Parametric filters in compensation of influence of nonlinear receiver on power network

In the paper the idea of a compensator of differential current with a parametric filter is described. The task of the compensator is dynamic compensation of current, that is the difference of load current and active current delivered by an optimal energy source (generator) on account of transferred real power and shape. The block diagram of a compensator is shown and the tasks of individual blocks are referred to. The compensator is proposed as a serial connection of linear capacitance and controlled voltage source. The results of computer simulations of compensator action are shown too. The real voltage source with internal impedance represented as a serial two-terminal RL network fed a single-phase nonlinear RL load. The investigations that were realised in both static and dynamic states confirmed high effectiveness of the proposed compensation method and compensator structure. The results are the basis to perform the laboratory model of the circuit.