Please use this identifier to cite or link to this item: http://hdl.handle.net/10603/123015
Title: Analysis and mitigation of leakage current and dc injection in transformerless pv inverter topologies
Researcher: Anjali Varghese C
Guide(s): Alwarsamy T
Keywords: Electrical Engineering
Inverter
Inverter Topologies
Leakage Current
Mitigation
University: Anna University
Completed Date: 01/01/2015
Abstract: The solar panel efficiency is still a major hindrance in the popularity of solar PV systems Considering the 10 15 efficiency of commercially available solar panels the reliability and efficiency of the power electronic interface should be ensured Initially residential PV systems used low frequency transformer between the inverter and grid The low frequency transformers are bulky and increased the weight size and cost of the system An alternative was the use of high frequency transformers between DC DC conversion stages but even though the issue of weight size and cost was reduced the overall system complexity increased There was no significant improvement in system efficiency with high frequency transformers From 1995 the use of transformerless inverters was encouraged Countries like Germany changed their regulations to incorporate the use of transformerless inverters Due to the advancements in technology transformerless inverters are gaining a lot of importance in PV market By avoiding the transformer in the output of PV inverter cost can be reduced by 25 and efficiency can be increased by 2 Also the size weight and system complexity can be reduced When there is no transformer connected between the PV inverter output and the grid the problems of leakage current and DC injection creep up newline
Pagination: xxi, 140p.
URI: http://hdl.handle.net/10603/123015
Appears in Departments:Faculty of Electrical Engineering

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01_title.pdfAttached File66.51 kBAdobe PDFView/Open
02_certificates.pdf527.46 kBAdobe PDFView/Open
03_abstracts.pdf55.55 kBAdobe PDFView/Open
04_acknowledgement.pdf48.22 kBAdobe PDFView/Open
05_contents.pdf110.11 kBAdobe PDFView/Open
06_chapter1.pdf249.82 kBAdobe PDFView/Open
07_chapter2.pdf276.31 kBAdobe PDFView/Open
08_chapter3.pdf1.6 MBAdobe PDFView/Open
09_chapter4.pdf849.64 kBAdobe PDFView/Open
10_chapter5.pdf939.92 kBAdobe PDFView/Open
11__conclusion.pdf457.67 kBAdobe PDFView/Open
12_references.pdf230.89 kBAdobe PDFView/Open
13_list_of_publications.pdf274.39 kBAdobe PDFView/Open


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