Bidirectional Resonant DC-DC Converter for Microgrid applications
Amritha. G1, Kanimozhi. G2, Umayal. C, Ravi. S3
1Kanimozhi G, School of Electrical and Electronics Engineering, VIT Chennai, Tamilnadu, India.
2Amritha G School of Electrical and Electronics Engineering, VIT Chennai, Tamilnadu, India.
3Umayal.C, School of Electrical and Electronics Engineering, VIT Chennai, Tamilnadu, India.
4Ravi.S, Department of Electrical, Computer and Telecommunication Engineering, Botswana International University of Science and Technology, Botswana.
Manuscript received on January 05, 2020. | Revised Manuscript received on January 25, 2020. | Manuscript published on January 30, 2020. | PP: 5338-5345 | Volume-8 Issue-5, January 2020. | Retrieval Number: E6704018520/2020©BEIESP | DOI: 10.35940/ijrte.E6704.018520
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: This paper presents a non-isolated bidirectional soft-switching dc-dc converter for DC microgrid energy storage synchronization. To assist the soft switching of switches and diodes, the LCL resonant circuit is applied and an input end half-bridge boost converter is enforced. Using the voltage doubler circuit introduced on the output side, a voltage gain of 2X is achieved. Through the non-isolated circuit, the total voltage gain is obtained. The capacitive divider halves the voltage on the greater hand. The circuit performs a high frequency ripple of low output voltage. Diodes guarantee zero voltage Turn ON for switches and zero current turn ON and turn OFF during buck / boost operation Although no internal snubber circuits are available, the circuit ensures low voltage stress across semiconductor systems.
Keywords: Bidirectional Converter; DC Microgrid; Zero Current Switching; Buck-Boost Operation; Zero Voltage Switching.
Scope of the Article: Network Operations & Management.