Abstract
In this paper an analysis and real time implementation
of unity power factor correction converter (PFC) based on fuzzy logic
controller is studied. A single phase AC–DC boost converter is realized to
replace the conventional diode bridge rectifier. Fuzzy logic and hysteresis
control techniques is implemented to improve the performance of the boost
converter. The fuzzy controller is applied to DC voltage loop circuit to get
better performance. The current loop is being controlled by using a PI, and
hysteresis controllers. The robustness of the controller is verified via
MATLAB/Simulink, the results show that the fuzzy controller gives well
controller. An experiment test is implemented via a test bench based on dSPACE
1103. The experimental results show that the proposed controller enhanced the
performance of the converter under different parameters variations.
Keywords
1.
Power factor
correction (PFC)
2.
PLL
3.
Fuzzy logic controller (FLC)
4.
Hysteresis controller
5.
DSPACE 1103
Software: MATLAB/SIMULINK
Circuit Diagram:
Fig. 1. Single phase PFC boost converter
control system
Expected Simulation
Results
Fig.2. Diode Bridge input
current
Fig.3. Line Current and its
harmonic spectrum using the fuzzy controller for
DC bus
\
Fig.4. DC bus voltage based
on fuzzy controller
Fig.5. PFC input current
Conclusion:
In this paper, a single-phase PFC converter DC voltage loop has
been analysed. The fuzzy logic controller technique is implemented to improve
the performance of the PFC converter, it is robust and efficient.
Matlab/Simulink has been used to simulate the proposed techniques with
successful result, the dSPACE 1103 have been used to implement the fuzzy controller
in real-time. Simulation results have been presented and confirmed by the real
time tests; in the same time, high efficiency is obtained. The proposed
controller applied to the unity power factor give better results, a reduced
harmonic distortion, and robustness control during parameter variations.
References
[1] M. Malinowski, M. Jasinski, M.P. Kazmierkowski, “Simple direct
power control of three-phase PWM rectifier using space-vector modulation
(DPCSVM)”, IEEE Transactions on Industrial Electronics (2004) 447–454
[2] Masashi O., Hirofumi M. “An AC/DC Converter with High Power
Factor”, IEEE Transaction on Industrial Electronics, 2003, Vol 50, No. 2, pp.
356–361.
[3] Kessal A, Rahmani L, Gaubert JP, Mostefai M. “Analysis and
design of an isolated single-phase power factor corrector with a fast
regulation”. Electr Power Syst Res 2011; 81:1825–31.
[4] Guo L, Hung JY, Nelms RM. “Comparative evaluation of sliding
mode fuzzy controller and PID controller for a boost converter.” Electr Power
Syst Res 2011; 81:99–106.
[5] Kessal A, Rahmani L, Gaubert JP, Mostefai M. “Experimental
design of a fuzzy controller for improving power factor of boost rectifier”.
Int J Electron 2012;99 (12):1611–21.
