公开(公告)号：US11658598B2

公开(公告)日：2023-05-23

申请号：US17782923

申请日：2020-12-01

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Renya Kawakami ,  Kenta Murakami ,  Toru Tazawa ,  Yusuke Nonogaki

IPC分类号： H02P25/064

CPC分类号： H02P25/064

摘要： A linear motor system includes: a stator including first to tenth coils; a mover including a permanent magnet; a switcher that switches one or more power supply target coils; and a control device that supplies power to the one or more power supply target coils by using a deviation integral value obtained by integrating a speed deviation that is a difference between an instructed speed of the mover and an actual speed of the mover. The control device includes: a compensator that calculates a post-division deviation integral value by dividing a post-summation deviation integral value, which is a value obtained by summing the deviation integral value used to supply power to each of the one or more power supply target coils immediately before the switching, by the total number of the one or more power supply target coils immediately after the switching; and a current control unit.

公开(公告)号：US12132433B2

公开(公告)日：2024-10-29

申请号：US17996341

申请日：2021-02-25

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Kento Yoshino ,  Yusuke Nonogaki ,  Yusuke Imada

IPC分类号： H02P7/06 ,  B65H23/032 ,  H02P6/17 ,  H02P23/18

CPC分类号： H02P6/17 ,  B65H23/032 ,  H02P23/18 ,  B65H2553/80 ,  B65H2555/20

摘要： A motor driver drives a motor that controls a position of an object based on a command from a controller. The motor driver includes: a correction command output part that outputs a correction command for correcting a position of the motor based on a position of the object detected by a displacement sensor that detects the position of the object; and a position controller that outputs a drive signal for driving the motor based on the command from the controller and the position of the motor detected by an encoder that detects the position of the motor, or based on the correction command and the position of the motor detected by the encoder.

公开(公告)号：US11764717B2

公开(公告)日：2023-09-19

申请号：US17793868

申请日：2020-12-23

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Hayata Sakai ,  Toru Tazawa ,  Kenta Murakami ,  Yusuke Nonogaki ,  Renya Kawakami

IPC分类号： B65G35/06 ,  H02P25/064 ,  H02P6/28 ,  H02P6/00 ,  H02P6/16

CPC分类号： H02P25/064 ,  H02P6/006 ,  H02P6/16 ,  H02P6/28

摘要： A linear motor system includes: a stator including first to tenth coils; a mover including a permanent magnet; a switcher that switches one or more power supply target coils; and first to tenth amplifiers provided in one-to-one correspondence with first to tenth coils. One or more amplifiers that serve as new one or more power supply target amplifiers immediately after the switching calculate Δθ (t0), which is a position deviation at time t=t0, based on Δθ (t0)=Δθ (t0−td)+A−B, where A is a difference between an instructed position at time t=t0 and an instructed position at time t=t0−td, and B is a difference between an actual position at time t=t0 and an actual position at time t=t0−td, and supply power to the power supply target coils by the position deviation Δθ (t0).