Design of a robust grid interface system for PMSG-based wind turbine generators
Zhang, Shao, Tseng, King-Jet, Vilathgamuwa, D. Mahinda, Nguyen, Trong Duy, & Wang, Xiao-Yu (2011) Design of a robust grid interface system for PMSG-based wind turbine generators. IEEE Transactions on Industrial Electronics, 58(1), pp. 316-328.
A robust and reliable grid power interface system for wind turbines using a permanent-magnet synchronous generator (PMSG) is proposed in this paper, where an integration of a generator-side three-switch buck-type rectifier and a grid-side Z-source inverter is employed as a bridge between the generator and the grid. The modulation strategy for the proposed topology is developed from space-vector modulation and Z-source network operation principles. Two PMSG control methods, namely, unity-power-factor control and rotor-flux-orientation control (Id = 0), are studied to establish an optimized control scheme for the generator-side three-switch buck-type rectifier. The system control scheme decouples active- and reactive-power control through voltage-oriented control and optimizes PMSG control for the grid- and generator-side converters independently. Maximum power point tracking is implemented by adjusting the shoot-through duty cycles of the Z-source network. The design considerations of the passive components are also provided. The performances and practicalities of the designed architecture have been verified by simulations and experiments.
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|Item Type:||Journal Article|
|Keywords:||Permanent-magnet synchronous generator (PMSG), Z-source inverter, Rectifier, Wind generation|
|Divisions:||Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||© 2011 Institute of Electrical and Electronics Engineers|
|Deposited On:||03 Jun 2014 05:18|
|Last Modified:||13 Jun 2014 01:27|
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