Crossed coupling synchronous control system and method of multiple motors

A cross-coupling, synchronous control technology, applied in the direction of speed regulation of multiple motors, to achieve the effect of good robustness and reduced deviation

Active Publication Date: 2012-10-03
SUZHOU INOVANCE TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a multi-motor cross-coupling synchronous control system and method for the above-mentioned synchronous control scheme that cannot fundamentally solve the problem of synchronous control of AC servo motors

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  • Crossed coupling synchronous control system and method of multiple motors
  • Crossed coupling synchronous control system and method of multiple motors
  • Crossed coupling synchronous control system and method of multiple motors

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] refer to figure 1 , the drive system is composed of a servo control unit 10 and a motor 14, wherein the motor 14 drives the screw to act on the workpiece (object) to complete the corresponding operation. The servo control unit 10 acquires a position command from a host control device or a host control module, and performs position closed-loop processing, speed closed-loop processing, and current closed-loop processing. Specifically, the position control subunit 11 subtracts the feedback value from the position command to obtain the position deviation, multiplies the position deviation by th...

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Abstract

The invention provides a crossed coupling synchronous control system of multiple motors, which is used for realizing synchronous control of two servo control units. The two servo control units are respectively used for controlling different servo motors to rotate, and each servo control unit comprises a position control subunit, a speed control subunit and a current control subunit; the crossed coupling synchronous control system comprises a stress detection unit and a stress crossed-coupling control unit; the stress detection unit is used for detecting the stresses at two rotating shafts on a gantry crossbeam; and the stress crossed-coupling control unit is used for carrying out current compensation on the current control subunits of the two servo control units according to the two stressed measured by the stress detection unit. The invention also provides a corresponding method. According to the crossed coupling synchronous control system and method provided by the invention, the torque adjustment is carried by stress detection of the gantry crossbeam, and the deflection of absolute positions between shafts in the synchronous control can be reduced.

Description

technical field [0001] The invention relates to the field of motor control, in particular to a multi-motor cross-coupling synchronous control system. Background technique [0002] Synchronous control methods for multi-motors are generally divided into non-coupling and coupling methods. Currently, the commonly used non-coupling synchronous control methods include master-reference synchronization and master-slave synchronization. [0003] In the uncoupled master reference synchronous control mode, each motor drive unit shares a given signal, that is, the master reference signal. The master command reference signal is directly applied to the motor of each unit, so that each unit can obtain a consistent input signal. The input signal of each unit is only affected by the reference signal, so the disturbance of any unit will not affect the working state of other units. There are two situations: one is when the following performance of each unit is similar and the motor of any un...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P5/50H02P5/48
Inventor 高峰宇匡两传
Owner SUZHOU INOVANCE TECH CO LTD
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