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題名 | 抑制低頻振盪之最佳化電力系統穩定器=Damping Low-Frequency Oscillations via Optimization Power System Stabilizers |
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作者姓名(中文) | 李象; | 書刊名 | 正修學報 |
卷期 | 22 2009.11[民98.11] |
頁次 | 頁119-134 |
分類號 | 448.115 |
關鍵詞 | 最佳化; 電力系統穩定器; 低頻振盪; 蟻群系統; Optimization; Power system stabilizers; Low-frequency oscillations; Ant colony system; |
語文 | 中文(Chinese) |
中文摘要 | 本文提出抑制低頻振盪之最佳化電力系統穩定器(PSSs)。該穩定器採用蟻群系統(ACS)法來給予最佳化設計。該法是模仿真實螞蟻有在食物地點與蟻巢間找出最短路徑的能力。利用此種能力可解電力系統穩定器參數的組合性最佳化問題。爲使獲得的最佳參數值能在不同工作點下亦能得到好的低頻振盪阻尼以及保證這些參數被實現的可能,最佳化設計過程中將考慮進某些代表性的工作點以及建立起PSS參數的可行解空間。低頻模式之特徵值分佈圖、時域模擬分析及系統遭受干擾故障時評估整體發電機振盪阻尼的特性指標均顯示蟻群系統法具有最佳化設計電力系統穩定器並用以抑制系統低頻振盪的潛力。 |
英文摘要 | Damping low-frequency oscillations via optimization power system stabilizers (PSSs) will be presented in this paper. The optimization design of PSSs is completed by using an ant colony system (ACS). This approach stimulates the behavior of real ants. Real ants are able to find the shortest path between a food source and their nest. This ability will be used to design power system stabilizers, which is a combinational optimization problem. For the purpose that the determined parameters of PSSs can also give good damping on the low-frequency oscillations under different operating points, and for ensuring the implementation of these determined parameters, some representative operating points and a feasible solution space of the PSS parameters are selected and established, respectively, in the optimization process. The distribution of low-frequency mode eigenvalues on the complex plane, time domain simulations, and some performance indices to assess the damping of generator oscillations in power systems all show that the ACS approach has the potential to design power system stabilizers and damp out the low-frequency oscillations of power systems. |
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