷电机的控制
公开(公告)号：WO2011128684A2
公开(公告)日：2011-10-20
申请号：PCT/GB2011/050731
申请日：2011-04-13
申请人： DYSON TECHNOLOGY LIMITED , GREETHAM, Stephen
发明人： GREETHAM, Stephen
CPC分类号： H02P6/14 , H02P6/26 , H02P6/28 , H02P23/26 , H02P2209/07
摘要： A method of controlling a brushless motor, the method comprising exciting a winding of the motor until current in the winding exceeds a threshold, and continuing to excite the winding for an overrun period. The length of the overrun period is then adjusted in response to a change in one of time, motor speed and excitation voltage. 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，所述方法包括激励所述电动机的绕组，直到所述绕组中的电流超过阈值，并且继续激励所述绕组超限周期。然后响应于时间，电机速度和激励电压之一的变化来调整超限周期的长度。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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