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/
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Paula MV, Souza RR, Filho ER. Design of computational experiment for
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AH. Design, analysis and control of a switched reluctance motor having 18/12
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