Browsing by Autor "E. Melgoza"

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    A Novel Compensation Scheme Based on a Virtual Air Gap Variable Reactor for AC Voltage Control
    (Institute of Electrical and Electronics Engineers, 2014) J. Avila-Montes; David Campos‐Gaona; E. Melgoza; Juan Ramón Rodriguez‐Rodrıguez
    Voltage control based on reactive power compensation is a fundamental aspect of the operation of ac electric power systems. This paper presents a novel shunt compensation scheme based on a virtual air gap variable reactor. The scheme is fully developed, from the adaptation of the virtual air gap principle to high-voltage applications and the determination of its expected performance, to the proposal of a digital cascade control using internal model and proportional-integral controllers. The suitability and flexibility of the device, and the voltage control and reactive power compensation scheme are verified by means of laboratory tests performed in a small-scale prototype. Measured results show that the proposed device and its control provide a robust load compensation scheme for ac systems.