Abstract:

This study presented the design and control of an eviter that can provide power flow in both network-connected and island-based conditions for photovoltaic (PV) systems. If the network is interrupted, the recommended power and control structure provides power flow to the load contained from solar panels. Thus, during the radiation period, the impact of interruptions on loads was reduced and the power produced in PV was used at the maximum level. In addition, the Maximum Power Point Tracking (MPPT) algorithm has been used for maximum power transfer from PV panels. The MPPT algorithm is adjusted to produce a reference stream for the evicator. In case of network interruption, the system operates as voltage controlled and the reference flow is determined by the PI controller that produces an output depending on the error between the load voltage and the nominal voltage. The recommended system is modeled and verified in the MATLAB/Simulink environment. The results show that the recommended system has successfully provided power flow in both working cases.

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