evaluation of operation of inverter in a DC/AC smart grid renewable generation system

Exploitation of renewable energy resources can significantly decrease energy demands from the main grid and reduces environmental pollutions. In this article, an effective inverter control method is presented to evaluate inverter operation in a DC/AC smart grid renewable generation system. The case study consists of photovoltaic (PV), battery energy storage (BESS), wind turbine (WT) systems, and grid energies which are integrated in a DC/AC smart grid. The presented inverter (DC/AC converter) control schemes in this article including combine discrete time sliding mode current control and robust servomechanism voltage control to supply the local AC loads and to regulate voltage, frequency, and power oscillations.DC link voltage is used as a criterion in order to coordinate the renewable resources (PV and WT) generation, BESS, grid, and inverter operation in the smart grid renewable generation system. A MATLAB/SIMULINK simulation test-bed is implemented to study the stability of the case study system; and to validate the presented inverter controller for using in the DC/AC smart grid renewable generation system.

کلیدواژه ها:

inverter control ، sliding mode current control ، robust servomechanism voltage control ، renewable generation ، smart grid