An Implementation of Cross-Platform Power Quality Analyzer Utilizing SOAP Technology

• Main Authors: Chao-Yuan Huang, 黃朝源
• Other Authors: Shyh-Jier Huang
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/34873467548329995988

碩士 === 國立成功大學 === 電機工程學系碩博士班 === 91 === 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.