本文選題：電磁兼容　切入點：變頻器　出處：《山東大學》2015年碩士論文　論文類型：學位論文

【摘要】：中大功率變頻器因其具有轉(zhuǎn)矩高、功率大、正反轉(zhuǎn)加減速調(diào)節(jié)方便、能夠進行軟啟動、功率因數(shù)補償、能量回饋節(jié)能等特點使其在工業(yè)領域電氣傳動系統(tǒng)中發(fā)揮著越來越重要的作用,但是中大功率變頻器系統(tǒng)會產(chǎn)生高幅值、寬頻段的傳導型、輻射型電磁干擾,污染供電電網(wǎng)的電磁環(huán)境,影響附近電氣、電子設備的正常工作,所以與之相關的電磁兼容方面的研究也成為中大功率變頻器系統(tǒng)開發(fā)與應用中的至關重要的一個環(huán)節(jié)。本文針對于中大功率變頻器系統(tǒng)輸入端對電網(wǎng)產(chǎn)生的嚴重的電磁傳導干擾,在闡述變頻器系統(tǒng)的電磁噪聲特點與電磁兼容要求的基礎上,對無源濾波器的設計理論基礎進行了詳細的分析,如二端口網(wǎng)絡、阻抗失配、系統(tǒng)等效電路、高頻模型、接地系統(tǒng)等。然后從設計實踐的角度闡述了EMI濾波器元器件類型、參數(shù)的選取依據(jù),拓撲結(jié)構的確定方法,實際布局的參照標準,設計了一款能夠使中大功率變頻器系統(tǒng)噪聲得到很好衰減的EMI無源濾波器。最后,結(jié)合在相關課題中大量的實驗、測量經(jīng)驗,介紹了電磁兼容檢測時與EMI無源濾波器相關的設備測試、安裝、布局等實驗方法,并進行了相關的EMI噪聲測試,通過EMI無源濾波器對EMI噪聲的抑制,使變頻器系統(tǒng)達到了國家相關電磁兼容標準,并總結(jié)了一系列的整改措施、注意事項等內(nèi)容。
[Abstract]:Because of its high torque, high power, convenient adjustment of positive and inverse speed and deceleration, medium and large power converter can start soft and compensate for power factor. The characteristics of energy feedback and energy saving make it play a more and more important role in the electric transmission system in the industrial field, but the medium and large power converter system will produce high amplitude, wide band conduction and radiation electromagnetic interference. Polluting the electromagnetic environment of the power supply network, affecting the normal operation of the electrical and electronic equipment nearby, Therefore, the research on electromagnetic compatibility has become a very important link in the development and application of medium and large power converter system. This paper aims at the serious problem that the input end of medium and large power converter system produces to the power network. Electromagnetic conduction interference, Based on the description of electromagnetic noise characteristics and electromagnetic compatibility requirements of inverter system, the design theory of passive filter is analyzed in detail, such as two-port network, impedance mismatch, system equivalent circuit, high frequency model, etc. Then from the point of view of design practice, this paper expounds the type of EMI filter components, the basis of parameter selection, the method of determining topology structure, the reference standard of actual layout, and so on. This paper designs a EMI passive filter which can attenuate the system noise of medium and large power frequency converter. Finally, combined with a large number of experiments in related subjects, the measurement experience is given. This paper introduces the equipment test, installation, layout and other experimental methods related to EMI passive filter in EMC detection, and carries out the related EMI noise test. The EMI passive filter is used to suppress the EMI noise. The inverter system meets the national EMC standards, and summarizes a series of rectification measures, matters needing attention and so on.
【學位授予單位】：山東大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TN713;TM921.51

【共引文獻】

相關期刊論文 前1條

1 周逢道;董威;包志強;薛開昶;胡越;孫彩堂;;基于開關電源的三相電磁干擾濾波器[J];吉林大學學報(工學版);2015年01期

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本文編號：1616801