ABSTRACT:
Since last decade, due to
advancement in technology and increasing in the electrical loads and also due
to complexity of the devices the quality of power distribution is decreases. A
Power quality issue is nothing but distortions in current, voltage and frequency
that affect the end user equipment or disoperation; these are main problems of
power quality so compensation for these problems by DPFC is presented in this
paper. The control circuits for DPFC are designed by using line currents,
series reference voltages and these are controlled by conventional ANN
controllers. The results are observed by MATLAB/SIMULINK model.
KEYWORDS:
1.
Power Quality
2.
Voltage Sag
3.
DPFC
4.
Voltage Swell
SOFTWARE: MATLAB/SIMULINK
BLOCK DIAGRAM:
Figure 1: Schematic Diagram for DPFC
EXPECTED SIMULATION RESULTS:
Figure 2:
Output Voltage during fault condition
Figure 3:
Output Current during Fault Condition
Figure 4: Output voltage compensated by DPFC Controller
Figure 5:
Compensated Output Current by DPFC Controller
Figure 6: Active and Reactive Power
Figure 7: THD value of system output voltage without
DPFC
Figure 8: THD value of DPFC (pi controller) load Voltage
Figure 9: THD for output voltage under ANN Controller
CONCLUSION:
In this paper we implemented a concept to controlling
the power quality issues i.e. DPFC. The proposed theory of this device is mathematical
formulation and analysis of voltage dips and their mitigations for a three
phase source with linear load. In this paper we also proposed a concept of Ann
controller for better controlling action. As compared to all other facts
devices the DPFC based ANN has effectively control all power quality problems
and with this technique we get the THD as 3.65% and finally the simulation
results are shown above.
REFERENCES:
1. Ahmad Jamshidi, S.Masoud Barakati, and M.Moradi Ghahderijani
presented a paper on “Impact of Distributed Power Flow Controller to Improve
Power Quality Based on Synchronous Reference Frame Method” at IACSIT
International Journal of Engineering and Technology, Vol. 4, No. 5, October 2012.
2. Ahmad Jamshidi, S.Masoud Barakati, and Mohammad Moradi
Ghahderijani posted a paper “Power Quality Improvement and Mitigation Case
Study Using Distributed Power Flow Controller” on 978-1-4673-0158-9/12/$31.00 ©2012
IEEE.
3. Srinivasarao, Budi, G. Sreenivasan, and Swathi
Sharma. "Comparison of Facts Controller for Power Quality Problems in Power
System", Indian Journal of Science and Technology, 2015.
4. J.R.Enslin, “Power mitigation problems,” in Proc.
IEEE Int. Symp. Industrial Electronics (ISIE ’98), vol. 1, 1998, pp. 8– 20.
5. Srinivasarao, Budi, G. Sreenivasan, and Swathi
Sharma. "Mitigation of voltage sag for power quality improvement using DPFC
system", 2015 International Conference on Electrical Electronics Signals
Communication and Optimization (EESCO), 2015.
