Comparison analysis of resonant controllers in discrete domain taking into account the computational delay and design of a delay compensator

This paper present the study, analysis and design of proportional-resonant classic (classic PR) and vector-resonant (VR) controllers. The vector resonant controller is most robust than the controller classic PR as the... [ view full abstract ]

This paper present the study, analysis and design of proportional-resonant classic (classic PR) and vector-resonant (VR) controllers. The vector resonant controller is most robust than the controller classic PR as the parametric variations and frequency variations. This becomes most significant in applications that require selective harmonics compensation, since the higher the order of frequency to be compensated, the worse the system performance for both controllers. This situation is aggravated when the design is carried in discrete domain due to the effect of computational delay. Thus, in this paper will be carried out comparative analysis of classic PR and vector-resonant controllers in discrete domain no delay compensation and with delay compensation, which notes that there is an improvement in system performance when a computational delay compensator allowing to compensate harmonics or high order.