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Evaluation of integrated inverter topologies for low power PV systems

Author(s): Junior, Luigi G. ; De Brito, Moacyr A. G. ; Sampaio, Leonardo P. ; Canesin, Carlos A. [UNESP]

Date: 2014

Persistent ID: http://hdl.handle.net/11449/72760

Origin: Oasisbr

Subject(s): Low-Power Inverters; Photovoltaic Modules; Single-phase Solar Inverters; Stage Integration; Galvanic isolation; Grid-connected; Integrated converters; Integrated inverter; Integrated structure; Inverter stage; Low Power; Output voltages; Photovoltaic modules; Power electronics converters; PV system; Rated voltages; Single-phase inverters; Solar inverter; Solar photovoltaics; Suitable solutions; Electric inverters; Energy resources; High frequency transformers; Photovoltaic effects; Power electronics; Solar energy; Solar power generation; Topology; Integration; Low-Power Inverters; Low-Power Inverters; Photovoltaic Modules; Photovoltaic Modules; Single-phase Solar Inverters; Single-phase Solar Inverters; Stage Integration; Stage Integration; Galvanic isolation; Galvanic isolation; Grid-connected; Grid-connected; Integrated converters; Integrated converters; Integrated inverter; Integrated inverter; Integrated structure; Integrated structure; Inverter stage; Inverter stage; Low Power; Low Power; Output voltages; Output voltages; Photovoltaic modules; Photovoltaic modules; Power electronics converters; Power electronics converters; PV system; PV system; Rated voltages; Rated voltages; Single-phase inverters; Single-phase inverters; Solar inverter; Solar inverter; Solar photovoltaics; Solar photovoltaics; Suitable solutions; Suitable solutions; Electric inverters; Electric inverters; Energy resources; Energy resources; High frequency transformers; High frequency transformers; Photovoltaic effects; Photovoltaic effects; Power electronics; Power electronics; Solar energy; Solar energy; Solar power generation; Solar power generation; Topology; Topology; Integration; Integration

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Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:26:06Z No. of bitstreams: 0

Made available in DSpace on 2014-05-27T11:26:06Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-10-31

This work presents the stage integration in power electronics converters as a suitable solution for solar photovoltaic inverters. The rated voltages available in Photovoltaic (PV) modules have usually low values for applications such as regulated output voltages in stand-alone or grid-connected configurations. In these cases, a boost stage or a transformer will be necessary. Transformers have low efficiencies, heavy weights and have been used only when galvanic isolation is mandatory. Furthermore, high-frequency transformers increase the converter complexity. Therefore, the most usual topologies use a boost stage and one inverter stage cascaded. However, the complexity, size, weight, cost and lifetime might be improved considering the integration of both stages. These are the expected features to turn attractive this kind of integrated structures. Therefore, some integrated converters are analyzed and compared in this paper in order to support future evaluations and trends for low power single-phase inverters for PV systems. © 2011 IEEE.

São Paulo State University - UNESP Power Electronics Laboratory Electrical Engineering Department, Av. Prof. José Carlos Rossi, 1370, 15385-000, Ilha Solteira, SP

Document Type Other
Language English

Document details

Evaluation of integrated inverter topologies for low power PV systems

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