A Novel Voltage Space Vector Control Algorithm and Its Application in Active Power Filter

In order to eliminate the harmonic constituent of the source current with excellent accuracy and real-time performance, this paper introduce a novel current control algorithm based on voltage space vector. This method gives the best suitable switching of voltage space vector using the space distribution of current error vector and reference voltage vector, and then controls the current error below the hysteresis width. and ensure the output compensate current of APF tracking the instruction current with excellent accuracy and real-time performance. Compare with the triangular-wave current control method, the simulation results prove that the novel current control method have better control accuracy and filter performance as well as lower switching frequency and switching loss.