近年來，由於高科技產業的蓬勃發展，使得精密電子設備對於供電品質之要求日趨嚴格，但由於各式非線性負載的大量使用，卻造成電力公司供電品質之污染甚為嚴重。因此本文即著眼於電力品質量測軟硬體之成本考量下，提出SOAP物件服務，並搭配Client/Server之分散式架構，將其運用於電力品質之量測上，期能藉由此一標準通訊協定將分析程式予以分散平行處理，以提升分析效能。再者，經由SOAP統一開放之標準，並可使得分析軟體於各異質平台上均可執行。本論文係以XML基礎作為資訊傳輸之標準規格，並且融入SOAP技術建構出一套動態且具彈性之分散式物件服務介面，以解決相異平台間訊息溝通及傳遞效率不彰等之問題。此外，並結合後端資料庫，藉以儲存分析結果，方便日後提供電力相關人員作為決策之依據。又為使本論文所提之方法確實可行，並分別針對電力品質之諧波、閃爍與三相不平衡現象之分析，實作其伺服端服務元件，且藉由相關之電力訊號進行縝密測試，以證實本論文所開發系統之可行性與其使用價值。

For the past few years, the requirement of power quality for electronic equipment has become critical due to the flourishing development of high tech industries. However, the electric power supplied by electric power company is seriously polluted that may be attributed to the increasing use of non-linear loads. Therefore, the measurement of power quality has become particularly important in this modern industry. In view of this crucial need, this thesis will provide a cost-effective solution to measure the power quality with the aid of simple object access protocol (SOAP) technology as well as the distributed client/server structures. By use of the proposed paradigm, the performance of power quality analysis will be highly improved. Furthermore, the software developed under the open standard of SOAP will be executable at different kinds of platforms without additional modification, largely reducing the software development time. Meanwhile, the method proposed in the thesis is based on the XML specifications embedded with a dynamic and flexible interface of distributed object service. Therefore, the developed power quality analyzer could be utilized at distinct platforms, while the communication difficulty and compatibility can be both solved. To facilitate the retrieval of acquired data, this proposed analyzer also integrates with back end database; hence, the related personnel can easily evaluate and make decision based on the acquired electric signals. In order to confirm the feasibility of the proposed approach, several scenarios including the harmonics, flickers and system unbalances are all validated by use of the proposed method. Test results support the practicality of the method for the applications considered.

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