在現代自動化工廠中,不斷電系統、變頻器、射頻電路、相位控制固態繼電器等等之非線性負載已是不可或缺之設備,其衍生之電力諧波問題,卻使得設備誤動作,造成工廠之重大損失。 有關諧波分析,應用上最廣泛也最簡單容易使用,就屬於由於頻域分析的方法,自從快速傅立葉轉換演算法被發表後,對於頻域分析就以快速傅立葉轉換為主要計算方法,本文利用個人電腦叢集進行快速傅利葉轉換的平行處理,透過網路連接個人電腦而形成的分散式平行計算架構,進行雙節點的平行運算,其節省的計算時間約有百分之三十。 本文所研究之步驟,方法及成果,希望對複雜的資料運算與運算效能有需求之研究人員,提供一些有益之參考及後續的研究方向。
In a modern and automation factory, there are some basic equipments for non-linear loading, for example Uninterruptible Power Supply, Inverter, RF circuit or Solid state Relay etc. But these equipments have Power harmonics issue that will make other equipments do wrong actions and make a huge loss. About analyses of harmonics, the most easy and simple one is Frequency Domain analysis. After Fast Fourier Transform algorithm being published, it becomes the main method in Frequency Domain analysis. In this article, we use PC Cluster to be a Multiprocessor for Frequency Domain, via Internet that can become High Performance Computing Cluster to provide double-node process, and it can reduce about 30% process time. We hope all steps, methods or results in this article can provide reference for some researches in complex data process and improve process performance.