臺灣博碩士論文加值系統

本論文針對交換式(SMR)直流電信電源設備的電磁干擾(EMI)問題，採用圖控式程式語言 LabVIEW來規劃軟體介面，建立一套以個人電腦為基礎之雜訊自動量測與濾波器設計系統，不僅能夠簡化整個雜訊量測與濾波器設計流程，並具備操控簡單、資料自動擷取與記錄、易懂、易學的特性，讓操作者不須經過專業及特殊儀器的操作訓練，即能快速熟悉系統的操作使用。且挾電腦高速的運算能力，以及友善的人機介面，可大幅縮短電磁干擾雜訊問題的處理時間，不僅加速了產品的開發時程，也更能夠為電信業者所接受。最後，本論文以一部3kW交換式直流電信電源設備(220
V交流輸入, 40 ~ 60V / 60A直流輸出)為例，實際量測其電磁干擾雜訊準位，且設計出合適的濾波器，使其能夠符合VDE Class B 的規範要求。

In this thesis, a PC-based automatic measurement and filter design system for the electromagnetic interference emission of SMR is developed. The man-machine interface is written in LabVIEW graphical programming language. The effort of solving the conductive EMI is greatly reduced by the fast computing speed and the friendly man-machine interface of the PC. The emission measurement and suppression procedure established can accomplish the reduction of the developing period and cost. Not only the production is speeded up, but also the acceptability of the SMR manufacturers can increase. Finally, in order to verify the feasibility of the developed system, a 3kW SMR is taken as the equipment under test (EUT). The resulted EMI can be successfully solved and make SMR meet VDE Class B limit.

中文摘要......................................................................................................1
英文摘要......................................................................................................2
誌謝..............................................................................................................3
目錄..............................................................................................................4
圖表索引......................................................................................................7
第一章、緒論............................................................................................10
1-1、研究動機...................................................................................10
1-2、研究目的...................................................................................10
1-3、研究方法...................................................................................11
1-4、論文編排方式...........................................................................12
第二章、原理簡介....................................................................................13
2-1、交換式電源供應器 .................................................................13
2-1-1、概述..................................................................................13
2-1-2、交換式電路的基本類型與工作原理..............................15
2-1-3、交換式電源供應器未來的發展趨勢..............................18
2-2、電磁干擾...................................................................................19
2-2-1、電磁相容性......................................................................19
2-2-2、電磁干擾相關規範.......................................................21
2-2-3、電磁干擾的解決方法...................................................23
2-3、實驗室虛擬儀器工程平臺『LabVIEW』............................25
2-3-1、何謂『LabVIEW』.......................................................25
2-3-2、LabVIEW的特色...........................................................26
2-3-3、虛擬儀表『VI』...........................................................28
2-3-4、GPIB與LabVIEW........................................................30
第三章、電磁干擾量測與濾波器設計..................................................32
3-1、交換式電源供應器傳導性電磁干擾分析與量測.................32
3-1-1、傳導性電磁干擾雜訊的分析........................................32
3-1-2、傳導性電磁干擾雜訊的分離與量測............................36
3-1-3、交換式電源供應器的傳導性電磁干擾雜訊分析........41
3-2、交換式電源供應器傳導性電磁干擾濾波器設計.................43
3-2-1、電磁干擾濾波器的架構與元件特性............................43
3-2-2、濾波器等效電路的推導................................................48
3-2-3、程式化濾波器元件值設計............................................50
3-3、電磁干擾雜訊自動量測與濾波器設計系統.........................53
3-3-1、系統架構與設計方法....................................................53
3-3-2、系統軟體操作與功能....................................................54
第四章、實驗結果..................................................................................57
第五章、結論..........................................................................................60
參考文獻、..............................................................................................62
附錄A、LabVIEW軟體主程式............................................................64
附錄B、2002臺灣電磁相容研討會論文發表PP. 29-32.....................65

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