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Multi-motor proportional synchronization control algorithm based on improved adjacent cross coupling

A cross-coupling and synchronous control technology, applied in the direction of speed regulation of multiple motors, complex mathematical operations, etc., can solve the problems of complex and difficult algorithm design, and achieve the goal of overcoming time-varying parameters, eliminating steady-state errors, and achieving high synchronous control accuracy. Effect

Active Publication Date: 2012-04-18
NANJING UNIV OF SCI & TECH
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Problems solved by technology

It is suitable for multi-motor synchronous control with a proportional coefficient of 1. When multi-motors need to be synchronized at a certain ratio, the design of this algorithm is relatively complicated, and it is difficult to apply

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  • Multi-motor proportional synchronization control algorithm based on improved adjacent cross coupling
  • Multi-motor proportional synchronization control algorithm based on improved adjacent cross coupling
  • Multi-motor proportional synchronization control algorithm based on improved adjacent cross coupling

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Embodiment Construction

[0015] The present invention is a multi-motor proportional synchronous control algorithm based on improved adjacent cross-coupling. On the basis of improving the adjacent cross-coupling control structure, a fuzzy PID controller is added. The steps are as follows:

[0016] Step 1: Define the parameters in the adjacent cross-coupling control structure. The basic idea of ​​the adjacent cross-coupling control structure is that when controlling each motor, only the states of itself and two adjacent motors are considered, which will greatly Simplify the control structure; on this basis, improve the adjacent cross-coupling control structure, divide the multi-motor synchronous system into n synchronous subsystems, define the control parameters of each synchronous subsystem in the adjacent cross-coupling control structure, and increase After the proportional link is established, the control parameters of each synchronization subsystem are redefined, and the relational equations of the r...

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Abstract

The invention discloses a multi-motor proportional synchronization control algorithm based on improved adjacent cross coupling. By the algorithm, an adjacent cross-coupling control structure is improved, so that each motor in a multi-motor synchronization system can be synchronously run at proportional rotating speed. Simultaneously, for the characteristics of time varying, nonlinearity and the like of the motor, fuzzy proportion integration differentiation (PID) controllers are designed, and an improved adjacent cross-coupling multi-motor proportional synchronization fuzzy PID control algorithm is provided. Simulation comparison between the control algorithm and the conventional PID algorithm proves that the control algorithm has high convergence speed, high stability, high dynamic performance and practical value and capability of well realizing the proportional synchronous running of a plurality of motors.

Description

technical field [0001] The invention belongs to the multi-motor synchronous control technology, in particular to a multi-motor proportional synchronous control based on an intelligent control algorithm. Background technique [0002] In textile, papermaking, film winding and other systems, the problem of multi-motor synchronous control exists widely. The common multi-motor synchronization relationship is ω1=ω2=...=ωn, that is, the speed synchronization proportional coefficient of each motor is 1, which is the simplest synchronization relationship. However, in actual production such as film stretching and winding, in order to ensure that the film runs at a certain tension, the speed between the motors needs to increase in a certain proportion, that is, ω1:ω2:…:ωn = μ1:μ2:…:μn. The quality of multi-motor synchronous control directly affects the reliability and control accuracy of the system. [0003] The traditional synchronous control structure mainly includes parallel contr...

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Application Information

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IPC IPC(8): H02P5/46G06F17/10
Inventor 孙宇曹春平胥小勇丁武学武凯
Owner NANJING UNIV OF SCI & TECH
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