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In this paper it is proposed a real-time stability index based on the wide-area measurement made by PMUs. The proposed index can identify inter-area stability problems based on two parameters mainly: the voltage magnitude change (reduction), and the phase angle movement (separation). The most considerable feature of this index is its fast and easy calculation from synchronously measured voltage without...
This paper presents a decentralized control scheme for two types of FACTS devices: SVC and TCSC, to enhance the voltage and angular stability in a power system using the residue method. In the first place, the system is analyzed, knowing the main stability problems. Then, the system is linearized to know which the controllable and observable modes are. Then, another analysis is made to know the better...
A security scheme of the power systems should protect the integrity of the electric networks and carry out fast operations on the entire power system to prevent a possible blackout. Blackouts started as local failures led to electrical disturbances, and the complete collapse of the power systems. This work proposes a security scheme based in two stages. In the first stage, the controlled separation...
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