BIDIRECTIONAL CONVERTER WITH THREE-STATE SWITCHING CELL APPLIED IN INDEPENDENT AND PHOTOVOLTAIC SYSTEMS INTEGRATION NETWORK POWER DC.
DOI:
https://doi.org/10.59627/cbens.2016.1945Keywords:
battery bank, bidirectional, dual active bridge, photovoltaic systems, phase-shiftAbstract
This article presents a study on the bi-directional DC-DC Converter with Dual Active Bridge Tri-State Switching cell for use in photovoltaic systems and battery bank. It is shown the proposed system for application, the converter operating principle, its ability to charge and discharge a battery bank with a combination of photovoltaic panels, and other features. This battery bank has a nominal voltage of 48 V, 4 photovoltaic panels are used with 31 V voltage each and the total rated power of 1.06 kW, feeding a DC bus 311 V with rated power of 2 kW. The control of power flow and voltage at the output can be obtained for two variables, the phase shift (phase shift - φ) between the fundamental voltages of the two bridges and the duty cycle (D) of the power switches. The results of dynamic response to convresor are shown operating with a duty cycle greater than 0.5 in loading rate discharge of the battery bank, the latter being simulated with a resistive load. It can see his natural ability to behave as a current source DC bus and photovoltaic
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References
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