Abstract
This paper proposes a new approach to the individual-phase non-active current compensator under the non-sinusoidal and unbalanced conditions using the correlation function. Only the component of the load side current correlative to the source voltage waveform is detected, then the residual components are compensated on the source side. So the source current becomes sinusoidal with unity power factor with the unbalanced conditions. The basic principle of the proposed compensation method is discussed in detail. Digital computer simulation is implemented to verify the validity of the proposed compensation method. Digital computer simulation results demonstrate that the source current becomes sinusoidal with unity power factor, but the source currents remain unbalanced when the proposed non-active current compensation method is applied.
