Estimation of electromechanical systems power controllability according to instantaneous power components

It has been shown that the analysis of power conversion processes in all the power channel elements, based on instantaneous power harmonic components, underlies the estimation of electromechanical systems power controllability. Presence of additional power variable component reflecting energy exchange processes in the system results in the decrease of the object power controllability. It has been established that effective power is a quality measure for power processes in the system. An index of system power controllability has been offered. It has been proved that decomposition of instantaneous power signal into orthogonal components reflects real power condition of the electromechanical system.