Switching pattern improvement for One-Cycle Zero-Integral-Error Current Controller

The one-cycle current control is a non-linear technique based on the cycle-by-cycle calculation of ON time power converter switches. Its application not common in tracking fast-changing reference currents, due to necessity fast and accurate measurements, high-speed computing. In previous study, digital controller minimization integral error was developed applied three-phase shunt active filter. present work, has been improved by proposing new switching pattern. It allows an easy implementation that reduces critical computational cost avoids main drawbacks implementation. three-leg four-wire filter, including stability analysis considering proposed Simulated experimental results are presented validate controller.