研究生: |
楊永軒 Yung-hsuan Yang |
---|---|
論文名稱: |
窄頻電力線通訊系統研究與OFDM Modem實作 Narrowband Power Line Communication System Study and OFDM Modem Implementation |
指導教授: |
曾德峰
Der-Feng Tseng |
口試委員: |
韓永祥
Yung-hsiang S. Han 張立中 Li-Chung Chang |
學位類別: |
碩士 Master |
系所名稱: |
電資學院 - 電機工程系 Department of Electrical Engineering |
論文出版年: | 2012 |
畢業學年度: | 100 |
語文別: | 中文 |
論文頁數: | 128 |
中文關鍵詞: | 窄頻電力線通訊 、正交分頻多工 、多速率信號處理。 |
外文關鍵詞: | narrow band power line communication, OFDM, multirate signal processing |
相關次數: | 點閱:270 下載:1 |
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隨著智慧電網的興起,窄頻電力線通訊成為其中一項關鍵的技術,目前窄頻
電力線通訊主要採用的調變技術為正交分頻多工(OFDM),如PRIME與G3-PLC
皆是採用此調變技術的全球性窄頻電力線通訊規範。而本文主要是參考G3-PLC
的實體層規格,以數位信號處理器進行 OFDM 調變,搭配數位類比轉換器與耦
合電路來實作一組能於電力線中傳收訊號的窄頻電力線通訊模組,以建立可供研
究與實測的測詴帄台。本文中也利用多速率信號處理與多重相位分解濾波器來解
決OFDM系統中傳送端與接收端取樣速率不匹配的問題。最後則在通電與加入
電器負載的電力線中進行實際的傳收測詴,探討其在各種環境中傳輸時的效能與
可能遇到的問題。
With the strong demand for efficient energy usage by virtue of the smart grid, narrow band power line communication (NB-PLC) has been playing a crucial role recently. Widely used in PLC, Orthogonal Frequency Division Multiplexing (OFDM) technology is employed in the global narrow band power line communication standards, such as PRIME and G3-PLC. In this thesis, we first introduce the G3-PLC physical layer specification, and then implement the OFDM power line modem by digital signal processor, analog to digital daughter card, and coupling circuit. Indeed, we can build a test platform by the PLC modem to undergo noise measurements as well as study power line environment. Finally, we experiment the PLC modem in power line with electrical appliances to discuss their noise and loading effects on the power line communication. To cope with the quality of service for narrowband PLC signaling, a software-implemented digitial filter is devised to compensate for the performance loss from couplers, neglected by the previously design.
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