A heating, ventilation, air conditioning, and refrigeration system includes one or more variable frequency drives controlled by one or more VFD controllers, which are configured to provide three-phase power to one or more three-phase AC motors and single-phase power to one or more single-phase AC motors. The catalytic formulation, object of the present invention, consists of at least one metal of Group VI B and at least one metal of Group VIII B and one element of Group V A of the periodic table deposited on a support based on surface modified alumina with an inorganic oxide of a metal of Group II A, IV A andor IV B. By superposition, the complete loop filter response for each output candidate vector equals the difference between a forced pattern response and a natural input signal response.