廣域動態頻率量測技術之研究

Study on wide-area dynamic frequency measurement technology

顏良宇(Liang-Yu Yan)

指導教授 ： 林穎宏

長榮大學/資訊暨工程學院/資訊管理學系(所)/碩士(2014年)

https://doi.org/10.6833/CJCU.2014.00098

摘要

系統頻率為檢視電力系統動態的一項重要參數，藉由廣域的動態頻率量測，可顯示整個電力系統的特徵資訊，諸如：供電量與負載之間的動態變化、系統操作情況..等。本文針對廣域動態頻率量測的核心技術: 同步取樣脈波產生器與頻率計算演算法進行研究，使用硬體描述語言(VHDL)發展一全數位化的同步取樣脈波產生器並合成於FPGA，其同步誤差可維持在60奈秒內；對於頻率計算演算法，本文利用IEEE同步相量量測標準中的參考模型以計算頻率，並採用移動平均的後處理方式以提升頻率計算的準確度，頻率誤差符合IEEE同步相量量測標準中P-class 對於穩態與動態訊號之規範。

關鍵字

廣域動態頻率量測 ； 同步取樣脈波產生器 ； 頻率計算

並列摘要

The system frequency is an important parameter to observe the dynamics for a power system. The operation information of power systems, such as dynamic changes between supply and load, system operation conditions etc., can be observed through wide-area frequency measurement. In this thesis, a study on the core technologies of wide-area frequency measurement, synchronous sampling pulse generator and frequency calculation method, is conducted. A digital synchronous sampling pulse generator is developed with Hardware Description Language(VHDL) and synthesized into the FPGA. Its synchronization error can be maintained within 60 ns. For calculating values of frequency, a method, combining the reference model in IEEEC37.118.1-2011 standard and moving average approach, is developed. The accuracy of frequency calculation meets P-class requirements for steady-state and dynamic conditions in the IEEE standard.

並列關鍵字

Wide-area dynamic frequency measurements ； synchronous sampling pulse generator ； frequency calculation

參考文獻

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Z.Yuan, L.Wang,J.Bank, J. Burgett, Richard W. Conners,

Measurements and Their Applications”. John Wiley & Sons

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