Abstract
Photovoltaic systems containing rechargeable batteries as a power buffer takes extensive DC-DC converters for photovoltaic panel control and battery regulation. This paper suggests the non-isolated bidirectional fed grid for stand-alone pv systems in order to simplify the operation by reducing the number of transformers. In the bidirectional converter suggested, the power is transmitted from the solar to the grid. Then lack of PV power; back up storage that is battery supplies power. Fuzzy PID control is used to controls the voltage of DC along with increases the gain of voltage by means of a bidirectional converter. The proposed bidirectional converter implemented and the simulations are observed in MATLAB / Simulink.
Highlights
Rechargeable batteries for stable power supplies, by tampering fluctuating solar energy production, are required for renewable energy systems such as PV systems
Storage in battery-based generation of photovoltaic electricity is supplied to a bidirectional converter connected to the grid
Simulation Results Bidirectional grid-connected device configuration based on renewable energy has been deployed and findings in MATLAB / SIMULINK have been verified
Summary
Rechargeable batteries for stable power supplies, by tampering fluctuating solar energy production, are required for renewable energy systems such as PV systems. In the use of electronic power converters has been growing in recent days and the bidirectional converter has been more appealing [3-5]. In medium to wide voltages the bidirectional inverter is used. The transformer is more appealing with galvano insulation and uses the pulsation width modulation to control the current of the dc link [6-7]. To preserve the strength of the bidirectional inverter, the angle of phase shift from primary into the secondary controls verified. Many industries attracted effective traditional PID controller by the simple simulation, flexibility modification and regulation. Due to its simplified structure and its high efficiency, the fuzzy-PID attracted most scientists in steady condition, and high performance in complex conditions benefited [13-14]
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