In this paper, a new control method for the utilitv interactive inverter based on the deadbeat control with FPGA based hardware controller is proposed. Deadbeat conitrol is one method to ensure the output voltage or current matches to the references at thc sampling instant, so adopting this control mllethlod to thc utility interactive inverter, the response of the system is much improved with small LC filter component compared with the conventional PI control, which results in the improvement of the cost performance of the invertcr.Also, to utilize thio capability of FPGA based hardware controller, a mutlti sampling mnethod is proposdl, which enables IMHz sampling while the carrier period to improve the control accuracy.All the control circuit for the proposed cmrrent control method rusing voltage deadbeat control and PLL control with quasi-dq transformation aald multi sampling method are implemented in FPCA based hardware controller. The design concept of the controller is also described. and the advantages and the disadvantage aro dtiscussed through simulationus and experimcnts.

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