Modified Multi Input Multilevel DC-DC Boost Converter for Hybrid Energy Systems
Ram Prakash Ponraj1, Devadharshini Ganeshprabhu2, Haripriya Balaji3, Hemadharshini Ganesan4, Keerthana Dhanabalan5
1Ram Prakash Ponraj*, is currently working as Assistant Professor in Department of Electrical and Electronics Engineering in Saranathan College of Engineering, Tiruchirapalli, India.
2Devadharshini Ganeshprabhu, is currently pursuing her Bachelor degree in Electrical and Electronics Engineering in Saranathan College of Engineering, Tiruchirapalli, India.
3Haripriya Balaji, is currently pursuing her Bachelor degree in Electrical and Electronics Engineering in Saranathan College of Engineering, Tiruchirapalli, India.
4Hemadharshini Ganesan, is currently pursuing her Bachelor degree in Electrical and Electronics Engineering in Saranathan College of Engineering, Tiruchirapalli, India.
5Keerthana Dhanabalan, is currently pursuing her Bachelor degree in Electrical and Electronics Engineering in Saranathan College of Engineering, Tiruchirapalli, India.
Manuscript received on March 30, 2020. | Revised Manuscript received on April 12, 2020. | Manuscript published on April 30, 2020. | PP: 1067-1072| Volume-9 Issue-4, April 2020. | Retrieval Number: D7854049420/2020©BEIESP | DOI: 10.35940/ijeat.D7854.049420
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Abstract: DC-DC converters are playing an important role in designing of Electric Vehicles, integration of solar cells and other DC applications. Contemporary high power applications use multilevel converters that have multi stage outputs for integrating low voltage sources. Conventional DC-DC converters use single source and have complex structure while using for Hybrid Energy Systems. This paper proposes a multi-input, multi-output DC-DC converter to produce constant output voltage at different input voltage conditions. This topology is best suitable for hybrid power systems where the output voltage is variable due to environmental conditions. It reduces the requirement of magnetic components in the circuit and also reduces the switching losses. The proposed topology has two parts namely multi-input boost converter and level-balancing circuit. Boost converter increases the input voltage and Level Balancing Circuit produce Multi output. Equal values of capacitors are used in Level Balancing Circuit to ensure the constant output voltage at all output stages. The operating modes of each part are given and the design parameters of each part are calculated. Performance of the proposed topology is verified using MATLAB/Simulink simulation which shows the correctness of the analytical approach. Hardware is also presented to evaluate the simulation results.
Keywords: DC-DC converter, Multi input Multi output (MIMO), PWM technique, wide-input range, level-balancing, hybrid energy systems