利用混合差分進化法設計電力系統穩定器以適用不同電網系統

Design Power System Stabilizer Using Hybrid Differential Evolution Method for Difference Power Network System

10.29688/MHJ.201108.0001

莊永松(Yung-Sung Chuang)；林文偉(Wen-Wei Lin)

電力系統穩定器 ； 機電模式 ； 極點指定 ； 混合差分進化法 ； Power system stabilizer ； Electromechanical mode ； Pole placement ； Hybriddifferential evolution method

明新學報

37卷2期（2011 / 08 / 01）

1 - 19

繁體中文

利用混合差分進化法以特徵值極點指定方法，在簡易單機系統架構下設計電力系統穩定器，以應用於不同的大型電網系統。在大型電力系統中發電機易因變動的負載及面對不同的電網架構，而影響電力系統穩定器設計，進而影響其動態性能，故需提出一套設計穩定器方法以應對不同電網系統。首先在單機系統中，發電機輸出有效、無效功率及輸電電抗變化條件下，利用混合差分進化法，以不同目標函數之特徵值極點指定方式設計電力系統穩定器，使機電模式落於指定複數平面區域中，並比較其優缺點，擇優用之。然後將此設計電力系統穩定器方法，應用於多機系統中各發電機之電力系統穩定器設計，使整個系統機電模式特徵值落於如單機系統所指定複數平面的區域內，而可獲得良好的動態性能。

The paper presents the design of the power system stabilizers (PSSs) using the hybrid differential evolution (HDE) method for difference power network system. The proposal PSS is designed to improve the dynamic performance at difference power network system. Firstly, a single-machine infinite system structure, the designed PSS improves the dynamic performance that is influenced by the load change and the different electric network structure. Using HDE method and three different objection function of the pole placement method design the PSS of the single-machine system when the active and reactive power of the generator and transmission reactance are changed, and the electromechanical mode is placed in the designated region of the left-half complex plane. With the superior design PSS method, design the power system stabilizers of the multi-machine system so that the electromechanical modes are designated in the region to ensure enough oscillation damping.

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