本文選題：功率監(jiān)測　切入點：虛擬儀器　出處：《長安大學(xué)》2011年碩士論文　論文類型：學(xué)位論文

【摘要】：在國家“十二五”規(guī)劃建設(shè)資源節(jié)約型、環(huán)境友好型社會的背景下,本文以液壓設(shè)備節(jié)能研究為目的,針對原有液壓動力系統(tǒng)實驗臺在節(jié)能研究中存在的問題,提出了基于虛擬儀器的液壓動力系統(tǒng)功率監(jiān)測與節(jié)能控制實驗系統(tǒng)設(shè)計,并對測試與控制裝置進行了改進。改進后的實驗系統(tǒng)可以實現(xiàn)液壓設(shè)備典型負(fù)載的模擬、電機無級調(diào)速、流量自適應(yīng)控制等操作,同時在線監(jiān)測系統(tǒng)的電機功率、功率因數(shù)、流體功率及系統(tǒng)效率等參數(shù)。論文的主要研究內(nèi)容概括如下： 1.根據(jù)電機空間矢量PWM控制原理和齒輪泵數(shù)學(xué)模型,結(jié)合Matlab/simulink軟件分別搭建了基于異步電機/永磁同步電機——齒輪泵的液壓動力源模型,并對兩種動力源的仿真結(jié)果進行了對比分析。 2.針對傳統(tǒng)液壓動力系統(tǒng)在節(jié)能研究中的不足,提出了基于虛擬儀器的液壓動力系統(tǒng)功率監(jiān)測與系統(tǒng)控制的設(shè)計方案。其次,對虛擬儀器軟硬件平臺及傳感器做了詳細(xì)的介紹,并對壓力傳感器和流量傳感器進行了標(biāo)定。 3.采用Labview圖形化編程語言和模塊化程序設(shè)計思想,編寫了液壓動力系統(tǒng)功率監(jiān)測及系統(tǒng)控制上位機軟件。通過實驗驗證,實現(xiàn)了液壓動力系統(tǒng)的模擬加載、電機調(diào)速、流量自適應(yīng)控制及功率監(jiān)測等功能。 4.運用本實驗系統(tǒng),對節(jié)流調(diào)速/變頻調(diào)速液壓系統(tǒng)、異步電機/永磁同步電機液壓動力系統(tǒng)進行了能耗對比分析。實驗結(jié)果表明：將變頻調(diào)速技術(shù)和永磁同步電機引入液壓動力系統(tǒng)能顯著提高液壓動力系統(tǒng)的效率,且具有良好的動態(tài)性能。
[Abstract]:Under the background of national "12th Five-Year Plan" planning and construction of resource-conserving and environment-friendly society, the purpose of this paper is to study the energy conservation of hydraulic equipment, aiming at the problems existing in the energy conservation research of the original hydraulic power system experiment bench. An experimental system for power monitoring and energy saving control of hydraulic power system based on virtual instrument is proposed, and the test and control device is improved. The improved experimental system can simulate the typical load of hydraulic equipment. Motor stepless speed regulation, flow adaptive control, and on-line monitoring system parameters such as motor power, power factor, fluid power and system efficiency. The main contents of this paper are summarized as follows:. 1. According to the control principle of space vector PWM and the mathematical model of gear pump, the hydraulic power source model based on asynchronous motor / permanent magnet synchronous motor-gear pump is built based on Matlab/simulink software. The simulation results of the two power sources are compared and analyzed. 2. Aiming at the deficiency of traditional hydraulic power system in the research of energy saving, the design scheme of power monitoring and system control of hydraulic power system based on virtual instrument is put forward. Secondly, the hardware and software platform and sensor of virtual instrument are introduced in detail. The pressure sensor and flow sensor are calibrated. 3.Using Labview graphic programming language and modularization programming thought, the software of power monitoring and system control of hydraulic power system is compiled. The simulation loading and motor speed regulation of hydraulic power system are realized by experiment. Flow adaptive control and power monitoring and other functions. 4.Using this experimental system, the hydraulic system of throttling speed regulation and variable frequency speed regulation is applied. The energy consumption of hydraulic power system of asynchronous motor and permanent magnet synchronous motor is compared and analyzed. The experimental results show that the efficiency of hydraulic power system can be greatly improved by introducing frequency conversion speed regulation technology and permanent magnet synchronous motor into hydraulic power system. And has good dynamic performance.
【學(xué)位授予單位】：長安大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2011
【分類號】：TH137

【引證文獻】

相關(guān)碩士學(xué)位論文 前1條

1 孫建偉;基于工控機的液壓動力系統(tǒng)測控試驗平臺開發(fā)[D];長安大學(xué);2012年

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本文編號：1576856