發(fā)布時(shí)間：2018-10-12 20:52

【摘要】：本文在介紹了磁控電抗器主體結(jié)構(gòu)、工作原理和運(yùn)行狀態(tài)的基礎(chǔ)上,利用有限元分析軟件ANSYS建立了其三維結(jié)構(gòu)模型并進(jìn)行了理論分析和數(shù)學(xué)推導(dǎo),對(duì)其電磁特性、損耗特性、溫升特性進(jìn)行了全面研究。磁控電抗器磁路分布及磁密大小,會(huì)直接影響到其損耗。而各項(xiàng)損耗最終會(huì)以熱效應(yīng)的方式導(dǎo)致電抗器內(nèi)部溫升,不僅降低其工作效率、浪費(fèi)電能,還會(huì)導(dǎo)致絕緣老化,危害電抗器安全穩(wěn)定運(yùn)行。如果能找出導(dǎo)致其損耗增加的因素并在磁路結(jié)構(gòu)上進(jìn)行新的設(shè)計(jì)和改進(jìn),不僅能夠從根本上改善磁控電抗器的運(yùn)行性能,還能大大減少設(shè)計(jì)周期和費(fèi)用,有助于MCR的推廣應(yīng)用,充分發(fā)揮其優(yōu)勢(shì)。為此,本文研究了影響磁控電抗器鐵芯損耗和溫升的各種因素,探索了磁路設(shè)計(jì)的原理和方法�；诖朔椒�,針對(duì)磁控電抗器損耗大、溫升大的缺點(diǎn),提出了改善其工作性能的多種新型磁路結(jié)構(gòu)。研究了磁控電抗器磁路結(jié)構(gòu)與性能之間的關(guān)系,推導(dǎo)了材料磁導(dǎo)、鐵芯直徑和小截面面積對(duì)其磁路性能的影響機(jī)理,給出了一種通用的磁路結(jié)構(gòu)優(yōu)化設(shè)計(jì)方法。通過對(duì)新型磁控電抗器結(jié)構(gòu)的理論分析、比較論證及仿真驗(yàn)證,表明了該設(shè)計(jì)可以大大降低磁控電抗器的損耗和溫升,滿足實(shí)際工程的要求。
[Abstract]:Based on the introduction of the main structure, working principle and running state of the magnetron reactor, the three-dimensional structure model of the magnetron reactor is established by using the finite element analysis software ANSYS, and the theoretical analysis and mathematical derivation are carried out, and the electromagnetic characteristics and the loss characteristics are analyzed. The characteristics of temperature rise were studied. Magnetic circuit distribution and magnetic density of magnetic reactor will directly affect its loss. The loss will eventually lead to temperature rise in the reactor by the way of thermal effect, which will not only reduce its working efficiency, waste electricity, but also lead to insulation aging, harm to the safe and stable operation of reactor. If we can find out the factors leading to the increase of loss and make new design and improvement in the structure of magnetic circuit, we can not only fundamentally improve the performance of the magnetron reactor, but also greatly reduce the design cycle and cost, which is helpful to the popularization and application of MCR. Give full play to its advantages. In this paper, the factors affecting the loss and temperature rise of the core of the magnetron reactor are studied, and the principle and method of the magnetic circuit design are explored. Based on this method, a variety of new magnetic circuit structures are proposed to improve the performance of magnetron reactor. The relationship between magnetic circuit structure and performance of magnetically controlled reactor is studied. The influence mechanism of material magnetic conductance, core diameter and small cross section area on magnetic circuit performance is deduced, and a general optimization design method of magnetic circuit structure is presented. Through the theoretical analysis, comparison and simulation of the structure of the new type magnetron reactor, it is shown that the design can greatly reduce the loss and temperature rise of the magnetron reactor and meet the requirements of practical engineering.
【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TM47

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