The Intelligent Flow Control of LED Phosphor Powder Based on WPA-BPNN-PID Algorithm

2012 ◽

Vol 542-543 ◽

pp. 217-222

Author(s):

Ren Jiang Li ◽

Tie Wang ◽

Cheng Xun Sun

Keyword(s):

Control System ◽

Data Processing ◽

Flow Control ◽

Gas Flow ◽

Dust Sample ◽

Fuzzy Pid ◽

Pid Algorithm ◽

Accuracy Of Measurement ◽

Errors Analysis ◽

Sampling Flow

The Sampling flow will be decreased because the permeability weakness of filterable membrane after the dust sampler working for a period of time. It seriously affects the accuracy of measurement, so we should keep the dust sampler working under the constant gas flow. The stable, rapidness and accuracy constant sampling can be achieved based on the application of fuzzy-PID algorithm and the adoption of PWM technique. It has carried on design to the dust sampler control system from selecting the hardware and designing the software to data processing and errors analysis, and discussing the preferable performance of the dust sample control system.

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Applied of RBF Neural Network in Pressure and Flow Control System

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.713-715.909 ◽

2015 ◽

Vol 713-715 ◽

pp. 909-914

Author(s):

Fei Wang ◽

Xiao Hua Sun ◽

Zhi Jun Zou ◽

Hao Li

Keyword(s):

Neural Network ◽

Flow Control ◽

Control Method ◽

Rbf Neural Network ◽

Control Process ◽

Mathematic Model ◽

Pressure Control ◽

Water Pipe ◽

Object A ◽

Pid Algorithm

This paper is addressed water pipe pressure control method, chose a water pipe with bypass valve as an object. The paper made the pressure and flow control of the object a mathematic model. This paper design a PID control algorithm which base on RBF neural network to control the pressure and flow of the object, and simulate the control process both RBF neural network PID algorithm and PID algorithm. The last part of the paper contrasts the two simulation result.

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The PID Flow Control System Based on PLC

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.740.289 ◽

2015 ◽

Vol 740 ◽

pp. 289-292

Author(s):

Chun Yan Sun ◽

Bao Yi Fang

Keyword(s):

Control System ◽

Flow Control ◽

Volume Control ◽

Nonlinear Characteristics ◽

Precise Control ◽

Simulation And Optimization ◽

Pid Algorithm ◽

Flow Control System ◽

Temperature Liquid ◽

Electromagnetic Flow Meter

According to the time-varying and nonlinear characteristics of fluid, this paper puts forward a design scheme of real-time and accurate control of the liquid flow. The control system which taking the programmable logic controller (PLC) as the platform and using the PID control algorithm is composed with the touch screen, electromagnetic flow meter, temperature sensor, electric regulating valve system and so on. And the PID algorithm based on PLC design has carried on the analysis, simulation and optimization. The results show that PID algorithm is designed using this method with a strong and more precise control of the scheme. It is not only suitable for the flow control, changes in action after the equipment is also applicable to analog volume control temperature, liquid level, velocity, height etc.

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