以SOPC實現電力品質事件辨識系統

SOPC-based Power Quality Event Recognition System

呂紹平(Shao-Ping Lyu)

指導教授 ： 蔡孟伸

國立臺北科技大學/機電學院/自動化科技研究所/碩士(2013年)

https://doi.org/10.6841/NTUT.2013.00519

摘要

近年來政府積極推動產業升級的影響下，以技術為導向的高科技產業蓬勃發展，然而設備的耗電率及使用壽命與電力品質有密切的關係，也因此電力品質的問題逐漸受到重視。
本論文以SOPC (System On a Programmable Chip) 實現電力品質事件辨識系統的設計，主要針對電壓暫態變動及電力諧波干擾進行辨識與偵測。電壓暫態變動偵測採用半週期移動視窗有效值計算，而諧波分析則根據IEC 61000-4-7的規範，採用快速傅立葉轉換進行時頻域的轉換。經由長時間的實際測試，證明本論文所發展的電力品質監測系統具有可行性與實用性。

關鍵字

電力品質 ； 電壓暫態變動 ； 諧波分析

並列摘要

In recent years, the Taiwanese government actively promoted industrial upgrading as a result the technology-oriented industries are flourishing. However, poor power quality will increase the power consumption and reduce the life time of the equipment. Hence, the power quality problems gradually arouse public attention.
In this thesis, an SOPC-based power quality analyzer (PQA) is designed. The main objectives of the proposed system are detecting transient voltage variations as well as analyzing the power harmonic interference. The transient voltage variation detection calculates the RMS value within a moving window length of half cycle. The harmonic analysis is performed with the application of Fast Fourier Transform (FFT) according to the requirements of IEC Std. 61000-4-7. The experimental results show that the proposed PQA is capable of detecting and capturing the power quality events.

並列關鍵字

Power Quality ； Transient Voltage Variations ； Harmonic Analysis

參考文獻

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