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液壓支架電液控制系統(tǒng)測試平臺關(guān)鍵技術(shù)研究

發(fā)布時間:2018-04-29 23:27

  本文選題:液壓支架 + 電液控制 ; 參考:《中國礦業(yè)大學(xué)》2015年碩士論文


【摘要】:液壓支架電液控制系統(tǒng)是實現(xiàn)液壓支架自動控制的核心裝置,但當(dāng)前國內(nèi)外電液控制系統(tǒng)在可擴展性、控制功能和通訊方式等方面還存在不足,為此課題組研發(fā)了一種新型的液壓支架電液控制系統(tǒng)。為了測試液壓支架電液控制系統(tǒng)的性能,本文以液壓支架電液控制系統(tǒng)測試平臺為研究對象,完成了液壓支架模擬系統(tǒng)的設(shè)計和測控系統(tǒng)的開發(fā),研究了測試平臺立柱液壓缸的壓力控制策略,并利用該平臺對液壓支架電液控制系統(tǒng)進行了性能測試。論文的主要研究內(nèi)容如下:(1)設(shè)計了液壓支架電液控制系統(tǒng)測試平臺的整體架構(gòu)及其液壓支架模擬系統(tǒng)。完成了液壓系統(tǒng)模塊、電氣系統(tǒng)模塊和比例模擬系統(tǒng)模塊的設(shè)計和選型,確定了比例模擬方案,通過電液比例閥控制液壓缸的壓力和伸縮速度,從而模擬液壓支架立柱壓力和推移速度的變化規(guī)律,為電液控制系統(tǒng)提供測試所需的傳感信號,再現(xiàn)液壓支架工作時的真實狀態(tài)。(2)研究了測試平臺立柱液壓缸的壓力控制策略。分別設(shè)計了基于常規(guī)PID控制、模糊控制、模糊PID控制和參數(shù)自校正模糊PID控制的立柱壓力控制策略,建立了四種控制器的仿真模型。仿真結(jié)果表明,參數(shù)自校正模糊PID控制器的控制效果最佳,能夠獲得較好的穩(wěn)態(tài)特性和動態(tài)響應(yīng)特性。(3)開發(fā)了測試平臺的測控系統(tǒng)。設(shè)計了測控系統(tǒng)的整體架構(gòu),完成了測控裝置的選型,編寫了測試平臺的控制程序,設(shè)計了基于Win CC的人機交互界面,實現(xiàn)了多功能液壓油源和液壓支架模擬系統(tǒng)的集中控制。(4)測試了液壓支架電液控制系統(tǒng)的性能。利用測試平臺對課題組自主研發(fā)的液壓支架電液控制系統(tǒng)進行了性能測試,驗證了基于參數(shù)自校正模糊PID控制算法的液壓缸壓力控制策略的良好效果,為液壓支架電液控制系統(tǒng)進一步的功能完善和性能提升奠定了良好基礎(chǔ)。
[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.
【學(xué)位授予單位】:中國礦業(yè)大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2015
【分類號】:TD355.4

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