【摘要】：臭氧是一種非常容易分解，狀態(tài)并不穩(wěn)定的物質(zhì)，而且具有殺菌能力和較強(qiáng)的氧化作用。產(chǎn)生臭氧的方法多種多樣，其中屬介質(zhì)阻擋放電法使用最為普遍，簡稱DBD法。隨著經(jīng)濟(jì)的不斷發(fā)展以及科學(xué)技術(shù)的不斷提高，，臭氧的應(yīng)用變得愈來愈普遍，本文在這種背景之下，對DBD型的高效臭氧發(fā)生器的機(jī)理進(jìn)行了研究。 首先，本文對臭氧的特性以及相關(guān)應(yīng)用作了簡要的介紹。通過闡述國內(nèi)外臭氧發(fā)生器的發(fā)展，表明選用高頻高壓逆變電源是非常合理的。另外，本文主要研究的是DBD型的高效臭氧發(fā)生器，對介質(zhì)阻擋放電的基本原理以及其電極結(jié)構(gòu)進(jìn)行了一定地說明，并提出了其通用等效電路的原理圖。 其次，由于在制作臭氧發(fā)生器時(shí)，其介質(zhì)材料對其性能有著至關(guān)重要的作用。因此本文接著對高效臭氧發(fā)生器材料需要滿足的介電常數(shù)、介質(zhì)損耗、電阻率、機(jī)械性能、耐壓強(qiáng)度、導(dǎo)熱性以及介質(zhì)層厚度等方面進(jìn)行了研究，對于提高臭氧產(chǎn)量提供了很大的幫助。 考慮到在放電電源處于高頻狀態(tài)時(shí)，臭氧產(chǎn)量會(huì)增加，另外，臭氧發(fā)生器的負(fù)載具有電容特性，因此，本文在研究臭氧發(fā)生器時(shí)，采用的是高頻電源。對負(fù)載諧振型逆變器進(jìn)行了分類和比較，通過比較得知，使用電壓型逆變器更有利于改良逆變器的工作效率，從而增加臭氧產(chǎn)量。本文也對逆變電源的控制方式進(jìn)行了研究。通過對比，最終確定應(yīng)用電流過零鎖相感性PWM的控制方式。 文章最后通過先對整流濾波電路以及PWM逆變電路進(jìn)行仿真和分析，從而得到臭氧發(fā)生器主電路的仿真模型圖，并對其內(nèi)部每個(gè)模塊進(jìn)行參數(shù)的計(jì)算和設(shè)置，最后，用MATLAB軟件對其進(jìn)行仿真，從而得到其仿真結(jié)果圖。
[Abstract]:Ozone is a very easy to decompose, state is not stable, but also has bactericidal ability and strong oxidation. There are many methods to produce ozone, among which dielectric barrier discharge method is the most popular method, abbreviated as DBD method. With the development of economy and the improvement of science and technology, the application of ozone has become more and more popular. Under this background, the mechanism of high efficiency ozone generator of DBD type has been studied in this paper. Firstly, the characteristics and applications of ozone are briefly introduced in this paper. By expounding the development of ozone generator at home and abroad, it is shown that it is very reasonable to choose high frequency and high voltage inverter power supply. In addition, this paper mainly studies the DBD type high efficiency ozone generator, explains the basic principle of dielectric barrier discharge and its electrode structure, and puts forward the schematic diagram of its general equivalent circuit. Secondly, when making ozone generator, its dielectric material plays an important role in its performance. Therefore, the dielectric constant, dielectric loss, resistivity, mechanical properties, compressive strength, thermal conductivity and thickness of dielectric layer are studied in this paper. It is of great help to increase ozone production. Considering that the output of ozone will increase when the discharge power is in the high frequency state and the load of the ozone generator has the capacitance characteristic, the high frequency power supply is used in the study of the ozone generator in this paper. Based on the classification and comparison of load resonant inverters, it is found that the use of voltage source inverters is more beneficial to improve the working efficiency of the inverters and thus increase the ozone production. The control mode of inverter power supply is also studied in this paper. Through comparison, the control mode of current zero-crossing phase-locked inductive PWM is finally determined. Finally, through the simulation and analysis of rectifier filter circuit and PWM inverter circuit, the simulation model diagram of the main circuit of ozone generator is obtained, and the parameters of each module are calculated and set. Finally, the simulation model of the main circuit of ozone generator is obtained. It is simulated with MATLAB software, and the simulation result diagram is obtained.
【學(xué)位授予單位】：武漢工程大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM464

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