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Torque coupling compensation control method based on segmented motor

A compensation control and motor control technology, applied in multiple motor speed/torque control, motor generator control, AC motor control and other directions, can solve problems such as poor torque synchronization, improve smooth running ability and tracking accuracy, reduce The effect of motor output torque mismatch

Pending Publication Date: 2022-05-13
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0004] In order to solve the problem of poor output torque synchronization between the various segmented motors of the existing permanent magnet synchronous segmented motors, the present invention provides a torque coupling compensation control method based on segmented motors

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  • Torque coupling compensation control method based on segmented motor
  • Torque coupling compensation control method based on segmented motor
  • Torque coupling compensation control method based on segmented motor

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Embodiment Construction

[0026] The torque coupling compensation control method based on the segmented motor of the present invention will be further described in detail below in conjunction with the drawings and embodiments.

[0027] The permanent magnet synchronous segmented motors will jointly drive an inertial load (that is, a large-aperture telescope) to rotate. The permanent magnet synchronous segmental motor includes n-segment segmental motors, n is an integer greater than 2, and the stators of the n-segment segmental motors are arranged sequentially along a circle, that is, the n-segment segmental motors form a circular structure, etc. They form a ring-shaped integral stator, which has the same permanent magnet rotor, and the rotor drives the inertial load to move.

[0028] The closed-loop structure of the existing segmented motor motion control system is as follows: figure 1 As shown, the entire inertial motion system (the inertial motion system includes permanent magnet synchronous segmente...

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Abstract

The invention discloses a torque coupling compensation control method based on a segmented motor, relates to the technical field of photoelectric precise tracking control, solves the problem of poor synchronism of torque output by each segmented motor of a permanent magnet synchronous segmented motor, and comprises the following steps: comparing iqx to obtain a feedback error ex; comparing the current iqx of the xth segment of segmented motor with the current of the segment of segmented motor adjacent to the xth segment of segmented motor to obtain a synchronization error exy; the xth adaptive coupling controller carries out operation according to ex and exy to obtain a current correction amount iqcx, and the xth driver carries out operation according to a current reference instruction of the segmented motor, iqx and iqcx to obtain xth segment segmented motor control information II. According to the method, the problem of current response asynchronization caused by different parameter differences, driver differences or working condition differences of the segmented motor models can be inhibited, the phenomenon that the output torque of the motor is not matched is reduced, and the stable operation capability and tracking precision of the telescope are improved.

Description

technical field [0001] The invention relates to the technical field of photoelectric precision tracking control, in particular to a torque coupling compensation control method based on segmented motors. Background technique [0002] As the diameter of astronomical telescopes continues to grow, the volume and inertia of their loads also continue to increase. The traditional drive method using worm gears can no longer meet its application requirements. Therefore, the drive mode of large-aperture astronomical telescopes is gradually developing towards direct drive and brushless. Different from traditional self-contained motors, permanent magnet synchronous motors can be made into linear motors, which can be segmented to form a ring-shaped splicing motor. Multi-segmented motors form a permanent magnet synchronous segmented motor, which can achieve more For the drive of telescopes with large volume and inertia, permanent magnet synchronous segmented motors will become the first ...

Claims

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Application Information

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IPC IPC(8): H02P21/00H02P21/22H02P25/022H02P6/04H02P5/52
CPCH02P25/022H02P6/04H02P21/0003H02P21/22H02P5/52
Inventor 邵蒙邓永停李洪文
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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