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In this paper, a new extended cascaded predictive control with multiple reference models method ECGPC/MRM is synthesized under energy saving control of an induction motor drive to improve high efficiency of the drive system. The method gives the possibility to control at the same time different variables more than in conventional CGPC. For this method, the plant is assumed to be divided into three parts and three GPC algorithms must be computed. The control law is then derived under polynomial structure in order to analyse the stability of the different controlled open loops in the frequency domain. Simulation results demonstrate the performance of the proposed method.