【摘要】：隨著微小型設(shè)備和傳感器的飛速發(fā)展,振動(dòng)能量采集技術(shù)越來越受到人們的關(guān)注。振動(dòng)能量采集技術(shù)能夠廣泛應(yīng)用于人們生產(chǎn)和生活之中,以克服傳統(tǒng)電池的更換困難和壽命有限等問題,并且振動(dòng)能比其他新型能源采集效率更高,對(duì)于高空、高危、腐蝕環(huán)境下的微型機(jī)電設(shè)備供能問題,具有很好的應(yīng)用前景。本文研究的內(nèi)容有:首先介紹了壓電材料能量采集的應(yīng)用和基于壓電元件的采集電路的國(guó)內(nèi)外研究現(xiàn)狀,以及壓電元件能量采集的特點(diǎn);其次,從壓電方程出發(fā),探究了壓電懸臂梁振動(dòng)產(chǎn)生應(yīng)變、輸出電荷及電壓的基本原理,討論了用于能量采集的壓電懸臂梁等效電路模型;然后,對(duì)接口電路進(jìn)行了分析、改進(jìn)與設(shè)計(jì),研究了一種并聯(lián)雙同步開關(guān)能量采集電路(P-DSSH),對(duì)電路進(jìn)行了仿真和理論分析、及電子元器件的選型,搭建了能量采集電路,確定了懸臂梁結(jié)構(gòu)壓電振動(dòng)能量采集方案。最后,搭建了壓電能量采集電路研究的實(shí)驗(yàn)平臺(tái),對(duì)本文設(shè)計(jì)的P-DSSH電路和幾種常見接口電路分別進(jìn)行了實(shí)驗(yàn)測(cè)試,記錄了波形和數(shù)據(jù),進(jìn)行了對(duì)比研究。實(shí)驗(yàn)結(jié)果表明:振動(dòng)加速度arms為0.035m/s2時(shí),P-DSSH電路的瞬時(shí)輸出功率為0.25mW,比并聯(lián)同步開關(guān)電感接口電路(P-SSHI)、全橋整流接口電路(SEH)和LTC3588-1電路的輸出功率高很多,并且輸出功率不隨負(fù)載變化而變化。同時(shí)改變壓電懸臂梁的固有頻率進(jìn)行了對(duì)比實(shí)驗(yàn),在振動(dòng)加速度恒定不變的情況下,壓電梁放置質(zhì)量塊后,測(cè)得壓電梁的固有頻率變小了,由38.4Hz變?yōu)榱?9.3Hz,同時(shí),梁產(chǎn)生的機(jī)械應(yīng)力變大、粘貼在根部的壓電片變形量增大。在此條件下進(jìn)行試驗(yàn),實(shí)驗(yàn)結(jié)果表明:相比梁的固有頻率變低之前的實(shí)驗(yàn),雖然P-SSHI電路和SEH電路的輸出功率,LTC3588-1電路,P-DSSH電路的采集功率都有所增大,但是P-DSSH電路的瞬時(shí)輸出功率為0.264mW,輸出功率仍然比上述接口電路都要高,并且輸出功率不隨負(fù)載變化而變化。實(shí)驗(yàn)證明,本文設(shè)計(jì)的P-DSSH電路提高了壓電振動(dòng)能量采集系統(tǒng)的輸出功率、也解決了采集效率受負(fù)載變化影響的問題。P-DSSH電路穩(wěn)定輸出3.6V電壓,實(shí)現(xiàn)了1W小燈斷續(xù)工作,可以用于低功率的斷續(xù)工作的微型傳感器供能。
[Abstract]:With the rapid development of micro devices and sensors, vibration energy acquisition technology has attracted more and more attention. Vibration energy acquisition technology can be widely used in the production and life of people to overcome the difficulties of replacement of traditional batteries and limited life, and vibration energy collection efficiency is higher than other new energy sources, for high altitude, high risk. The problem of energy supply for micro-electromechanical equipment in corrosive environment has a good application prospect. The main contents of this paper are as follows: firstly, the application of piezoelectric material energy acquisition and the research status of piezoelectric element based acquisition circuit at home and abroad, as well as the characteristics of piezoelectric element energy acquisition are introduced. Secondly, based on the piezoelectric equation, the basic principle of the vibration strain, the output charge and the voltage of the piezoelectric cantilever beam is discussed, and the equivalent circuit model of the piezoelectric cantilever beam used for energy acquisition is discussed. Then, the interface circuit is analyzed, improved and designed, and a parallel dual-synchronous switch energy acquisition circuit (P-DSSH) is studied. The circuit is simulated and theoretically analyzed, and the electronic components are selected. The energy acquisition circuit is built, and the piezoelectric vibration energy acquisition scheme of cantilever structure is determined. Finally, the experimental platform of piezoelectric energy acquisition circuit is built. The P-DSSH circuit and several common interface circuits designed in this paper are tested, the waveform and data are recorded and compared. The experimental results show that the instantaneous output power of the P-DSSH circuit is 0.25 MW when the vibration acceleration arms is 0.035m/s2, which is higher than that of the parallel synchronous switch inductance interface circuit (P-SSHI). The output power of full-bridge rectifier interface circuit (SEH) and LTC3588-1 is much higher, and the output power does not change with the load. At the same time, the natural frequency of piezoelectric cantilever beam is changed and compared. When the vibration acceleration is constant, the natural frequency of piezoelectric beam becomes smaller, from 38.4Hz to 29.3 Hz, when the mass block of piezoelectric beam is kept constant. The mechanical stress of the beam increases and the deformation of the piezoelectric plate attached to the root increases. The experimental results show that the output power of P-SSHI circuit and SEH circuit, the acquisition power of LTC3588-1 circuit and P-DSSH circuit are increased, compared with the experiment before the natural frequency of beam becomes lower. However, the instantaneous output power of the P-DSSH circuit is 0.264 MW, and the output power is still higher than that of the interface circuits mentioned above, and the output power does not change with the load. Experimental results show that the P-DSSH circuit designed in this paper improves the output power of the piezoelectric vibration energy acquisition system and solves the problem that the collection efficiency is affected by the load variation. The 1W small lamp can be used in the low power intermittent operation of the micro sensor.
【學(xué)位授予單位】：石河子大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TM619

