This paper proposed a novel prescient variable structure-exchanging based current controller for a three-stage stack driven by a power inverter. The structure details are strength to stack electrical parameters, quick powerful reaction, decreased exchanging recurrence, and straightforward equipment usage. So as to meet past details, a sliding mode controller has been produced, which is structured as limited state automata, and executed with a field-programmable entryway exhibit (FPGA) gadget. The exchanging system actualized inside the state progress chart accommodates a base number of switches by the three-stage inverter that is affirmed through reproduction and exploratory outcomes. Its direction utilizing the proposed control law gives great transient reaction by the brushless air conditioning engine control. In any case, this does not confine the more extensive appropriateness of the proposed controller that is reasonable for various kinds of air conditioning loads (rectifier and inverter) and acmotors (acceptance, synchronous, and hesitance). Another coherent FPGA torque and speed controller is produced, broke down, and tentatively confirmed.
Fig.1. Basic Circuit Of A VSI.
 M. P. Kazmierkowski, R. Krishnan, F. Blaabjerg, and J. D. Irwin, Control in Power Electronics: Selected Problems. New York: Academic, 2002.
 R. Kennel, A. Linder, and M. Linke, “Generalized predictive control (GPC)—Ready for use in drive applications?” in Proc. IEEE Power Electron. Spec. Conf., 2001, vol. 4, pp. 1839–1844.
 A. Malinowski and H. Yu, “Comparison of embedded system design for industrial applications,” IEEE Trans. Ind. Informat., vol. 7, no. 2, pp. 244– 254, May 2011.
 C. Buccella, C. Cecati, and H. Latafat, “Digital control of power converters—A survey,” IEEE Trans. Ind. Informat., vol. 8, no. 3, pp. 437– 447, Aug. 2012.
 E. Monmasson and M. N. Cirstea, “FPGA design methodology for industrial control systems—A review,” IEEE Trans. Ind. Electron., vol. 54, no. 4, pp. 1824–1842, Apr. 2007.