Field-Based Model for Switched Reluctance Generators in Direct Drive Wind Energy Converters

2019 ◽  
Author(s):  
P. Lobato ◽  
J. A. Dente ◽  
A. J. Pires
Keyword(s):  
Wind Energy ◽  
Direct Drive ◽  
Switched Reluctance ◽  
Energy Converters

scholarly journals Recent Advances in Direct-Drive Power Take-Off (DDPTO) Systems for Wave Energy Converters Based on Switched Reluctance Machines (SRM)

2021 ◽  
pp. 487-532
Author(s):  
Marcos Blanco ◽  
Jorge Torres ◽  
Miguel Santos-Herrán ◽  
Luis García-Tabarés ◽  
Gustavo Navarro ◽  
...  
Keyword(s):  
Wave Energy ◽  
Control Strategies ◽  
Direct Drive ◽  
Drive Power ◽  
Switched Reluctance ◽  
Wave Energy Converters ◽  
Switched Reluctance Machines ◽  
Point Absorbers ◽  
The Waves ◽  
Energy Converters

AbstractThis chapter is focused on Power Take-Off (PTO) systems for wave energy converters (WEC), being one of the most important elements since PTOs are responsible to transform the mechanical power captured from the waves into electricity. It presents Direct-Drive PTO (DDPTO) as one of the most reliable solutions to be adapted to some particular types of WEC, such as point absorbers. A discussion about modularity and adaptability, together with intrinsic characteristics of direct-drive PTOs, is also included. Among the different technologies of electric machines that can be used in direct-drive linear PTOs, switched reluctance machines (SRM) are described in further detail. In particular, the Azimuthal Multi-translator SRM is presented as a suitable solution in order to increase power density and reduce costs. Not only the electric machine, but also the associated power electronics are described in detail. The description includes the different configurations and topologies of power converters and the most appropriate control strategies. Finally, a superconducting linear generator solution is described, presenting it as a reliable alternative for the application of direct-drive PTOs. An example of concept and preliminary design is included in order to highlight the main challenges to be faced during this process.

Research on Switched Reluctance Generator for Off-Grid Variable-Speed Wind Energy Applications

2010 ◽  
Vol 44-47 ◽  
pp. 1672-1676
Author(s):  
Jing Feng Mao ◽  
Guo Qing Wu ◽  
Ai Hua Wu ◽  
Xu Dong Zhang ◽  
Yang Cao ◽  
...  
Keyword(s):  
Wind Energy ◽  
Wind Turbine ◽  
Control Strategy ◽  
Test System ◽  
Variable Speed ◽  
Detailed Model ◽  
Switched Reluctance ◽  
Energy Applications ◽  
Variable Speed Wind Turbine ◽  
Model Control

This paper presents a theoretical analysis and experimental evaluation of the switched reluctance generator (SRG) for off-grid variable-speed wind energy applications. The detailed model, control parameters and operational characteristics of the SRG as well as variable-speed wind turbine are discussed. In order to drive the wind energy conversion system (WECS) to the point of maximum aerodynamic efficiency, a SRG power output feedback control strategy which optimized angle position-current chopping control cooperating PI regulator is proposed. The control strategy is also demonstrated by means of Matlab/Simulink. Moreover, an experimental test system is set up, which a cage induction machine is used to emulate the variable-speed wind turbine. The experimental results validate the proposed control strategy and confirm the SRG performance.

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