應用特殊保護系統以改善台電系統暫態穩定度之案例研究

The case Study of constructing Special Protection System to improve the transient stability of Taipower System

沈仲逸(Chung-Yi Shen)

指導教授 ： 陳昭榮

國立臺北科技大學/電資學院/電機工程系研究所/碩士(2008年)

摘要

台灣由於特殊地理環境的限制以及人口稠密的分布不均，造成電力系統區域性供需不平衡，且屬於海島型獨立系統，南部與北部地方均須依靠345kV輸電線連貫，且鄰近又無互聯之電力系統增補強化系統穩定度。近年來，電力需求隨經濟快速成長而日益增加，使得台電現有輸電系統安全運轉裕度相對降低，有鑑於此，如何維持電力系統穩定度為當前最重要之議題。
本論文主要為利用電力系統模擬軟體PSS/E第29版，藉由模擬2008年台電尖、離峰系統作為分析資料，當龍崎南變電所往北三回線發生台電輸電系統規劃準則以外的極端偶發事故N-3條件下，結合興達電廠、南火電廠及大林電廠利用發電機組跳脫方式的特殊保護系統以維持電力系統穩定度為目的，經模擬分析可知，本文提出之特殊保護系統策略，可供台灣電力公司相關單位參酌以降低大規模停電事件發生機率。

關鍵字

暫態穩定度 ； 特殊保護系統 ； 發電機組跳脫

並列摘要

Owing to the restrictions of particular geography and the uneven distribution of population, Taiwan has faced the problem in the regional unstability of power supply. Besides, the power system in Taiwan belongs to the island independent system, which just depends 345 KV to supply power in the southern and northern Taiwan without even other power system nearby to strengthen its stability. In recent years, the demand for power supply has sharply increased as the rapid growth in economics, nevertheless, the safety load-state in Taipower system going has become limited relatively. Upon the point of view, how to maintain the steady-state conditions of the power supply system has become the most considerable issue.
The thesis is concerning the use of Power System Simulator for Engineering ( PSS/E ), the software of 29th edition. The analytical data comes through simulating the rush-off peak load of Taipower in 2008. In the simulation of combining Xing-da, Nan-huo, and Da-lin by the method of SPS Generation Rejection so as to maintain the steady-state of power system while the extremely sporadic occurrence, such as in the condition of N-3, which is out of the criteria of Taipower transmission system, happens to the three north lines of Lung-chyi. Through the simulated analysis, it is learned that the strategy of Special Protection System referred in the thesis can be provided as the reference of reducing the probability of large-scale blackouts for the Taiwan Power Company and the authority concerned.

並列關鍵字

Transient Stability ； Special Protection System ； Generation Rejection

參考文獻

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