A new digital current control AC-DC converter for wind turbine

In this paper, a new digital hysteresis current control for ac-dc converters is presented. The new control circuit has the peak and valley current detectors which are comprised of an RC integrator, comparator and R-S flip-flop. These current detectors can detect the peak and valley reactor currents in real time. The proposed control circuit structure and the operation principle are explained with the simulation result. As a result, it is confirmed that both peak and valley currents are detected instantaneously using the proposed method.