Control of switched reluctance generator in wind power system application for variable speeds IEEE Electrical Projects

ABSTRACT:

Switched reluctance generators (SRGs) come into prominence in other electrical machines with its simple structure, only stator winding, reliability, high fault tolerance and the possibility of working within wide speed range. These generators are used especially in wind power plants due to their ability to operate in variable speed range and applications of aviation and electric cars. In this study, the control of the SRG was performed. A simulation of SRG driver in Matlab/Simulink was performed and the real-time implementation control of SRG is carried out on DS1103 Ace kit digital signal processor to determine the performance of the SRG. The output voltage of the SRG is controlled by the proportional-integral (PI) voltage controller. As a result, the graphs of change in SRG phases currents and SRG output voltage were obtained according to different parameters. Simulation results compared with experimental results. Consequently, they overlap on experimental results.

KEYWORDS:

  1. Switched reluctance generator
  2. Wind power system

SOFTWARE: MATLAB/SIMULINK

BLOCK DIAGRAM:

Fig. 1. (a) Block diagram of SRG based WECS, (b) Mechanical power curves of the

wind turbine system.

EXPECTED SIMULATION RESULTS:

Fig. 2. The graph of the SRG’s phase currents obtained by (a) simulation, (b)

experimental (n = 1000 rpm, V = 30 V, hon = 15_, hoff = 30_).

Fig. 3. The graph of SRG’s phase currents obtained by (a) simulation, (b)

experimental (n = 1500 rpm, V = 15 V, hon = 15_, hoff = 30_).

Fig. 4. The graph of SRG’s phase currents obtained with by (a) simulation, (b)

experimental (n = 1500 rpm, V = 25 V, hon = 15_, hoff = 30_).

Fig. 5. The graph of the SRG’s phase currents obtained by (a) simulation, (b)

experimental (n = 1500 rpm, V = 30 V, hon = 15_, hoff = 30_).

Fig. 6. The graph of the SRG’s output voltage obtained by (a) simulation (b)

experimental (V = 15 V).

Fig. 7. The graph of the SRG’s output voltage obtained by (a) simulation (b)

experimental (V = 25 V).

Fig. 8. The graphs of the SRG’s output voltage obtained by (a) simulation (b)

experimental (V = 30 V).

Fig. 9. The graph of the current of phase A according to different (a) turn-off angles (hon = 15_), (b) turn-on angles (hoff = 30_).

CONCLUSION:

The output voltage of the SRG is controlled by using PI voltage controller and simulated by using Matlab/Simulink software in this study. DS 1103 Ace kit controller was used to obtain experimental results. It was proven that the simulation results are accurate when compared with the experimental results. In addition, the effect of the firing angles on phase currents of the SRG was investigated The results obtained in this study shows that changes in phase currents were affected by selecting the turn-on and the turn-off angle.

REFERENCES:

[1] Global Wind Energy Council, Global wind report 2019, March (2020). http:// www.gwec.net/

[2] Hasanien HM, Muyeen SM. Speed control of grid-connected switched reluctance generator driven by variable speed wind turbine using adaptive neural network controller. Electric Power Syst. Res. 2012;84(1):206–13.

[3] Neto PJS, Barros TAS, Paula MV, Souza RR, Filho ER. Design of computational experiment for performance optimization of a switched reluctance generator in wind systems. IEEE Trans. Energy Convers. 2018;33(1):406–19.

[4] Omaç Z, Kürüm H, Selçuk AH. Design, analysis and control of a switched reluctance motor having 18/12 poles. Fırat U. J. Sci. Eng. 2007;19:339–46.

[5] Omaç Z, Kürüm H, Selçuk AH. Digital current control of a switched reluctance motor. Int. J. Electr. and Power Eng. 2011;5:54–61.

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