本文選題：雙閥并聯(lián)系統(tǒng) + AMEsim與Simulink聯(lián)合仿真　； 參考：《哈爾濱工業(yè)大學(xué)》2012年碩士論文

【摘要】：雙閥控制是指采用兩個(gè)電液伺服閥，通過合理的控制策略，將兩個(gè)伺服閥并聯(lián)使用來實(shí)現(xiàn)對(duì)系統(tǒng)的控制，以提高整體系統(tǒng)運(yùn)行性能。本文就閥控缸電液位置伺服系統(tǒng)中提高最低平穩(wěn)運(yùn)行速度，并且保證調(diào)速范圍這一目標(biāo)，采用兩個(gè)不同流量級(jí)別的國(guó)產(chǎn)伺服閥，來替代昂貴的MOOG閥，從而降低系統(tǒng)成本。本文主要從兩個(gè)角度展開，一方面從理論上分析雙閥并聯(lián)控制系統(tǒng)的可行性與合理性，另一方面尋找合適的控制策略讓兩個(gè)伺服閥性能得到充分的發(fā)揮，實(shí)現(xiàn)較理想的控制效果。 文中從閥控缸系統(tǒng)入手，對(duì)其進(jìn)行了數(shù)學(xué)建模；接著拓展到課題背景項(xiàng)目，分析導(dǎo)致低速性能無法滿足的原因，在此基礎(chǔ)上忽略一些次要因素，著重對(duì)伺服閥的分辨率參數(shù)進(jìn)行了研究，然后根據(jù)分辨率參數(shù)的特性，，對(duì)其進(jìn)行了建模，分析了它對(duì)系統(tǒng)性能的影響。進(jìn)而從理論上驗(yàn)證了雙閥并聯(lián)控制對(duì)提高系統(tǒng)的低速性能是有效的。 如何合理的控制兩個(gè)伺服閥對(duì)于雙閥控制系統(tǒng)非常重要。本著追求快速與平穩(wěn)切換的目的，文中基于模糊控制算法設(shè)計(jì)了兩個(gè)控制器，一個(gè)用來調(diào)節(jié)大流量伺服閥的開環(huán)增益，一個(gè)用來控制大流量伺服閥在整體輸出流量中所占的比例。經(jīng)過與其他幾種控制策略的比較，文中設(shè)計(jì)的控制器具有的適應(yīng)性強(qiáng)、穩(wěn)定性好、切換平滑等優(yōu)點(diǎn)。最后以保持系統(tǒng)總增益不變?yōu)樵瓌t，設(shè)計(jì)了定增益控制器，該控制器具有結(jié)構(gòu)簡(jiǎn)單、系統(tǒng)運(yùn)行穩(wěn)定的優(yōu)點(diǎn)。 為了對(duì)雙閥并聯(lián)控制系統(tǒng)的理論與思想進(jìn)行驗(yàn)證，文中采用了AMEsim與Simulink進(jìn)行聯(lián)合仿真，以獲得更加接近實(shí)際的仿真結(jié)果。最后利用實(shí)驗(yàn)臺(tái)，對(duì)于文中的理論分析與仿真進(jìn)行了一定程度上的實(shí)驗(yàn)論證，并且對(duì)雙閥并聯(lián)控制系統(tǒng)性能提升提出了優(yōu)化意見。
[Abstract]:Double-valve control is to use two electro-hydraulic servo valves, through reasonable control strategy, two servo valves in parallel to achieve the control of the system, in order to improve the overall performance of the system. In this paper, two domestic servo valves of different flow levels are used to replace the expensive mog valve in order to improve the minimum steady running speed and ensure the speed range in the electro-hydraulic position servo system of valve control cylinder, thus reducing the cost of the system. On the one hand, the feasibility and rationality of the double-valve parallel control system are analyzed theoretically, on the other hand, the performance of the two servo valves can be brought into full play by finding the appropriate control strategy. The ideal control effect is realized. Starting with the valve control cylinder system, the mathematical modeling is carried out, and then the background project of the subject is extended to analyze the reasons why the low speed performance can not be satisfied, and on this basis, some secondary factors are ignored. The resolution parameters of the servo valve are studied emphatically, and then, according to the characteristics of the resolution parameters, the model of the servo valve is modeled, and the influence of the resolution parameter on the performance of the system is analyzed. Furthermore, it is proved theoretically that the dual-valve parallel control is effective to improve the low-speed performance of the system. How to control two servo valves reasonably is very important for double valve control system. For the purpose of fast and smooth switching, two controllers are designed based on fuzzy control algorithm. One controller is used to adjust the open-loop gain of large flow servo valve. A large-flow servo valve used to control the proportion of the overall output flow. Compared with other control strategies, the controller designed in this paper has the advantages of strong adaptability, good stability and smooth switching. Finally, a constant gain controller is designed based on the principle that the total gain of the system is not changed into a constant gain controller. The controller has the advantages of simple structure and stable operation of the system. In order to verify the theory and idea of the double-valve parallel control system, AMEsim and Simulink are used to simulate the system. Finally, the theoretical analysis and simulation in this paper are demonstrated to a certain extent by using the experiment bench, and the optimization suggestions for the performance improvement of the double-valve parallel control system are put forward.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH137.5

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 馬俊功;王世富;王占林;;電液伺服速度系統(tǒng)的模糊增益調(diào)度控制[J];北京航空航天大學(xué)學(xué)報(bào);2007年03期

2 方千山;模糊控制隸屬函數(shù)的優(yōu)化設(shè)計(jì)[J];電子測(cè)量與儀器學(xué)報(bào);2003年03期

3 李其朋,丁凡;電液伺服閥技術(shù)研究現(xiàn)狀及發(fā)展趨勢(shì)[J];工程機(jī)械;2003年06期

4 付奎生;熊偉;;滑�？刂聘纳埔簤悍抡孓D(zhuǎn)臺(tái)低速性能[J];裝備制造技術(shù);2008年07期

5 王旭永;付永領(lǐng);劉慶和;;電液位置伺服系統(tǒng)低速平穩(wěn)速度和平滑速度的研究[J];機(jī)床與液壓;1992年05期

6 劉春芳,吳盛林,趙克定,李晨光;高精度液壓仿真轉(zhuǎn)臺(tái)超低速性能的實(shí)現(xiàn)[J];機(jī)床與液壓;2002年01期

7 白金澤;王占林;裘麗華;;快速控制原型技術(shù)在液壓伺服控制中的應(yīng)用[J];機(jī)床與液壓;2006年01期

8 史書林;侯友夫;趙海峰;;電液伺服液壓缸低速性能的研究[J];機(jī)床與液壓;2006年10期

9 鮮麟波;楊鋼;傅曉云;李寶仁;;基于AMEsim和Simulink的電液位置/力混合控制仿真研究[J];機(jī)床與液壓;2007年05期

10 付永領(lǐng);朱承建;;基于AMEsim軟件的大負(fù)載電液位置伺服系統(tǒng)分析及仿真[J];機(jī)床與液壓;2007年08期

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