公开(公告)号：US20160373042A1

公开(公告)日：2016-12-22

申请号：US15250337

申请日：2016-08-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Eric James Thomas ,  David Patrick Magee

IPC: H02P21/18 ,  H02P25/08 ,  H02P21/00 ,  H02P21/06 ,  H02P21/24 ,  H02P25/03 ,  H02P27/08

CPC classification number: H02P21/18 ,  H02P21/0025 ,  H02P21/06 ,  H02P21/24 ,  H02P25/03 ,  H02P25/08 ,  H02P27/08

Abstract: A method of normalizing phase measurements for a motor using a normalizing phase measurements (NPM) algorithm that a processor implements to cause a motor controller coupled to stator terminals of the phases to execute forcing a set of input current or voltage vectors (set of input vectors) including repeating the forcing after rotating the rotor through a full mechanical cycle to generate resulting current or voltage samples (resulting samples) of non-normalized phase A and phase B waveforms. The magnitude of the input vectors are sufficiently small to not move the rotor. A maximum value (x_max) and a minimum value (x_min) are determined for each of the non-normalized phase A and phase B waveforms. An offset value and normalization scale factor (NSF) are determined from the max and min values. The offsets and NSFs are applied to the non-normalized phase waveforms to generate normalized phase A and phase B waveforms.

Abstract translation: 一种使用归一化相位测量（NPM）算法对电动机的相位测量进行归一化的方法，该规范化相位测量（NPM）算法用于使耦合到相位的定子端子的电动机控制器执行强制一组输入电流或电压矢量 ）包括在旋转转子完全机械循环之后重复强制以产生非标准化相位A和相位B波形的所得电流或电压样本（所得样本）。 输入矢量的大小足够小，不能使转子移动。 为非标准化相位A和B相波形确定最大值（x_max）和最小值（x_min）。 从最大值和最小值确定偏移值和归一化比例因子（NSF）。 偏移和NSF被应用于非标准化相位波形以产生归一化相位A和相位B波形。

公开(公告)号：US20160373041A1

公开(公告)日：2016-12-22

申请号：US15250306

申请日：2016-08-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Eric James Thomas ,  David Patrick Magee

IPC: H02P21/18 ,  H02P25/03 ,  H02P27/08

CPC classification number: H02P21/18 ,  H02P21/24 ,  H02P25/03 ,  H02P27/08

Abstract: A method of determining angular position (θ) of a rotor of an N-phase permanent magnet motor (PMM). A processor having an associated stored angular position determination (APD) algorithm is programmed to implement the algorithm to cause an associated motor controller to execute steps including forcing one vector at a time a phase vector set of current or voltage vectors to stator terminals of windings for the N-phases a positive and negative magnitude vector, wherein the vector magnitude is sufficiently small to not move the rotor, and a time duration for the forcing current or voltage vectors is essentially constant. The resulting stator current or voltage levels are measured for each current or voltage vector. An N-dimension current vector or voltage vector is generated from superposition of the resulting stator current levels or resulting stator voltage levels. The N-dimension current vector or voltage vector is used to determine angular position.

Abstract translation: 确定N相永磁电动机（PMM）的转子的角位置（θ）的方法。 具有相关联的存储的角位置确定（APD）算法的处理器被编程为实现该算法以使相关联的电动机控制器执行步骤，包括一次将一个向量强制为电流或电压矢量的相位矢量组合到绕组的定子端子， N相是正和负幅度矢量，其中矢量幅度足够小以至不移动转子，并且强制电流或电压矢量的持续时间基本上是恒定的。 对于每个电流或电压矢量测量得到的定子电流或电压电平。 通过产生的定子电流电平或所得到的定子电压电平的叠加产生N维电流矢量或电压矢量。 使用N维电流矢量或电压矢量来确定角位置。

公开(公告)号：US09431945B2

公开(公告)日：2016-08-30

申请号：US14721823

申请日：2015-05-26

Applicant: Texas Instruments Incorporated

Inventor： Eric James Thomas ,  David Patrick Magee

IPC: H02P21/00 ,  H02P21/06

CPC classification number: H02P21/18 ,  H02P21/0025 ,  H02P21/06 ,  H02P21/24 ,  H02P25/03 ,  H02P25/08 ,  H02P27/08

Abstract: A method of normalizing phase measurements for a motor using a normalizing phase measurements (NPM) algorithm that a processor implements to cause a motor controller coupled to stator terminals of the phases to execute forcing a set of input current or voltage vectors (set of input vectors) including repeating the forcing after rotating the rotor through a full mechanical cycle to generate resulting current or voltage samples (resulting samples) of non-normalized phase A and phase B waveforms. The magnitude of the input vectors are sufficiently small to not move the rotor. A maximum value (x_max) and a minimum value (x_min) are determined for each of the non-normalized phase A and phase B waveforms. An offset value and normalization scale factor (NSF) are determined from the max and min values. The offsets and NSFs are applied to the non-normalized phase waveforms to generate normalized phase A and phase B waveforms.

Abstract translation: 一种使用归一化相位测量（NPM）算法对电动机的相位测量进行归一化的方法，该规范化相位测量（NPM）算法用于使耦合到相位的定子端子的电动机控制器执行强制一组输入电流或电压矢量 ）包括在旋转转子完全机械循环之后重复强制以产生非标准化相位A和相位B波形的所得电流或电压样本（所得样本）。 输入矢量的大小足够小，不能使转子移动。 为非标准化相位A和B相波形确定最大值（x_max）和最小值（x_min）。 从最大值和最小值确定偏移值和归一化比例因子（NSF）。 偏移和NSF被应用于非标准化相位波形以产生归一化相位A和相位B波形。

公开(公告)号：US20150084575A1

公开(公告)日：2015-03-26

申请号：US14337576

申请日：2014-07-22

Applicant: Texas Instruments Incorporated

Inventor： David Patrick Magee

IPC: H02P21/00

CPC classification number: H02P6/183 ,  H02P6/181 ,  H02P21/04 ,  H02P21/18

Abstract: A motor controller architecture and method of operating the same. The motor controller includes a function for estimating the low speed operation of the motor, for example by evaluating the response to a periodic excitation signal injected into the control loop of the controller architecture. A periodic excitation signal in the form of a square wave allows for analysis of the response of the motor without requiring demodulation, which allows the frequency of the excitation signal to be above the audible range. Control logic for controlling the motor at transitional speeds between low speed control and high speed (back emf) control is provided in some embodiments.

Abstract translation: 一种电动机控制器结构及其运行方法。 电动机控制器包括用于估计电动机的低速运行的功能，例如通过评估对控制器架构的控制回路中注入的周期性激励信号的响应。 以方波形式的周期性激励信号允许分析电动机的响应而不需要解调，这允许激励信号的频率高于可听范围。 在一些实施例中提供了用于在低速控制和高速（反电动势）控制之间以过渡速度控制电动机的控制逻辑。