The control algorithm for active and hybrid correction systems of voltage and current waveforms

The paper is devoted to the problem of creation and development of effective and perspective control means and methods for correction of voltage and current level and harmonic spectrum by means of active and hybrid correction systems. The main types and topologies of active and hybrid correction systems on the base of active and passive filters are presented and analyzed. The advantages and disadvantages of the main existing theories and methods of harmonic detection and compensation are presented and analyzed. The universal control algorithm and control system structure for active and hybrid correction systems are proposed. The proposed control system structure and algorithm are based on existing theories of harmonic compensation and power decomposition, current physical components, and p-q theory. The efficiency of proposed algorithm and control system is proved by results of mathematic modeling and computer simulation.