公开(公告)号：US11754467B2

公开(公告)日：2023-09-12

申请号：US17831773

申请日：2022-06-03

Applicant: Harbin Institute of Technology

Inventor： Jiwei Cao ,  Chengming Zhang ,  Liyi Li ,  Jiaxi Liu

IPC: G01M13/027

CPC classification number: G01M13/027

Abstract: A three-dimensional force loading device for a motor spindle is provided, and relates to the field of motor spindle testing. The device including a bottom plate; a torque loading assembly configured for testing torque performance of the motor spindle, and the torque loading assembly is in transmission connection with the motor spindle; a sleeve shell rotatably sleeved on the motor spindle, the sleeve shell is fixed along an axis direction of the motor spindle; a radial force loading assembly configured for testing radial force performance of the motor spindle, and the radial force loading assembly is fixedly connected with the sleeve shell; an axial force loading assembly configured for testing axial force performance of the motor spindle; and a intermediate force transmission mechanism connected with the sleeve shell and the axial force loading assembly.

公开(公告)号：US10186987B2

公开(公告)日：2019-01-22

申请号：US15023402

申请日：2014-09-09

Applicant: Harbin Institute Of Technology

Inventor： Liyi Li ,  Donghua Pan ,  Qingbo Guo ,  Junjie Hong

IPC: H02J7/34 ,  H02J1/10 ,  H02J3/38 ,  H02M7/5387 ,  H02M1/14 ,  H02M1/00 ,  H02M3/155 ,  H02P7/03

Abstract: An electromagnetic drive control system comprising an H-shaped full bridge driving circuit connected to a controlled electromagnetic unit, including a first field effect transistor (FET) and a fourth FET connected in series constituting the left arm of the H-shaped full-bridge driving circuit, and a second FET and a third FET connected in series constituting the right arm of the H-shaped full-bridge driving circuit; PWM control unit is used to provide control signal to the FETs of the left and right bridge arms; it is characterized in that: the left arm comprises a first DC voltage source connected in series to the drain of the first FET, and the right arm includes a second DC voltage source connected in series to the drain of the second FET so as to form a dual power circuit; in this configuration, the first DC voltage source and the second DC voltage source are configured appropriately to greatly weaken the output current ripple of the electromagnetic drive control system and allow the system to realize super-high precision control of the electromagnetic drive control system under lower switching frequency, as a result, it can improve the stability of the system, reduce the loss of the system, and significantly decrease the cost of the drive controller.

公开(公告)号：US20160211783A1

公开(公告)日：2016-07-21

申请号：US15023403

申请日：2014-09-09

Applicant: HARBIN INSTITUTE OF TECHNOLOGY

Inventor： Liyi Li ,  Donghua Pan ,  Qingbo Guo ,  Mingyl Wang ,  Siya Xiong

IPC: H02P7/025

CPC classification number: H02P7/025 ,  H01F7/066 ,  H01F7/128 ,  H02P7/04 ,  H02P25/034

Abstract: A thrust compensation system of a dual-winding voice coil motor, which is used for driving the voice coil motor having secondary windings arranged between each pair of main windings, wherein the main windings are the main working windings of the voice coil motor and used for providing the output electromagnetic force required by the driving system of the voice coil motor; the secondary windings are compensation windings and used for providing the thrust ripple opposite to the main windings and compensating the thrust ripple of the main windings, so that the resultant force of the output thrust of the main windings and the secondary windings of the voice coil motor is constant. The scheme provided by this invention not only greatly reduces the thrust ripple of the servo system of the voice coil motor, but also realizes the ultra-high precision control of the servo drive system of the voice coil motor when the system is under low switching frequency, improves the stability of the system, reduces the system loss, and greatly reduces the cost of the drive controller.

Abstract translation: 一种双绕组音圈电动机的推力补偿系统，其用于驱动具有布置在每对主绕组之间的次级绕组的音圈电动机，其中主绕组是音圈电机的主工作绕组，并用于 提供音圈马达驱动系统所需的输出电磁力; 次级绕组是补偿绕组，用于提供与主绕组相反的推力波动并补偿主绕组的推力波动，使得主绕组和音圈电机的次级绕组的输出推力的合力 是恒定的 本发明提供的方案不仅大大降低了音圈电机伺服系统的推力波动，而且当系统处于低开关频率时，实现了音圈电机伺服驱动系统的超高精度控制 提高系统的稳定性，减少系统损耗，大大降低驱动控制器的成本。

公开(公告)号：US20160211782A1

公开(公告)日：2016-07-21

申请号：US15023401

申请日：2014-09-09

Applicant: HARBIN INSTITUTE OF TECHNOLOGY

Inventor： Liyi Li ,  Donghua Pan ,  Qingbo Guo ,  Chengming Zhang ,  Jiwei Cao

IPC: H02P7/025 ,  H02K41/035

CPC classification number: H02P7/025 ,  H02K41/0356 ,  H02K2213/03 ,  H02P25/034

Abstract: A thrust compensation system of a dual-winding voice coil motor, which is used for driving the voice coil motor having main windings (100) and secondary windings (200), wherein the secondary windings (200) of the voice coil motor are between each pair of the main windings (100). The system includes a switch drive circuit of the main windings (800) which is powered by a first controlled voltage source to drive the main windings (100) adopted as the main working windings of the voice coil motor and used for providing the output electromagnetic force required by the driving system of the voice coil motor in work; a switch drive circuit of the secondary windings (900) which is powered by a second voltage source to drive the secondary windings (200) adopted as compensation windings, and used for providing the thrust ripple opposite to the main windings (100) so as to compensate the thrust ripple of the main windings (100) and keep the resultant force of the output of the main windings (100) and the secondary windings (200) of the voice coil motor in constant; wherein the voltages Udc1 and Udc2 of the first and second controlled voltage sources of the main windings (100) and the second windings (200) are configured as meeting a certain relationship.

Abstract translation: 一种用于驱动具有主绕组（100）和次级绕组（200）的音圈电动机的双绕组音圈电动机的推力补偿系统，其中音圈电机的次级绕组（200）在每个 一对主绕组（100）。 该系统包括主绕组（800）的开关驱动电路，该开关驱动电路由第一受控电压源驱动，以驱动被用作音圈电机的主工作绕组的主绕组（100），并用于提供输出电磁力 音圈电机的驱动系统需要工作; 次级绕组（900）的开关驱动电路由第二电压源驱动以驱动作为补偿绕组的次级绕组（200），并用于提供与主绕组（100）相对的推力波动，从而 补偿主绕组（100）的推力波动并保持音圈马达的主绕组（100）和次级绕组（200）的输出的合力恒定; 其中主绕组（100）和第二绕组（200）的第一和第二受控电压源的电压Udc1和Udc2被配置为满足一定关系。