Efficiency and cost optimization of a micro-inverter transformer

Güvengir, Umut; Deniz, Mustafa; Alotaibi, Zaid; Alzahrani, Saeed; Shafei, Hisham Y.; Almokaiteeb, Omar A.; Alanazi, Fahd Saud; Altuwaijry, Abdullah A.

doi:10.1109/powereng.2013.6635741

Cited by 1 publication

(1 citation statement)

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“…The total loss of the transformer can now be calculated which is the sum of copper loss and the core loss of a transformer. Moreover, in [27], a more detailed analysis and loss calculation is discussed. With considering (14)-(29), we have Efficiency(%) = P Out P Out + P Loss × 100 (30) Fig.…”

Section: Transformer Lossesmentioning

confidence: 99%

Symmetric and asymmetric transformer based cascaded multilevel inverter with minimum number of components

Farakhor

Ahrabi

Ardi

et al. 2015

IET Power Electronics

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In this study, a novel transformer based cascaded multilevel inverter is presented. The proposed inverter can operate in both symmetric and asymmetric topologies. The presented inverter benefits from the advantages such as reduced number of power switches and reduced total peak inverse voltage of the switching components. The numbers of insulated gate driver circuits are also decreased with respect to the power switches. Furthermore, the presented topology requires just a single DC source. In addition, the numbers of on-state switches in the current paths are reduced. Therefore the voltage drops across the switches are mitigated and as a result the efficiency of the presented inverter is improved. The mentioned advantages cause the implementation cost to be reduced. The operation of the converter is discussed thoroughly for both symmetric and asymmetric operations. The feasibility of the presented inverter topology is validated using the simulation results. Experimental results under 1.5 kW are also added to justify the theoretical analyses.

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Section: Transformer Lossesmentioning

confidence: 99%