• 作者： ?政吉；林巍聳
• 作者服務機構： 國立臺灣大學電機系
• 中文摘要： 對於可以用所謂擺動方程式描述之多機電力系統，本論文提出一個完全非集中型的控制器求解方法，使全系統不但具有指數收斂的穩定性質，而且可以承受結構性擾動；這一類型系統的揮動方程式含有非線性藕連的特?，這種特?可 以改用個別電機之間的非線性互連來表示，針對不考慮互連關係的個別電機先求解其最佳的指數型收斂控制器，再考慮 當系統受非線性互應影響時，要如何修改控制律，使能恢復最佳的指數型收斂，因而建立非集中型指數型收斂控制器， 這種方法所建立的控制器，不但能保證全系統對平衡點的指數型廣義穩定，而且具有抵抗結構性擾動的韌性；此外，整 個設計的求解過程都是以個別電機?根據，也就是完全非集中型的，因此可以有效的簡化控制器的演算，更可以節省實 際系統的硬體成本，文中並以一個四機電力系統的電腦模擬控制結果，?明本論文所探討的非集中型控制器的效果。
• 英文摘要： This paper presents a completely decentralized exponential controller for structurally perturbed multi-machine power systems which are characterized by the so called swing equation models. These mathematical models are of nonlinearly coupled types and can be described as the nonlinear interconnections of component machines. The decentralized exponential controllers are obtained by solving the optimal control problem of each decomposed machine, and then, when the nonlinear interaction among the machines is concerned, the resulting optimal gains are modified by restoring optimality. This approach can not only guarantee exponential stability in the large with respect to the equilibrium point, but also yield robustness for any structural perturbations. In addition, all the procedures of the design are subsystem-based and completely decentralized; therefore, the calculations and required hardware cost can be reduced effectively. Results from the computer simulations of the control of a four-machine power system are demonstrated.
• 中文關鍵字： decentralized control; multi-machine control
• 英文關鍵字： --