公开(公告)号：US20070278983A1

公开(公告)日：2007-12-06

申请号：US10588281

申请日：2005-01-27

申请人： Andrew Clothier ,  Stephen Greetham ,  Hanping Dai

发明人： Andrew Clothier ,  Stephen Greetham ,  Hanping Dai

IPC分类号： H02P25/08

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。

公开(公告)号：US20070252551A1

公开(公告)日：2007-11-01

申请号：US10588289

申请日：2005-01-27

申请人： Andrew Clothier ,  Stephen Greetham ,  Hanping Dai

发明人： Andrew Clothier ,  Stephen Greetham ,  Hanping Dai

IPC分类号： H02P6/14

CPC分类号： H02P25/0925 ,  H02P6/153

摘要： An electrical machine, such as a switched reluctance motor, has a rotor and at least one electrically energizable phase winding. A control map is derived during production that includes a predetermined advance angle profile representing the energization of the phase winding with respect to the angular position of the rotor over a range of rotor speeds. This is stored in memory in a controller 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，其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。 将其与控制器中的存储器一起存储在角度校正因子中，以将其应用于提前角分布的预定部分。 角度校正系数补偿所需输入功率与测量输入功率之差。 校正因子可以通过射频信号发送到控制器。

公开(公告)号：US20060132081A1

公开(公告)日：2006-06-22

申请号：US10538508

申请日：2003-12-10

申请人： Andrew Clothier ,  Stephen Greetham ,  Mark Haywood ,  Nigel Leighton ,  Neil Phillips

发明人： Andrew Clothier ,  Stephen Greetham ,  Mark Haywood ,  Nigel Leighton ,  Neil Phillips

IPC分类号： H02P1/46

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，并且其中电容器被配置为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。