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Lithium-ion based battery energy storage system has become one of the most popular forms of energy storage system for its high charge and discharge efficiency and high energy density. This dissertation proposes a high-efficiency grid-tie lithium-ion battery based energy storage system, which consists of a lifepo4 battery based energy storage and associated battery management system (BMS), a high-efficiency bidirectional ac-dc converter and the central control unit which controls the operation mode and grid interface of the energy storage system. The implemented converter efficiency peaks at 97.8% at 50-khz switching frequency for both rectifier and inverter modes. Therefore, the equalization, lifetime extension, and capacity flexibility of the battery energy storage sys The proposed BSG-inverter is composed of multiple bidirectional buck–boost type dc–dc converters (bbcs) and a dc–ac unfolder. Advantages of the proposed BSG-inverter include: single-stage power conversion, low battery and dc-bus voltages, pulsating charging/discharging currents, and individual power control for each battery module.tem can be achieved. Based on the developed equations, the power flow of the battery system can be controlled without the need of input current sensor. Also, with the interleaved operation between bbcs, the current ripple of the output inductor can be reduced too. The computer simulations and hardware experimental results are shown to verify the performance of the proposed BSG-inverter.
Keywords:
Battery Energy Storage System, Grid Connected Inverter
Cite Article:
"Charging and Discharging of Grid Connected Battery Using Bidirectional Single Stage Converter ", International Journal of Science & Engineering Development Research (www.ijrti.org), ISSN:2455-2631, Vol.3, Issue 12, page no.60 - 66, December-2018, Available :http://www.ijrti.org/papers/IJRTI1812012.pdf
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000204862
ISSN:
2456-3315 | IMPACT FACTOR: 8.14 Calculated By Google Scholar| ESTD YEAR: 2016
An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 8.14 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator