Application of Boost Converter to Increase the Speed Range of Dual-Stator Winding Induction Generator in Wind Power Systems

In this paper, a topology using a dual-stator winding induction generator (DWIG) and a boost converter is proposed for the variable speed wind power application. At low rotor speeds, the generator saturation limits the voltage of the DWIG. Using a boost converter, higher dc voltage can be produced w...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2018-11, Vol.33 (11), p.9599-9610
Main Authors: Kavousi, Ayoub, Fathi, Seyed Hamid, Milimonfared, Jafar, Soltani, Mohsen Nourbakhsh
Format: Article
Language:English
Subjects:
Boost converter
Circuits
control-winding voltage oriented (CWVO) control
Converters
dual-stator winding induction generator (DWIG)
Electric potential
Excitation
Induction generators
Maximum power tracking
Reactance
Stators
Topology
variable speed operation
Voltage control
Voltage converters (DC to DC)
Wind power
Wind power generation
Wind turbines
Winding
Windings
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Summary:In this paper, a topology using a dual-stator winding induction generator (DWIG) and a boost converter is proposed for the variable speed wind power application. At low rotor speeds, the generator saturation limits the voltage of the DWIG. Using a boost converter, higher dc voltage can be produced while the DWIG operates at maximum power point tracking even at low-speed and low-voltage conditions. Semiconductor excitation controller (SEC) of the DWIG utilizes control-winding voltage oriented control method to adjust the voltage, considering V / f characteristics. For the proposed topology, the SEC capacity and the excitation capacitor are optimized by analyzing the SEC reactive current considering wind turbine power-speed curve, V / f strategy, and the generator parameters. The method shows that the per-unit capacity of the SEC can be limited to the inverse of DWIG magnetizing reactance per-unit value. The topology is simulated in MATLAB/Simulink platform and experimented with a scaled 1 kW prototype. Both simulation and experimental results demonstrate wide variable speed operation range of the DWIG and verify the optimization.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2018.2797095