Abstract

AYALA TACO, Jaime; GUTIERREZ, Roberto; GUERRA JIMENEZ, Susset  and  FERNANDEZ CORREA, Alexander. DESIGN AND IMPLEMENTATION OF A DUAL SLIDING MODE CONTROL FOR A BUCK DC-AC CONVERTER. Cienc. Ing. Neogranad. [online]. 2015, vol.25, n.1, pp.91-111. ISSN 0124-8170.

This paper presents the design and implementation proposal of a dual sliding mode control for a Buck DC-AC converter. The candidate sliding surfaces were set out according to the demands of the application and, through a logic activation of the semiconductor keys (MOSFETs), independent control of the voltage amplitude for the positive and negative half cycles of the output wave in AC was obtained, in order to reach a specific level of DC introduced into the AC signal. Voltage disturbances were entered into the converter input and load variations were generated in order to test the robustness of the proposed control system. The control was implemented on a microcontroller AVR Atmega164PA and practically tested. Finally, a comparison of the results obtained experimentally and those obtained through simulations in SCILAB5 was made.

Keywords : DC-AC Buck Converter; sliding mode control; double control.

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