نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشکده مهندسی برق و کامپیوتر دانشگاه سمنان
2 دانشگاه سمنان
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Model Predictive Control (MPC) is of great interest due to its ability to solve the constraints of nonlinear systems. In this article, the Model Predictive Direct Power Control (MPDPC) method is proposed for a two-level inverter grid-connected in a photovoltaic system. First, a predictive direct power model is determined, and then a cost function consisting of two parts of power quality regulation and switching frequency optimization by adjusting the system parameters, is used to select the optimal voltage vectors to improve the inverter performance. The simulation results in MATLAB software show the appropriate efficiency of the proposed control method in two modes of permanent and dynamic system operation, such that the harmonic reduction of the output currents from 8.98% to 1.11% is visible. The switching in the power electronic elements of the inverter was also optimized, and the switching frequency was reduced from 12650 Hz to 8700 Hz, which will reduce losses and also increase the life of the inverter.
کلیدواژهها [English]
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