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.
