A Low Cost Front-End Converter With Maximum Power per Ampere for Rooftop Wind Turbines

Small Permanent Magnet Synchronous Generators (PMSGs) are widely used in small rooftop wind turbines. In order to inject the electric power generated by the PMSG, into the grid, a back-to-back AC/DC/AC converter is required. In this paper, a low cost with high efficiency converter is proposed for th...

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Bibliographic Details
Published in:IEEE access 2021, Vol.9, p.131236-131244
Main Authors: Alemi-Rostami, Mehdi, Rezazadeh, Ghasem, Tahami, Farzad, Ravanji, Mohammad Hasan
Format: Article
Language:English
Subjects:
Conduction losses
Control methods
Converters
Costs
Electric power grids
Generators
Inductance
Low cost
Maximum power
Micro wind generation
permanent magnet synchronous generator (PMSG)
Permanent magnets
power factor correction (PFC)
Reactance
Rectifiers
single-ended primary inductor converter (SEPIC)
Switches
Wind power generation
Wind turbines
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Summary:Small Permanent Magnet Synchronous Generators (PMSGs) are widely used in small rooftop wind turbines. In order to inject the electric power generated by the PMSG, into the grid, a back-to-back AC/DC/AC converter is required. In this paper, a low cost with high efficiency converter is proposed for the rectifier stage to obtain the maximum power per ampere of PMSG. This structure based on Discontinuous Conduction Mode Single-Ended Primary Inductor Converter (DCM SEPIC) with a single power electronic switch, proposes a converter which is cost-effective and suitable for the small wind turbine used in residential applications. Furthermore, other advantages of the proposed converter include obtaining maximum power delivered per ampere using a simple control method and reducing the size of converter inductive filter by exploiting the PMSG internal synchronous reactance as part of the filter. Unlike the conventional DCM Boost rectifiers, the proposed converter has a continuous input current, which results in lower PMSG conduction loss. Operation principles and various operating modes of this converter are discussed in detail in this paper and verified by closed-loop simulation and experimental results for a 500W/200V prototype.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2021.3115045