Predictive Control for Electrical Drives-A Survey

During the last decades several proposals have been made in literature to use predictive control for inverter control - especially in electrical drives. These algorithms are completely different to the recursive but linear predictive algorithms known from information theory, where closed mathematical equations are used (e g Kalman-filters) Only few of the presented schemes have been realized in industrial applications so far After some further progress, however, the advan­tage of predictive algorithms might lead to an increased number of industrial implementations in the future. Besides the common basic idea - to use the well-known but strongly non-linear behaviour of inverters to precalculate the best switching times - there are many differences in the details of these proposals This contribution shows similarities and differences and attempts to design a "family tree" of predictive control algorithms This might grow to a first step to a theoretical approach to deal with predictive control schemes in a more generalised way.