International Journal of Engineering Research

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Bi directional Transformer less Inverter using Interleaved Modulation


Affiliations
1 Electrical and Electronics Engineering, Anna University, Sri Sairam Engineering College, West Tambaram, Chennai-600044, Tamilnadu, India
 

A new transformer less Photo voltaic inverter with bidirectional capability has been developed where the concept of High Frequency Leg (HFL) is used. This allows the use of high switching frequency which reduces the size of the filter elements. As the number of legs is increased, the power handling capacity of the inverter is increased and the inductor current ripple is reduced. The bi directional feature of this inverter has made it more attractive for PV applications.

Keywords

Basic Switching Cells, Photovoltaic Inverters without Isolation Transformer, Bidirectional Power Flow, High Frequency Leg.
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  • Bi directional Transformer less Inverter using Interleaved Modulation

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Authors

W. Princy
Electrical and Electronics Engineering, Anna University, Sri Sairam Engineering College, West Tambaram, Chennai-600044, Tamilnadu, India
T. Porselvi
Electrical and Electronics Engineering, Anna University, Sri Sairam Engineering College, West Tambaram, Chennai-600044, Tamilnadu, India

Abstract


A new transformer less Photo voltaic inverter with bidirectional capability has been developed where the concept of High Frequency Leg (HFL) is used. This allows the use of high switching frequency which reduces the size of the filter elements. As the number of legs is increased, the power handling capacity of the inverter is increased and the inductor current ripple is reduced. The bi directional feature of this inverter has made it more attractive for PV applications.

Keywords


Basic Switching Cells, Photovoltaic Inverters without Isolation Transformer, Bidirectional Power Flow, High Frequency Leg.