本文關(guān)鍵詞：閥用動(dòng)圈式直線電機(jī)比例放大器的研究與設(shè)計(jì)　出處：《太原理工大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 雙向驅(qū)動(dòng)器 PWM脈寬調(diào)制 顫振 動(dòng)圈式直線馬達(dá) PCB設(shè)計(jì)

【摘要】：電液比例技術(shù)發(fā)展迅速,電液比例元件的種類也越來越多,對(duì)電液比例放大器的要求也越來越高。目前,市場(chǎng)上的電液比例方向閥大都采用雙比例電磁鐵實(shí)現(xiàn)閥的雙向控制,本次研究中的方向閥采用的是動(dòng)圈式電-機(jī)械轉(zhuǎn)換結(jié)構(gòu),通過控制動(dòng)圈式電-機(jī)械轉(zhuǎn)換器的輸入電流的大小和方向?qū)崿F(xiàn)對(duì)電液比例閥輸出力的大小和方向的控制,這種方向閥大大減小了安裝空間,并且能夠?qū)崿F(xiàn)大功率的輸出。在此基礎(chǔ)上設(shè)計(jì)了一種用于驅(qū)動(dòng)該電液比例閥的比例放大器,為電液比例閥提供驅(qū)動(dòng)電流,滿足其雙向、成比例的驅(qū)動(dòng)要求。在國(guó)內(nèi)市場(chǎng)對(duì)基于動(dòng)圈式電-機(jī)械轉(zhuǎn)換器的電液比例閥的研究還處于初級(jí)階段,專門驅(qū)動(dòng)該電液比例閥的比例放大器更是少之又少。本次設(shè)計(jì)對(duì)國(guó)內(nèi)電液比例技術(shù)的研究具有重要的參考價(jià)值。設(shè)計(jì)中為了解決閥用動(dòng)圈式直線電機(jī)的雙向驅(qū)動(dòng)問題,研發(fā)了比例放大器,采用脈寬調(diào)制信號(hào)驅(qū)動(dòng),提出將脈寬調(diào)制信號(hào)與顫振信號(hào)相互疊加的驅(qū)動(dòng)方案。可解決電機(jī)驅(qū)動(dòng)過程中的滯環(huán)現(xiàn)象,提高比例閥的動(dòng)靜態(tài)性能,減少運(yùn)動(dòng)損耗。理論分析與仿真研究表明,所研發(fā)的比例放大器性能可靠,能滿足動(dòng)圈式直線電機(jī)驅(qū)動(dòng)要求。論文通過以下六章對(duì)主要內(nèi)容進(jìn)行了具體介紹:第一章:介紹了電液比例技術(shù)的發(fā)展以及比例放大器的組成和分類,提出了課題研究的意義并闡述了本文研究的主要內(nèi)容。第二章:研究了動(dòng)鐵式和動(dòng)圈式電機(jī)械轉(zhuǎn)換器的結(jié)構(gòu)特點(diǎn),并根據(jù)結(jié)構(gòu)特點(diǎn)提出了比例放大器設(shè)計(jì)過程中的技術(shù)要求和驅(qū)動(dòng)性能。介紹了PWM脈寬調(diào)制技術(shù)的驅(qū)動(dòng)原理,給出了總體設(shè)計(jì)方案。第三章:對(duì)設(shè)計(jì)的各個(gè)模塊的原理進(jìn)行了介紹,包括:電源模塊、電流-電壓(I/V)轉(zhuǎn)換模塊、PWM脈寬信號(hào)發(fā)生模塊、顫振模塊、功率放大模塊、閉環(huán)控制模塊。詳細(xì)分析了各個(gè)模塊的電路和功能。第四章:利用EDA仿真軟件對(duì)電路的各個(gè)模塊的功能進(jìn)行了驗(yàn)證,包括:顫振信號(hào)產(chǎn)生功能、PWM信號(hào)產(chǎn)生功能、邏輯運(yùn)算功能、以及輸出電流的特性等等。通過驗(yàn)證得出所設(shè)計(jì)的電路能夠滿足對(duì)電液比例閥的雙向、成比例的驅(qū)動(dòng)要求。第五章:介紹了PCB板的設(shè)計(jì)方法以及流程,對(duì)設(shè)計(jì)過程中的元件布局,布線,以及DRC檢查做了進(jìn)一步的說明,并對(duì)設(shè)計(jì)過程中遇到的問題進(jìn)行了總結(jié)和改進(jìn)。第六章:對(duì)本次設(shè)計(jì)內(nèi)容進(jìn)行了總結(jié)并提出了設(shè)計(jì)中的不足之處和后續(xù)工作中的改進(jìn)方法。
[Abstract]:With the rapid development of electro-hydraulic proportional technology, there are more and more kinds of electro-hydraulic proportional components, and the requirements of electro-hydraulic proportional amplifier are becoming more and more high. Most of the electro-hydraulic proportional directional valves in the market adopt double proportional electromagnet to realize the two-way control of the valves. The directional valves in this study adopt the moving coil electromechanical conversion structure. By controlling the size and direction of the input current of the moving-coil electro-mechanical converter, the output force and direction of the electro-hydraulic proportional valve are controlled, and the installation space of the directional valve is greatly reduced. On the basis of this, a proportional amplifier is designed to drive the electro-hydraulic proportional valve, which provides the driving current for the electro-hydraulic proportional valve and satisfies its bidirectional performance. The research of electro-hydraulic proportional valve based on moving coil electro-mechanical converter is still in the primary stage in the domestic market. This design has important reference value for the study of electro-hydraulic proportional technology in China. In order to solve the bidirectional drive of valve motor, the design is of great value. The problem. In this paper, a proportional amplifier is developed, which is driven by pulse width modulation signal, and a scheme of superimposing pulse width modulation signal and flutter signal is proposed, which can solve the hysteresis phenomenon in motor driving process. The theoretical analysis and simulation results show that the developed proportional amplifier is reliable. The main contents are introduced in the following six chapters: chapter 1: the development of electro-hydraulic proportional technology and the composition and classification of proportional amplifier. The significance of the research is put forward and the main contents of this paper are described. Chapter 2: the structure characteristics of the moving iron type and moving coil type electromechanical converter are studied. According to the characteristics of the structure, the technical requirements and the driving performance of the proportional amplifier are put forward, and the driving principle of the PWM pulse width modulation technology is introduced. In chapter 3, the principle of each module is introduced, including power supply module, current-voltage I / V conversion module and PWM pulse width signal generation module. Flutter module, power amplifier module, closed-loop control module. Detailed analysis of the circuit and function of each module. Chapter 4th: the use of EDA simulation software to verify the function of each module of the circuit. Including: flutter signal generation function PWM signal generation function logic operation function and output current characteristics and so on. Through the verification the designed circuit can meet the two-way of electro-hydraulic proportional valve. Chapter 5th: the design method and flow of PCB board are introduced, and the layout, wiring and DRC inspection of components in the design process are further explained. And the problems encountered in the design process are summarized and improved. Chapter 6th: this design content is summarized and the deficiencies in the design and the improvement methods in the follow-up work are put forward.
【學(xué)位授予單位】：太原理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TM359.4;TN722

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