局部通风机变频调速模糊控制器的开发

发布时间：2018-03-28 18:17

本文选题：局部通风机　切入点：瓦斯排放　出处：《太原理工大学》2015年硕士论文

【摘要】：近几年，随着煤炭工业向着高度智能化的方向发展，其安全事故发生的情况也有所改善，但瓦斯事故总数和瓦斯事故死亡人数的比例却没有下降。矿井掘进工作面是瓦斯事故的多发地点，而局部通风机是井下掘进生产中的主要设备，其工作的可靠性直接影响着掘进工作面生产的安全性，其工作的智能化程度取决于控制系统的先进性和自适应性。传统的掘进巷道通风系统智能化程度低，大多是手动调速；目前，部分矿井采用变频调速，但依旧是手动设置风机转速来控制风量，没有达到先进的自动化程度，通风系统能耗大，瓦斯集聚“一风吹”的问题没有得到彻底的解决，这种局面严重制约我国煤炭工业的发展。针对上述问题，本文对煤矿掘进工作面局部通风理论进行了深入的研究，提出了一种基于双模自调整模糊控制算法的局部通风机变频调速模糊控制系统的设计方法，对该方法进行了建模仿真，并组建了相应的实验平台，进行了实验调试，，实验结果表明，本文所设计的系统方案正确有效，实验平台可以按照控制规则正确运行。本文的具体研究内容如下：阐述了目前煤矿瓦斯处理方法及关键技术，介绍了国内外矿用局部通风机及其风量调节技术、局部通风机智能控制技术的研究现状，结合掘进巷道局部通风理论，分析了我国局部通风机智能调速系统的技术现状、装备布置及其控制系统的控制策略、功能，提出了本文所设计的局部通风机智能调速模糊控制器的各项技术指标，制定了详细的控制方式，确定了局部通风机变频调速模糊控制器的总体方案。依据工况确立了控制系统中模糊控制方法的隶属度函数和模糊控制规则，分析对比了几种模糊控制器的动态性能。根据系统所要实现的功能，在常规二维模糊控制算法的基础上采用自调整因子优化控制器性能，并通过MATLAB对该模型进行仿真。结果表明，采用自调整因子优化的控制器响应速度快。分析了三相异步电机的矢量控制方法，并对该种调制方式进行了MATLAB仿真，仿真结果表明该种调制方式可满足控制系统设计的指标，为硬件的编程做准备。在完成系统仿真的基础上，设计了控制系统主回路，确定了DSP（DigitalSignal Processor）型号，设计了硬件系统，包括控制电路电源模块、信号采样及调理电路模块、通讯模块、APS Inverte（rApplied Power System Inverter）故障锁存及缓冲电路模块等的结构，选取了电路参数，进行了数据测试。测试结果表明：各部分硬件电路结构合理，参数正确，稳定性好。在硬件平台的基础上，确定了局部通风机变频调速模糊控制器的软件整体方案，采用C语言编写了控制器的主程序及子程序，包括中断子程序、模糊控制子程序、变频子程序等功能模块子程序，并对各功能模块子程序进行了调试。调试结果表明，系统软件编写合理，功能灵活，可移植性强。通过软硬件的联合调试证明，局部通风机变频调速模糊控制系统的控制方案正确有效，实验平台可以按照控制规则正确运行。
[Abstract]:In recent years, with the coal industry to the height of the development of intelligent safety accidents is improved, but the total number of deaths of gas accidents and gas accidents have not declined. The proportion of excavation working face of coal mine gas accident is in multiple locations, while the local fan is the main equipment in the production of underground excavation, its reliability directly affects the safety production of working face, the intelligent degree depends on the advanced control system and adaptive roadway ventilation system. The intelligent degree of the traditional low, mostly manual speed control; at present, part of the mine is controlled by frequency conversion, but is still manually set the fan to control the speed of air flow, did not achieve the degree of automation and advanced ventilation system, energy consumption, gas gathering "cancellation" problem has not been completely resolved, the situation is serious It restricts the development of China's coal industry.
Aiming at the above problems, this paper on the heading face of coal mine local ventilation theory in-depth study, this paper presents a design method based on dual mode fuzzy control algorithm of variable frequency speed fuzzy control system of local fan, the method of modeling and simulation, and set up the corresponding experimental platform, the experiment is done. The experimental results show that the system designed in this paper is correct and effective, according to the experiment platform can control rules correctly. The specific contents of this paper are as follows:
The coal mine gas processing method and key technology, introduced the domestic and foreign localventilator and air conditioning technology, research status of intelligent local fan control technology, combined with the theory of local ventilation roadway, analyzed the technology status of intelligent local fan speed control system of our country, control strategy, equipment arrangement and control system the function, put forward the technical indicators of local fan speed intelligent fuzzy controller is designed in this paper, the control methods in detail, the overall plan of the local fan frequency conversion fuzzy control device.
Based on the conditions established the membership function of the fuzzy control method in control system and fuzzy control rules, comparative analysis of dynamic performance of some fuzzy controller. According to the system function, a self-adaptive optimization controller performance control algorithm based on 2D fuzzy, and use the MATLAB to simulate the model. The results show that the controller using self adjustment factor to optimize the response speed. Analysis of the three-phase asynchronous motor vector control method, and the modulation of MATLAB simulation, the simulation results show that the modulation control can meet the design specifications, prepare for hardware programming.
Based on the system simulation, the design of main circuit control system, the DSP (DigitalSignal Processor) model, the design of the hardware system, including control circuit, power supply module, signal sampling and conditioning circuit module, communication module, APS Inverte (rApplied Power System Inverter) structure fault latch and buffer circuit module. The selection of circuit parameters is tested. The test results show that the various parts of the hardware circuit parameters correctly, reasonable structure, good stability.
Based on the hardware platform, the whole scheme of fuzzy controller of local fan frequency conversion software, using C language of the main program and subroutine controller, including interrupt subroutine, fuzzy control subroutine, subroutine conversion function module subroutine, and the function of each module subroutine is debugged. The debugging results show that the system software. Write reasonable, flexible function, strong portability. Through the joint hardware and software debugging, local fan frequency conversion fuzzy control scheme of the control system is correct and effective, the experiment platform according to the control rules correctly.

【学位授予单位】：太原理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD441

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