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1. 发明公开

EP3550716A1 CONTROLLER 有权
公开(公告)号：EP3550716A1
公开(公告)日：2019-10-09
申请号：EP18165548.1
申请日：2018-04-03
申请人： NXP USA, Inc.
发明人： PROKOP, Libor
IPC分类号： H02P6/16 , H02P6/182
摘要： The disclosure relates to a controller and associated method for controlling a multiphase synchronous motor with a rotor and a plurality of windings for receiving a plurality of motor vectors, the method comprising, for a motor flux vector: setting a first winding of the motor to a floating state in which the first winding is electrically floating; setting a voltage across a second winding of the motor for a first period; receiving first voltage samples associated with the first winding in the first period; setting the voltage across the second winding of the motor to a second period, in which the first period and the second period are periods of one or more pulse width modulation cycles, in which a polarity of the voltage across the second winding in the second period is opposite to a polarity of the voltage across the second winding in the first period; receiving second voltage samples associated with the first winding in the second period; and determining a position of the rotor based on the first and second voltage samples.

2. 发明授权

EP3185411B1 METHOD AND APPARATUS FOR MOTOR LOCK OR STALL DETECTION 有权
公开(公告)号：EP3185411B1
公开(公告)日：2020-08-05
申请号：EP16190311.7
申请日：2016-09-23
申请人： NXP USA, Inc.
发明人： LEPKA, Jaroslav , PROKOP, Libor
IPC分类号： H02P29/024 , H02P6/12 , H02P6/18 , H02P21/13 , H02P21/18

3. 发明公开

EP3185411A1 METHOD AND APPARATUS FOR MOTOR LOCK OR STALL DETECTION 有权
标题翻译：用于马达锁定或失速检测的方法和设备
公开(公告)号：EP3185411A1
公开(公告)日：2017-06-28
申请号：EP16190311.7
申请日：2016-09-23
申请人： NXP USA, Inc.
发明人： LEPKA, Jaroslav , PROKOP, Libor
IPC分类号： H02P29/024 , H02P6/18 , H02P6/12
摘要： A method and apparatus are provided for detecting a rotor lock condition in a sensorless permanent magnet synchronous motor. A BEMF observer determines an estimated rotor speed ω̂ and a first BEMF voltage value in an estimated rotor-related γ,δ reference frame. In addition, a second estimated BEMF voltage value is calculated in a rotor-related d,q reference frame based on at least a first motor constant and an estimated rotor speed ω̂ . After generating a BEMF error filter value from the first and second estimated BEMF voltage values and calculating a BEMF error threshold value as a function of the estimated rotor speed ω̂ that is subject to a minimum threshold BEMF value, a rotor lock condition is detected based on at least the BEMF error filter value and the BEMF error threshold value.
摘要翻译：提供了一种用于检测无传感器永磁同步电动机中的转子锁定状态的方法和设备。 BEMF观测器确定估计的转子速度ω和估计的转子相关的γ，δ参考系中的第一BEMF电压值。此外，基于至少第一电动机常数和估计的转子速度ω，在与转子相关的d，q参考系中计算第二估计的BEMF电压值。在根据第一和第二估计的BEMF电压值生成BEMF误差滤波器值并且根据经受最小阈值BEMF值的估计的转子速度ω计算BEMF误差阈值之后，基于至少BEMF误差滤波器值和BEMF误差阈值。

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