An instantaneous reactive volt-ampere compensator and harmonic suppressor system

A novel control method for a reactive volt-ampere compensator and harmonic suppressor system is proposed. It operates without sensing the reactive vol t-ampere demand and nonlinearities present in the load. The compensation pr ocess is instantaneous, which is achieved without employing any complicated and involved control logic. The compensator is operated in cycle-by-cycle reference-current-controlled mode to achieve the instantaneous compensating feature. A mathematical model of the scheme is developed. Detailed analysi s and simulation results are presented. A laboratory prototype of the compe nsator is developed to validate the results.