液压支架电液控制系统测试平台关键技术研究

发布时间：2018-04-29 23:27

本文选题：液压支架 + 电液控制　；参考：《中国矿业大学》2015年硕士论文

【摘要】：液压支架电液控制系统是实现液压支架自动控制的核心装置,但当前国内外电液控制系统在可扩展性、控制功能和通讯方式等方面还存在不足,为此课题组研发了一种新型的液压支架电液控制系统。为了测试液压支架电液控制系统的性能,本文以液压支架电液控制系统测试平台为研究对象,完成了液压支架模拟系统的设计和测控系统的开发,研究了测试平台立柱液压缸的压力控制策略,并利用该平台对液压支架电液控制系统进行了性能测试。论文的主要研究内容如下:(1)设计了液压支架电液控制系统测试平台的整体架构及其液压支架模拟系统。完成了液压系统模块、电气系统模块和比例模拟系统模块的设计和选型,确定了比例模拟方案,通过电液比例阀控制液压缸的压力和伸缩速度,从而模拟液压支架立柱压力和推移速度的变化规律,为电液控制系统提供测试所需的传感信号,再现液压支架工作时的真实状态。(2)研究了测试平台立柱液压缸的压力控制策略。分别设计了基于常规PID控制、模糊控制、模糊PID控制和参数自校正模糊PID控制的立柱压力控制策略,建立了四种控制器的仿真模型。仿真结果表明,参数自校正模糊PID控制器的控制效果最佳,能够获得较好的稳态特性和动态响应特性。(3)开发了测试平台的测控系统。设计了测控系统的整体架构,完成了测控装置的选型,编写了测试平台的控制程序,设计了基于Win CC的人机交互界面,实现了多功能液压油源和液压支架模拟系统的集中控制。(4)测试了液压支架电液控制系统的性能。利用测试平台对课题组自主研发的液压支架电液控制系统进行了性能测试,验证了基于参数自校正模糊PID控制算法的液压缸压力控制策略的良好效果,为液压支架电液控制系统进一步的功能完善和性能提升奠定了良好基础。
[Abstract]:The electro-hydraulic control system of hydraulic support is the core device to realize the automatic control of hydraulic support. However, at present, there are still shortcomings in the expansibility, control function and communication mode of electro-hydraulic control system at home and abroad. Therefore, a new type of electro-hydraulic control system for hydraulic support has been developed. In order to test the performance of the hydraulic support electro-hydraulic control system, this paper takes the hydraulic support electro-hydraulic control system test platform as the research object, completes the design of the hydraulic support simulation system and the development of the measurement and control system. The pressure control strategy of the column hydraulic cylinder on the test platform is studied, and the performance of the electro-hydraulic control system of the hydraulic support is tested by the platform. The main contents of this paper are as follows: (1) the whole structure of the test platform of hydraulic support electro-hydraulic control system and its hydraulic support simulation system are designed. The hydraulic system module, the electrical system module and the proportional simulation system module are designed and selected. The proportional simulation scheme is determined. The pressure and expansion speed of the hydraulic cylinder is controlled by the electro-hydraulic proportional valve. In order to simulate the variation law of the pressure and speed of the hydraulic support column, to provide the sensing signal needed for the test of the electro-hydraulic control system, and to reproduce the real state of the hydraulic support, the pressure control strategy of the column hydraulic cylinder of the test platform is studied. The column pressure control strategies based on conventional PID control, fuzzy control, fuzzy PID control and parameter self-tuning fuzzy PID control are designed, and the simulation models of four kinds of controllers are established. The simulation results show that the parameter self-tuning fuzzy PID controller has the best control effect and can obtain better steady-state and dynamic response characteristics. The whole architecture of the measurement and control system is designed, the type selection of the measurement and control device is completed, the control program of the test platform is written, and the man-machine interactive interface based on Win CC is designed. The performance of electro-hydraulic control system of hydraulic support is tested by means of centralized control of multi-function hydraulic oil source and hydraulic support simulation system. The performance of the electro-hydraulic control system of hydraulic support developed by our team is tested by using the test platform, and the good effect of the hydraulic cylinder pressure control strategy based on the parameter self-tuning fuzzy PID control algorithm is verified. It lays a good foundation for further function improvement and performance improvement of hydraulic support electro-hydraulic control system.
【学位授予单位】：中国矿业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD355.4

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