電壓驟降是由系統故障、過載或大型馬達啟動所導致之短時間電壓大小的下降。電壓驟降是許多敏感性設備跳機無法正常工作的主因，為了解一些與程控相關之設備的電壓忍受情形，本研究對一些電壓敏感的設備（個人電腦、AC電磁接點、高壓氣體放電燈及可程式邏輯控制器），進行壓降測試並建立他們的電壓忍受曲線。本研究參考IEC 61000-4-11所建議之電壓降幅及持續時間進行測試，利用測試結果之資料可估計不同用戶對電壓品質的需求及敏感性負載易受事故影響之區域範圍。

Voltage sags are short duration of voltage reduction caused by system faults, overloads and starting of large motors. Voltage sags are the main causes of trips of various sensitive equipment. In order to understand the voltage-tolerance performance of some process control equipment, this thesis presents test results of some sensitive equipment (such as computers, AC contactors, high intensity discharge lamps and programmable logic controller) and provides their voltage tolerance curves. A number of magnitudes and durations recommended by IEC 61000- 4- 11 are used to perform the tests. With the performance information in hands, power quality requirements of different types of equipment and customer, and area of vulnerability for sensitive loads could be estimated.

目 錄

中文摘要 I
英文摘要 II
目 錄 III
圖 目 錄 V
表 目 錄 VII

第一章 緒論 1
1-1 研究背景與動機 1
1-2 國內外研究概況 2
1-3 論文大綱 4
第二章 電壓驟降及敏感性設備介紹 6
2-1 電壓驟降類型及特性 6
2-1-1電壓驟降 6
2-1-2電壓驟降類型 8
2-1-3電壓驟降特性 10
2-2 電壓驟降標準 13
2-2-1設備測試方面的標準 13
2-2-2設備忍受能力的標準 13
2-3 電壓驟降對敏感性設備之影響 16
2-3-1 電磁接點 16
2-3-2 可程式邏輯控制器 17
2-3-3 個人電腦 18
2-3-4 高壓氣體放電燈 20
第三章 電壓驟降忍受能力測試流程及儀器介紹 24
3-1 測試流程及設備簡介 24
3-2 測試步驟及方法 25
3-2-1 AC電磁接點測試程序 25
3-2-2 PLC測試程序 27
3-2-3 個人電腦測試程序 33
3-2-4 高壓氣體發電燈測試程序 37
第四章測試結果與討論 41
4-1 電磁接點測試結果 41
4-2 可程式邏輯控制器測試結果 44
4-3 個人電腦測試結果 47
4-4 高壓氣體放電燈測試結果 52
4-4-1 安定器型式對壓降忍受能力的影響 52
4-4-2 Point on wave對HID燈忍受能力的影響 53
4-4-3 燈泡新舊對HID燈壓降忍受能力的影響 54
4-4-4 燈泡種類對HID燈壓降忍受能力的影響 55
4-5 討論 57
第五章結論及未來努力方向 60
5-1結論 60
5-2未來努力方向 61

參考文獻 63
附錄A 靈敏性設備電壓驟降忍受能力測試認證 67

參考文獻

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