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Author: search.filters.author.Promwong, SathapornSubject: search.filters.subject.fingerprinting

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    Partial Discharge Localization Model in Power Transformer with Fingerprinting Technique
    (2023-01-01)
    Chaisang, Aditep
    ;
    Tiengthong, Thanadol
    ;
    Maw, Myo Myint
    ;
    Promwong, Sathaporn
    Partial discharge localization in power transformers is of utmost importance, requiring an effective evaluation method to identify the location of such events precisely. Antenna placement poses challenges within power transformers, as improper positioning can significantly affect localization precision. This paper introduces an evaluation of the fingerprinting method for ultra-high frequency partial discharge localization. The fingerprinting method, commonly employed in wireless localization systems, is utilized to assess the accuracy of partial discharge localization. The proposed method leverages fingerprinting analysis and received signal strength to evaluate partial discharge events in power transformers. Experimental partial discharge measurements are conducted on a power transformer model provided by Tesla Power Company. The results include the average received signal strength at each measurement position and the distance error of the partial discharge location determined using the fingerprinting method. This research contributes to assessing partial discharge in power transformers, offering valuable insights for enhancing their health and performance evaluation.
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    Indoor Localization Model with Impulse Radio Transmission for Short-Range Wireless Communication Systems
    (2022-01-01)
    Muangmee, Yannopas
    ;
    Maw, Myo Myint
    ;
    Promwong, Sathaporn
    Impulse radio is another wireless communication technology developed for short-range communications, with low transmission power and wideband frequency. Which compliance with communication systems that require the speed of transmitting large amounts of data. Therefore, this project has designed and fabrication a biconical antenna. Furthermore, perform the antenna's performance test for an indoor impulse radio localization in the frequency range of 3.1 GHz to 10.6 GHz with a vector network analyzer. The results of the measurements were analyzed and evaluated in comparison with the distance error with matched filter and time-gating techniques. The results obtained from the study of this project are based on theory and very useful for basic information in the research and development of short-range wireless communication systems and positioning by impulse radio transmission.