結合Android平台之新型同步相量量測單元開發

Development of a New Phasor Measurement Unit with Android Platform

陳俞帆(Yu-Fan Chen)

指導教授 ： 曾國雄 ； 俞齊山

國立臺北科技大學/電資學院/電機工程系研究所/碩士(2011年)

https://doi.org/10.6841/NTUT.2011.00417

摘要

相量量測單元(Phasor Measurement Unit，PMU)在電力系統上的應用在近幾年相當熱門，它主要可以即時監控電力系統狀況和記錄三相電壓、電流給控制中心。
由於時間同步對於PMU從各地取得的資料是相當重要的課題，本論文首先提出一新型同步時脈電路，其中利用新型的倍頻電路透過現場可程式化邏輯陣列(Field Programmable Gate Array，FPGA)以實現數位化的鎖相迴路(Phase-Locked-Loop，PLL)電路，此電路的優點在於可以非常快速的產生同步時脈訊號以及修正振盪器飄移問題。之後，本論文使用Samsung S3C6410嵌入式開發平台為基礎，在Android作業系統之下開發應用程式以接收同步量測值，並在Android平台上開發數位濾波演算法以計算基頻相量。為了提升運算速度，本論文採用Java Native Interface(JNI)介面以C/C++語言開發需要大量運算的計算過程，並在Android的Application層開發人機介面程式，以方便電力工程師之操作。最後，本論文將計算得到的基頻相量透過Android平台的網路介面，將相量資料傳送到本實驗室使用Google提供的雲端伺服器所建置的資料庫中，以進行更進一步的故障定位計算。

關鍵字

相量量測單元 ； 現場可程式化邏輯陣列 ； 鎖相迴路 ； 座標軸數位旋轉計算器 ； Java Native Interface ； Android ； Google

並列摘要

Utilizing Phasor Measurement Unit (PMU) in power system has been popular for the past several years. It used to monitor power quality and record voltage and current phasors in three-phase for centralized control in real-time .
Time synchronization is a critical issue when developing PMUs, which received data from different area. This thesis first presents a new synchronized timing circuit which used a new frequency multiplier coded on a FPGA to realize a new digital Phase-Locked-Loop circuit which used to generate a clock immediately and calibrated inaccurate of clock while source jitter. Then, this thesis uses a DMA-6410L embedded development kit to develop an Android API for computing the fundamental phasors of the synchronized measurements. To increase computation speeds, the Java Native Interface (JNI) is used to code the filtering computations on C/C++ environments.Meanwhile, a user-interface is developed on Android for power system engineers.Finally, the obtained phasors are transferred to a Google cloud server which is already setup by our laboratory for further fault location computations.

並列關鍵字

Phasor Measurement Unit ； FPGA ； PLL ； CORDIC ； Java Native Interface ； Android ； Google

參考文獻

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