公开(公告)号：US20170141712A1

公开(公告)日：2017-05-18

申请号：US15421576

申请日：2017-02-01

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Semyon Royak ,  Jingya Dai ,  Thomas A. Nondahl ,  Jingbo Liu ,  Robert J. Breitzmann ,  Peter B. Schmidt

IPC: H02P21/14 ,  H02P27/06 ,  H02P27/04

CPC classification number: H02P27/06 ,  H02M1/126 ,  H02M7/53873 ,  H02M2001/0009 ,  H02P6/08 ,  H02P21/13 ,  H02P21/18 ,  H02P21/22

Abstract: Disclosed examples include power conversion systems and methods to operate an inverter to drive a motor load through an intervening output filter, a transformer and a cable, including a current regulator to compute a command value according to a current reference value and a motor current feedback value, a cross-coupled feedforward component to compensate the command value by an estimated cross-coupled voltage value to compute a control output value, a cross-coupled object component to compute the motor current feedback value according to a voltage value using a plant transfer function representing the output filter, the transformer, the cable and the motor load, and a controller to provide the inverter switching control signals to control the inverter according to the control output value.

公开(公告)号：US09595896B1

公开(公告)日：2017-03-14

申请号：US14971221

申请日：2015-12-16

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Semyon Royak ,  Thomas Nondahl ,  Jingya Dai ,  Thomas M. Cahill ,  Robert J. Breitzmann ,  Peter B. Schmidt ,  Jingbo Liu ,  Ehsan Al-Nabi

IPC: H02P6/08 ,  G05B15/02

CPC classification number: H02P6/08 ,  H02P6/18 ,  H02P23/14

Abstract: Methods and systems are presented for closed loop motor speed and torque control without a sensor at the motor, in which configuration parameters are received from a user interface to define operating characteristics of a filter, a transformer, a cable, and the motor coupled with the output of a motor drive, and an object model of the motor drive is configured according to the filter, transformer, cable and motor configuration parameters to facilitate sensorless closed loop motor speed and/or torque control.

Abstract translation: 提出了用于闭环电动机速度和转矩控制的方法和系统，而没有在电动机处的传感器，其中从用户界面接收配置参数以定义过滤器，变压器，电缆和与电动机耦合的电动机的操作特性 电机驱动器的输出和电机驱动器的对象模型根据滤波器，变压器，电缆和电机配置参数进行配置，以便于无传感器闭环电机速度和/或转矩控制。

公开(公告)号：US20180138849A1

公开(公告)日：2018-05-17

申请号：US15351989

申请日：2016-11-15

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Semyon Royak ,  Robert J. Breitzmann ,  Jingbo Liu ,  Thomas A. Nondahl ,  Jingya Dai ,  Peter B. Schmidt

IPC: H02P23/26

CPC classification number: H02P23/26 ,  H02M1/126 ,  H02M1/4216 ,  H02M7/53871 ,  H02M7/5395 ,  H02M2001/0009 ,  H02P23/14

Abstract: Disclosed examples include power conversion systems, methods and computer readable mediums to operate an inverter to drive a motor load through an output filter, in which a control output value is computed according to a current reference value and a current feedback value using a proportional-integral (PI) current regulator, the control output value is filtered using a lag compensator filter to compute an inverter output command value, and the inverter is controlled according to the inverter output command value.

公开(公告)号：US09374028B2

公开(公告)日：2016-06-21

申请号：US14565781

申请日：2014-12-10

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Thomas Nondahl ,  Jingbo Liu ,  Peter Schmidt ,  Semyon Royak ,  Jingya Dai ,  Ehsan Al-Nabi

IPC: H02P6/04 ,  H02P6/18 ,  H02P6/20

CPC classification number: H02P6/181 ,  H02P6/182 ,  H02P6/21

Abstract: Motor drive control apparatus and methods are presented for sensorless control of a driven motor using open loop current regulated control during low-speed operation and an EMF-based position observer for position estimation during higher speed operation, with zero feedback speed during low-speed open-loop operation and feedback speed estimated by the EMF-based observer during high-speed operation and with velocity mode control over the full speed range and mode control hysteresis for smooth transitions between open loop and EMF-based observer control.

Abstract translation: 电动机驱动控制装置和方法用于在低速运行期间使用开环电流调节控制的驱动电机进行无传感器控制，以及用于在高速运行期间用于位置估计的基于EMF的位置观察器，在低速打开期间具有零反馈速度 在高速运行期间由基于EMF的观测器估计的循环运行和反馈速度以及在全速范围和速度范围内的速度模式控制以及开环和基于EMF的观测器控制之间的平滑过渡的模式控制滞后。

公开(公告)号：US20160173012A1

公开(公告)日：2016-06-16

申请号：US15053135

申请日：2016-02-25

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Thomas A. Nondahl ,  Semyon Royak ,  Jingbo Liu ,  Jingya Dai ,  Ehsan Al-Nabi ,  Peter B. Schmidt

IPC: H02P6/08 ,  H02P27/06

CPC classification number: H02P27/06 ,  H02M1/126 ,  H02M7/53873 ,  H02M2001/0009 ,  H02M2007/53876 ,  H02P6/08

Abstract: Disclosed examples include methods, computer readable mediums and motor drives power conversion systems for sensorless speed control of a motor driven by an inverter through an intervening filter, in which a controller computes motor current feedback values for a current control cycle according to inverter output current values, capacitance values representing capacitances of filter capacitors of the filter, filter output voltage values representing output voltages of the filter, and a speed feedback or reference value of a previous control cycle. The controller computes a speed feedback value for the current control cycle according to the motor current feedback values and the filter output voltage values, and controls the inverter to regulate the rotational speed of the motor at least partially according to the speed feedback or reference value using vector control.

Abstract translation: 公开的示例包括用于通过中间滤波器由逆变器驱动的电动机的无速度传感器速度控制的方法，计算机可读介质和电动机驱动功率转换系统，其中控制器根据逆变器输出电流值计算当前控制周期的电动机电流反馈值 表示滤波器的滤波电容器的电容的电容值，表示滤波器的输出电压的滤波器输出电压值，以及先前控制周期的速度反馈或参考值。 控制器根据电机电流反馈值和滤波器输出电压值计算当前控制周期的速度反馈值，并控制变频器至少部分根据速度反馈或参考值来调节电机的转速，使用 矢量控制。