粒子群优化BP-PID的矿井提升机调速系统

doi:10.16180/j.cnki.issn1007-7820.2021.01.008

Abstract

Abstract:

The control parameters of traditional PID controller applied in the mine hoist frequency conversion speed control system is fixed and difficult to be set, which aeaks leads to large speed overshoot and ripples of the electromagnetic torque and rotor flux linkage. In order to improve the performance of the system, an improved particle swarm optimization BP neural network PID controller algorithm of hoist rotor frequency conversion speed regulation system is proposed in the present study. The application of particle swarm algorithm which has fast convergence speed and global optimal characteristics in neural network can overcome the disadvantages of slow convergence speed and easy to fall into local optimum of BP neural network. In addition, the neural network convergence coefficient is designed to further accelerate the convergence speed. The simulation results show that the neural network control effect of particle swarm optimization is better than the neural network, and the effect is obviously better than the traditional PID controller. Compared with the neural network PID controller, the steady speed adjustment speed of the mine hoist speed regulation system of particle swarm optimization is obviously improved. Compared with the traditional PID controller, the ripple of the electromagnetic torque and rotor flux of the motor are significantly reduced, which has strong stability and robustness.

Key words: mine hoist, particle swarm, neural network, convergence, pulsation, rotor flux, electromagnetic torque

CLC Number:

TP183

ZHAO Shiyan, XIE Zidian, DING Kangkang, CUI Hanqing. Particle Swarm Optimization BP-PID of Rotor Variable Frequency Speed in Mine Hoisting System[J].Electronic Science and Technology, 2021, 34(1): 43-49.

Figures/Tables 9

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参数	传统PID	BP-PID	PSO-BP-PID
转速调节时间/s	3.6	4.9	2.5
转速超调/r·min^-1	20	0	0
转矩脉动/N·m	450	250	250
转子磁链脉动/Wb	0.10	0.03	0.03

Particle Swarm Optimization BP-PID of Rotor Variable Frequency Speed in Mine Hoisting System

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