Independent and Direct Rotor-Flux Oriented Control of series-connected induction machines using decoupled Kalman-filters

This work deals with an Independent and Direct Rotor-Flux Oriented Control (IDRFOC) of series-connected two-induction machines. This consists of connecting a six-phase motor with a three-phase one. The independence of flux-observers of both machine is predicted analytically from state equation. The Kalman observer is chosen to perform the estimation of the flux of each machine. Simulation results demonstrate the independence of flux observers and controls of both machines.