A strategy for voltage regulation in Eolic systems

Saturated core voltage regulators: parameterization, computational models, and performance studies

“…This inspiration, which recognizes the special features of this type of application, has rekindled interest in these features and thus a new interest in voltage compensation via saturated regulators, as ascertained through the efforts reported in the literature. 12,13 The functional principle of the SCR is extremely peculiar, as it is found on the characteristic operating curve (UxI), which is directly related to the type of magnetic material used in the core. It is worth noting that the voltage U corresponds to that of the busbar, together with that which the reactor is connected, and I is the inductive current required by the already mentioned magnetic unit.…”

“…Hence, it promotes a continuous control action of the stated magnitudes and their placement within the desired standards. [7][8][9]12 Granting that the above physical principle has been summarized, it is noted that the saturated reactor nonlinear operational feature, which is presented as the main basis of the regulatory process, introduces undesirable levels of harmonic distortion onto the electrical grid, 11 which is a disadvantage found with this kind of voltage regulator. Faced with this fact, the use of topologies in layouts with core and windings connection, as demonstrated in the arrangements of Twin-Tripler (12 pulses) and Treble-Tripler (18 pulses), 8 are presented as classic strategies used for minimizing these effects.…”