Simulation and experimental comparative analysis of the DC-DC converter topologies for wind driven SEIG fed DC nanogrid

[Display omitted] •A wind energy conversion system based DC nanogrid topology is proposed.•Comparative analysis of different types of DC-DC converter in intermediate stage is carried out.•A laboratory scale prototype of SEIG based WECS is developed and tested under dynamic conditions. Wind energy co...

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Bibliographic Details
Published in:Electric power systems research 2020-04, Vol.181, p.106196, Article 106196
Main Authors: Kumar, Saurabh, K, Vijayakumar
Format: Article
Language:English
Subjects:
DBR
DC nanogrid
DC-DC converter
Diodes
Electricity distribution
Electronic switching systems
Energy conversion
Induction generators
Maximum power tracking
Rectifiers
SEIG
Simulation
Smart grid technology
Spectrum analysis
Stability
Switches
Topology
Voltage converters (DC to DC)
Wind energy conversion system
Wind power
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Summary:[Display omitted] •A wind energy conversion system based DC nanogrid topology is proposed.•Comparative analysis of different types of DC-DC converter in intermediate stage is carried out.•A laboratory scale prototype of SEIG based WECS is developed and tested under dynamic conditions. Wind energy conversion system (WECS) based DC nanogrid topology is proposed in this paper. The WECS topology is based on self-excited induction generator (SEIG) which is cost effective, and has rugged construction and combination of diode bridge rectifier (DBR) with DC-DC converter to implement the maximum power point tracking technique. The combination of diode DBR with DC-DC converter allows simple control structure due to one controllable switch as compared to complex control in the conventional controlled/semi-controlled rectifier with six controllable switches. Further, proposed DC nanogrid topology enhances the SEIG efficiency due to the reduction of harmonic injection on machine side from DBR implementation. The detailed harmonic spectrum analysis is carried out by developing the laboratory scale prototype of DBR based SEIG topology for WECS to justify the selection of DBR instead of the controlled rectifier. Further, to analyze the effect of different types DC-DC converter to make combination with the DBR. Afterwards, the dynamic performance of the proposed DC nanogrid topology is analyzed to understand the selection of the DC-DC converter with DBR for different DC grid voltage conditions.
ISSN:0378-7796
1873-2046
DOI:10.1016/j.epsr.2020.106196