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The Global Asymptotic Stability (GAS), Voltage Regulation (VR), and PowerRegulation (PR) of the excitation and governor control system are of criticalimportance for power system security. However, simultaneously fulfilling GAS,VR, and PR has not yet been achieved. In order to solve this problem, in thispaper, we propose a Lyapunov-based decentralized Control (LBC) for theexcitation and governor system of multi-machine power system. A completelycontrollable linear system is actively constructed to design thetime-derivative of the Lyapunov function and GAS is guaranteed by satisfyingthe condition of GAS in Lyapunov theorem. At the same time, VR and PR areperformed by introducing both voltage and power to the feedback. Theeffectiveness of the proposed method is tested and validated on a six-machinepower system.

Decentralized Voltage and Power Regulation Control of Excitation and Governor System with Global Asymptotic Stability