發(fā)布時間：2018-02-09 15:08

  本文關(guān)鍵詞： 納秒脈沖 表面介質(zhì)阻擋放電 電極間距 等離子體分布特性 外電場分布　出處：《電工技術(shù)學(xué)報》2017年02期 　論文類型：期刊論文

【摘要】：電極間距是表面介質(zhì)阻擋放電(SDBD)的一個重要結(jié)構(gòu)參數(shù)。通過實驗研究和仿真計算,研究電極間距對納秒脈沖SDBD等離子體分布特性的影響,并從理論上分析類彌散和離散通道兩種等離子體分布的形成機(jī)制。實驗研究表明,電極間距是造成兩種典型特性及不同等離子體分布的關(guān)鍵結(jié)構(gòu)參數(shù)。通過對放電區(qū)域外電場的仿真計算發(fā)現(xiàn),不同電極間距下外電場分布形態(tài)和數(shù)值的差異,是形成兩種不同等離子體分布模式的直接原因。結(jié)合氣體放電基本理論,分析認(rèn)為:等離子體類彌散分布是由于流注前向發(fā)展和橫向激發(fā)電離同時在起作用,而離散通道分布是因為流注通道以前向發(fā)展為主、橫向電離作用較弱;兩種等離子體分布模式形成的根本原因在于電場隨時間的增大率和隨空間的減小率以及流注通道的發(fā)展速度之間的匹配。
[Abstract]:The electrode spacing is a surface dielectric barrier discharge (SDBD) is an important structural parameter. Through the experimental research and Simulation of electrode spacing on the effect of nanosecond pulse SDBD plasma distribution characteristics, and the theoretical analysis of class dispersion and discrete channel two formation mechanism of plasma distribution. Experimental results show that the electrode spacing is the result of two typical characteristics and key structure of different distribution of plasma parameters. Through the simulation of electric field on the discharge outside the region calculated that the difference distribution form and value of the external electric field of different electrode spacing, is the direct cause of formation of two different plasma distribution mode. Combined with the basic theory of gas discharge analysis shows that the plasma dispersion is due to the streamer development of forward and lateral excitation and ionization worked at the same time, while the discrete channel distribution because of the streamer channel prior to the development of the main, cross Weak to ionization; two basic reasons for the formation of plasma distribution model is matching between the development speed of the increasing rate of electric field with time and space, with the rate of decrease of the streamer channel.

【作者單位】： 輸配電裝備及系統(tǒng)安全與新技術(shù)國有重點實驗室(重慶大學(xué)電氣工程學(xué)院);中國科學(xué)院電工研究所;中國科學(xué)院電力電子與電氣驅(qū)動重點實驗室;
【基金】：國家自然科學(xué)基金(51577177和51607018) 中央高�；究蒲袠I(yè)務(wù)費(106112016CDJXY150003)資助項目
【分類號】：O461

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