Micro inverter with a front-end current-fed converter
Nayanasiri, D.R., Foo, Gilbert, Maskell, Douglas, & Vilathgamuwa, Mahinda (2014) Micro inverter with a front-end current-fed converter. In De Silva, A (Ed.) Proceedings of the 2014 7th International Conference on Information and Automation for Sustainability (ICIAfS), 22 - 24 December, 2014, Sri Lanka.
The reliability of micro inverters is an important factor as it would be necessary to reduce cost and maintenance of the small and medium scale distributed PV power conversion systems. Electrolytic capacitors and active power decouple circuits can be avoided in micro inverters with the use of
medium voltage DC-link. Such a DC-link based micro inverter is proposed with a front-end dual inductor current-fed push-pull converter. The primary side power switches of the front-end converter have reduced switching losses due to multi-resonant operation. In addition, the voltage and current stresses on the diodes of the secondary diode voltage doubler rectifier are reduced due to the presence of a series resonant circuit in the front-end converter. The operation of the proposed micro inverter is explained using an in-depth analysis of the switching characteristics of the power semiconductor devices. The theoretical analysis of the proposed micro inverter is validated using simulation result.
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|Item Type:||Conference Paper|
|Divisions:||Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Deposited On:||13 Oct 2015 04:43|
|Last Modified:||13 Oct 2015 04:43|
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