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 朱莉婭;鄭梅;陳仁文;;一種無(wú)源同步開關(guān)壓電能量收集電路研究[J];電子元件與材料;2016年04期

2 王玉霞;季宏麗;裘進(jìn)浩;尹慧慧;;一種新型自供電式壓電能量回收接口電路[J];電子元件與材料;2014年05期

3 孫子文;沈星;陳金金;;自供能壓電振動(dòng)能量回收接口電路優(yōu)化設(shè)計(jì)[J];壓電與聲光;2013年04期

4 趙興強(qiáng);溫志渝;;基于壓電材料的振動(dòng)能量收集器的諧振頻率調(diào)節(jié)[J];壓電與聲光;2013年02期

5 關(guān)新春;劉彥昌;李惠;歐進(jìn)萍;;1-3型水泥基壓電復(fù)合材料的制備與性能研究[J];防災(zāi)減災(zāi)工程學(xué)報(bào);2010年S1期

6 何超;陳文革;;壓電材料的制備應(yīng)用及其研究現(xiàn)狀[J];功能材料;2010年S1期

7 任思源;何青;;基于壓電材料的振動(dòng)能量收集試驗(yàn)研究[J];現(xiàn)代電力;2010年03期

8 季宏麗;裘進(jìn)浩;趙永春;朱孔軍;;基于TMS320F2812的懸臂梁振動(dòng)半主動(dòng)控制[J];光學(xué)精密工程;2009年01期

9 杜冬梅;何青;張志;;無(wú)線傳感器網(wǎng)絡(luò)能量收集技術(shù)分析[J];微納電子技術(shù);2007年Z1期

10 程光明;龐建志;唐可洪;楊志剛;曾平;闞君武;;壓電陶瓷發(fā)電能力測(cè)試系統(tǒng)的研制[J];吉林大學(xué)學(xué)報(bào)(工學(xué)版);2007年02期

相關(guān)碩士學(xué)位論文 前8條

1 曹昆;基于壓電材料的振動(dòng)能量采集系統(tǒng)研究[D];南京郵電大學(xué);2014年

2 霍曉青;懸臂型壓電能量采集器固有頻率和能量輸出特性研究[D];哈爾濱工業(yè)大學(xué);2010年

3 邵明乾;壓電俘能器遙控電子鎖的設(shè)計(jì)[D];武漢理工大學(xué);2010年

4 寧玉懷;壓電發(fā)電的能量轉(zhuǎn)換及存儲(chǔ)技術(shù)研究[D];中南大學(xué);2010年

5 王強(qiáng);基于壓電材料的振動(dòng)能量采集技術(shù)的研究[D];江蘇大學(xué);2008年

6 賈杰;壓電發(fā)電裝置的能量轉(zhuǎn)換及存儲(chǔ)特性研究[D];吉林大學(xué);2008年

7 龔立嬌;基于壓電材料的能量采集研究[D];南京航空航天大學(xué);2008年

8 劉艷濤;壓電自供電型無(wú)線發(fā)射裝置研究[D];吉林大學(xué);2006年

，

本文編號(hào)：2307859