公开(公告)号：US12123900B2

公开(公告)日：2024-10-22

申请号：US17443998

申请日：2021-07-29

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Kentaro Inomata ,  Noor Aamir Baloch ,  Tokuma Nakamichi ,  Hengbin Rui

IPC: G01R21/06 ,  G01K7/22 ,  G01K7/42 ,  G01K13/00 ,  G01R21/14 ,  H02P27/06 ,  H02P27/08 ,  H02P29/68 ,  G05F3/02 ,  H02M1/00 ,  H02M1/32 ,  H02M5/293 ,  H02M5/458 ,  H02M7/00 ,  H02M7/5387 ,  H02P21/22

CPC classification number: G01R21/14 ,  G01K7/22 ,  G01K7/427 ,  G01K13/00 ,  G01R21/06 ,  H02P27/06 ,  H02P27/08 ,  H02P29/68 ,  G05F3/02 ,  H02M1/00 ,  H02M1/327 ,  H02M5/293 ,  H02M5/458 ,  H02M7/003 ,  H02M7/53871 ,  H02P21/22

Abstract: A power conversion device includes a power conversion circuit including a temperature sensor configured to detect a temperature at a sensor position and a switch configured to switch a connection on and off at a switch position separated from the sensor position; a loss calculation processing circuitry configured to calculate a power loss in the switch; a loss correction processing circuitry configured to correct a calculation result of the power loss on the basis of a detection result of the temperature at the sensor position; a temperature correction processing circuitry configured to correct the detection result of the temperature on the basis of the calculation result of the power loss; and a temperature estimation processing circuitry configured to estimate a temperature at the switch position on the basis of a corrected calculation result of the power loss and a corrected detection result of the temperature.

公开(公告)号：US09195223B2

公开(公告)日：2015-11-24

申请号：US14301286

申请日：2014-06-10

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Noor Aamir Baloch ,  Kozo Ide ,  Shinya Morimoto

IPC: G05B13/00 ,  G05B13/04 ,  H02P21/13 ,  H02P21/14 ,  H02P23/12

CPC classification number: G05B13/04 ,  G05B13/042 ,  H02P21/13 ,  H02P21/18 ,  H02P23/12

Abstract: A motor controller includes a position speed estimation section and a control section. The position speed estimation section outputs a motor estimated position and a motor estimated speed based on a position estimated error, which is a difference between a motor position of a motor and the motor estimated position. An observer modifier outputs an observer modification value based on the position estimated error. A nonlinear compensator outputs a compensation torque based on the position estimated error. An operator outputs an operation value based on the observer modification value and the compensation torque. A motor model outputs the motor estimated position and the motor estimated speed based on the operation value. The control section outputs a torque command based on the motor estimated position, the motor estimated speed, and a position command to control the motor.

Abstract translation: 电动机控制器包括位置速度估计部和控制部。 位置速度估计部分基于作为电动机的电动机位置与电动机估计位置之间的差的位置估计误差来输出电动机估计位置和电动机估计速度。 观察者修改器基于位置估计误差输出观察者修改值。 非线性补偿器基于位置估计误差输出补偿转矩。 操作者根据观察者修正值和补偿扭矩输出操作值。 电机型号根据运行值输出电机的估计位置和电机的推定速度。 控制部输出基于马达估计位置，马达估计速度和用于控制马达的位置指令的转矩指令。