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The paper presents a new digital-controlled single-phase transformer-based inverter for non-linear load applications. A capacitive full-bridge circuit with high bandwidth is added to provide instant current under non-linear load condition and thereby reducing the voltage harmonics significantly to meet the harmonic standard, IEEE 519–1992. The redundant capacity, cost, size and weight of line frequency...
This paper discusses a controller based on a proportional-repetitive control for a dynamic voltage restorer (DVR). Repetitive control can achieve zero steady-state error of tracking sinusoidal signal, but it doesn't make a quick response to the disturbance and needs at least one fundamental cycle to function properly. The control system based on proportional-repetitive controller, in stationary frame...
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