公开(公告)号：WO2012025707A2

公开(公告)日：2012-03-01

申请号：PCT/GB2011001232

申请日：2011-08-19

Applicant: STORED ENERGY TECHNOLOGY LTD ,  TOTAL MOTION SYSTEMS LTD ,  INTELLIGENT MOTION CONTROL LTD ,  MEI TIAN XIANG

Inventor： MEI TIAN XIANG

IPC: H02P6/00

CPC classification number: H02K3/28 ,  H02K16/02 ,  H02K29/03 ,  H02P6/005 ,  H02P6/10

Abstract: An electrical machine (10) has three phase windings (12). Each phase winding (12) is connected to a respective current source (18). Each current source 18 provides alternating current to the corresponding winding (12). The current source 18 is connected independently to the respective winding (12). The electrical angles of the phase windings (12) are so arranged that none of the phase windings (12) has a zero torque angle which coincides with a zero torque angle of another phase winding (12).

Abstract translation: 电机（10）具有三相绕组（12）。 每个相绕组（12）连接到相应的电流源（18）。 每个电流源18向相应的绕组（12）提供交流电流。 电流源18独立地连接到相应的绕组（12）。 相绕组（12）的电角度被布置成使得相绕组（12）中没有一个具有与另一相绕组（12）的零转矩角度重合的零转矩角。

公开(公告)号：WO2013124631A3

公开(公告)日：2013-10-24

申请号：PCT/GB2013050369

申请日：2013-02-15

Applicant: STORED ENERGY TECHNOLOGY LTD

Inventor： BROWNSON ANDREW ,  GIBSON DAVID

IPC: H02P6/18 ,  H02P6/20

CPC classification number: H02P6/187 ,  H02P6/185 ,  H02P6/20

Abstract: Three windings (12) of a permanent magnet synchronousmotor10are connected from a common point (22) to respective feed points (24) and driven as a different phase of the motor 10by pwm excitation voltages from as witching circuit (28) under the control of a control circuit (38). Eight possible excitations state combinations exist for the circuit in Fig. 2 depending on whether the output of the circuit (28) is at supply voltage or ground for each of the three phases. Measurements are made of ratios of the voltage at the common point (22) as a proportion of the supply voltage, during various excitation states,and a comparison of these ratio values is used to derive position information for the rotor16of the motor (10).

Abstract translation: 永久磁铁同步电动机10的三个绕组（12）从公共点（22）连接到相应的馈电点（24），并且作为电动机10的不同相位被电动机驱动。 控制电路（38）。 对于图1中的电路，存在八种可能的激励状态组合。 2取决于电路（28）的输出是否处于三相中的每一个的电源电压或接地。 在各种激励状态期间，测量在公共点（22）处的电压与电源电压的比例，并且这些比值的比较用于导出电动机（10）的转子16的位置信息。