Abstract
In this paper, a new power control system for wind turbines based on a squirrel cage induction generator linked to the mains by means of a back-to-back converter for smart grid applications is proposed. The wireless system employs orthogonal frequency division multiplexing, convolutional coding, and functionally weighted moving average filtering to improve the system performance against the errors due to the propagation channel in the transmitted power references. Hence, the system avoids damages in turbines and converters and also increases the power quality of the power injected into the grid. Hence, the reactive power injection can be helpful in ancillary services. The system was analyzed regarding the total harmonic distortion for SCIGs’ currents and the system response to verifying the delivered power quality by the generator to the mains. The simulated results validate the proposed wireless-coded control system.
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Appendix
Appendix
1.1 SCIG Parameters
\(R_s = 1\)\(\Omega \); \(R_r = 3.13 \)\(\Omega \); \(L_m = 191.7\) mH; \(L_{ls}=L_{lr}=200\) mH; \(PP = 2\); \(PN=3.7\) kVA; \(V_N=220\) V. \(fn = 60\) Hz;
1.2 Converter Parameters
\(L=32\) mH; \(C=1.25\) mF.
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Sguarezi Filho, A.J., Solís-Chaves, J.S., de Almeida, L.A.L. et al. A Wireless OFDM Control System of SCIG for Applications in Smart Grids Jointly Employing Convolutional Coding and FWMA Filtering. J Control Autom Electr Syst 30, 360–370 (2019). https://doi.org/10.1007/s40313-019-00452-3
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DOI: https://doi.org/10.1007/s40313-019-00452-3