alexa A Single Phase Grid Connected Converter for Renewable
ISSN ONLINE(2278-8875) PRINT (2320-3765)

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering
Open Access

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Research Article

A Single Phase Grid Connected Converter for Renewable Energy Distributed Systems

S. Srinivas1, N. Kiran Kumar2, M. Satyanarayana3
  1. Student, Department of EEE, Vaageswari College of Engineering, Karimnagar, Telangana, India
  2. Asst. professor, Department of EEE, Vaageswari College of Engineering, Karimnagar, Telangana, India
  3. Research Assistant, Department of Electrical Engineering, Hyderabad, Telangana, India
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Abstract

In low power renewable systems, a single phase grid-connected converter is usually adopted. This paper deals with a novel five-level converter topology that follows this trend. A review of the state of the art of the five-level topologies and a theoretical power loss comparison with the proposed solution is realized. The proposed converter architecture is based on a full-bridge topology with two additional power switches and two diodes connected to the midpoint of the dc link. Since the two added levels are obtained by the discharge of the two capacitors of the dc link, the balancing of the midpoint voltage is obtained with a specific pulse width modulation (PWM) strategy. Simulation results carried on MATLAB/SIMULINK model design show the effectiveness of the proposed solution.

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