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Applied Research of Pluse Generator for Wasterwater Treatment

Author: ZhaoJinShan
Tutor: WangXingGui
School: Lanzhou University of Technology
Course: Power Electronics and Power Drives
Keywords: Pulse power Amplitude-frequency characteristics Streamer discharge Fuzzy PID Control Hardware and software design
CLC: X703.1
Type: Master's thesis
Year: 2011
Downloads: 23
Quote: 0
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Abstract


This paper analyzes the mechanism and characteristics of sewage treatment pulse power , and voltage amplitude and frequency characteristics of the reactor , the characteristics of the reactor where the pulse power circuit nonlinear reactor model uncertainty , fuzzy control theory and traditional ? PID ? controlled research, design fuzzy adaptive ? the PID ? controller . Improve the static and dynamic properties of the system , the controller is applied to the control of the output voltage pulse power , reached the reactor the streamer discharge work state requirements . According to the basic conditions of the streamer discharge , sewage treatment pulse power circuit , control method , software and hardware design study . Analysis of the AC and the DC pulse power supply structure , and the working principle of the pulse power supply ; the pulse power supply , a series circuit of the reactor and the composition of the current-limiting inductor calculation, analysis of the reactor in the streamer discharge mode, the voltage amplitude and frequency relationship characteristics; streamer discharge is the ratio of time the AC cycle analysis shows that to improve the streamer discharge in terms of time , increasing the power supply frequency is more effective than increasing the AC power supply voltage amplitude . MATLAB simulation tool with interactive features and PIC16F877 as core hardware platform , the simulation and experiment . Software design simulation and experimental results show that the AC power to the main circuit output voltage adjustable frequency the SPWM wave , and adjustable DC power supply main circuit output duty cycle of the PWM waves ; achieve voltage AC power supply voltage of the DC supply voltage in the reactor superposition, to meet the streamer discharge of working conditions of the reactor . The hardware design circuit safe, reliable operation.

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CLC: > Environmental science, safety science > Processing and comprehensive utilization of waste > General issues > Wastewater treatment and utilization > Technology and methods
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