非線性均壓材料的設計理論與參數(shù)調控
發(fā)布時間:2019-07-22 18:45
【摘要】:具有非線性電學參數(shù)的材料,其電導率或介電常數(shù)能夠隨著空間電場做出自適應的改變,從而達到智能改善絕緣介質空間電場分布均勻性的效果,可用于緩解高壓設備局部集中的高電場。目前,國內(nèi)外已經(jīng)能夠制備出具有高穩(wěn)定水平的非線性電導特性的材料,如以氧化鋅壓敏微球為填料,以絕緣材料為基體的復合物。該文詳細綜述了國際上對于非線性電導材料均壓的設計理論,介紹了如何根據(jù)實際改善電場分布的需求選擇非線性均壓材料的參數(shù)。在此基礎上,總結國際上學者對于在材料制備過程中調控材料非線性參數(shù)以滿足均壓設計需求的研究工作。本文也對非線性均壓材料在應用于實際高壓設備方面的進展做了簡單介紹。
[Abstract]:The conductivity or dielectric constant of materials with nonlinear electrical parameters can be changed adaptively with the space electric field, so as to achieve the effect of intelligently improving the uniformity of the spatial electric field distribution of the insulating medium, and can be used to alleviate the high electric field in the local concentration of high voltage equipment. At present, materials with high stable nonlinear conductivity, such as zinc oxide varistor microspheres as fillers and insulating materials as matrix, have been prepared at home and abroad. In this paper, the design theory of voltage equalizing for nonlinear conductive materials in the world is reviewed in detail, and how to select the parameters of nonlinear voltage equalizing materials according to the actual needs of improving the electric field distribution is introduced. On this basis, the research work of international scholars on regulating the nonlinear parameters of materials to meet the needs of pressure sharing design in the process of material preparation is summarized. The development of nonlinear pressure equalizing materials in practical high pressure equipment is also briefly introduced in this paper.
【作者單位】: 清華大學電機系電力系統(tǒng)及發(fā)電設備控制和仿真國家重點實驗室;
【分類號】:TM21
本文編號:2517817
[Abstract]:The conductivity or dielectric constant of materials with nonlinear electrical parameters can be changed adaptively with the space electric field, so as to achieve the effect of intelligently improving the uniformity of the spatial electric field distribution of the insulating medium, and can be used to alleviate the high electric field in the local concentration of high voltage equipment. At present, materials with high stable nonlinear conductivity, such as zinc oxide varistor microspheres as fillers and insulating materials as matrix, have been prepared at home and abroad. In this paper, the design theory of voltage equalizing for nonlinear conductive materials in the world is reviewed in detail, and how to select the parameters of nonlinear voltage equalizing materials according to the actual needs of improving the electric field distribution is introduced. On this basis, the research work of international scholars on regulating the nonlinear parameters of materials to meet the needs of pressure sharing design in the process of material preparation is summarized. The development of nonlinear pressure equalizing materials in practical high pressure equipment is also briefly introduced in this paper.
【作者單位】: 清華大學電機系電力系統(tǒng)及發(fā)電設備控制和仿真國家重點實驗室;
【分類號】:TM21
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