REACTIVE POWER COMPENSATION BASED OPTIMIZATION OF MICRO-SCALE STAND-ALONE PHOTOVOLTAIC SYSTEMS

Abstract

Inductive loads demand reactive power that does not turn into useful energy from the energy source, adversely affects system components, and releases excessive thermal energy. The control of the power factor (cos φ) decreases the negative effect of reactive power in the system by performing reactive power compensation (RPC). In this study, RPC is applied to a Photovoltaic (PV) system to increase the overall system. The designed system's main components' mathematical modeling and performance simulations are made using MATLAB codes and Simulink modellings. Simulation-based performance data were compared with the data obtained from the experimental setup. As a result of the study, the system's current-carrying capacity (CCC) is increased, a reduction in thermal energy is obtained; therefore, the system performance is optimized.

Keywords

• Reactive Power Compensation (RPC)
• current-carrying capacity (CCC)
• system efficiency
• performance optimization
• PV System

References

1. Vidyanandan, K.V., ‘'An Overview of Factors Affecting the Performance of Solar PV Systems", Energy Scan, A house journal of Corporate Planning, NTPC Ltd., issue 27, Feb.2017, pp.2-8.
2. Huang B-J., Huang Y-C., Chen G-Y., Hsu P-C., Li K., 'Improving PV Solar System Efficiency Using One-Axis 3 Position Sun Tracking", PV Asia Conference, Energy Procedia 33, 2012, p. 281.
3. Serhan M. and El-Chaar L., 'Two Axes Sun Tracking System: Comparison with a Fixed System.", International Conference on Renewable Energy and Power Quality (ICREPQ'10), 2010.
4. Heidari M., 'Improving Efficiency of PV System by Using Neural Network MPPT and Predictive Control of Converter", International Journal of Renewable Energy Research, Vol 6, No 4, 2016.
5. Abdolzadeh M., Ameri M., 'Improving the Effectiveness of a PV Water Pumping System by Spraying Water over the Front of PV Cells", Renewable Energy, Vol. 34, 2009, pp.91-96.
6. Boztepe M., Factors affecting efficiency in PV, EMO IV. Energy Efficiency Days in, emo.org.tr, 2017.
7. Terki, A. Moussi, A. Betka A., Terki N., "An improved efficiency of fuzzy logic control of PMBLDC for PV pumping system", Applied Mathematical Modelling Vol. 36, 2012, pp.934–944.
8. Wong L.K., Leung F.H.F., Tam P.K.S., "Stability analysis of fuzzy logic control systems", Electronic Letters Vol.36(12), 2000, pp.1085-1086.

9. Akbaba, M., "Dynamic Performance of a photovoltaic boost converter powered DC Motors-pump system", In; Proceeding of IEEE International Conference, IEMDC'99, 1999, pp.1–6.
10. Appelbaum, J., "Starting and Steady-State Characteristics of DC Motor Powered by Solar Cell Generator", IEEE Trans Energy Conv No. 1 (1986), pp.17–25.
11. Appelbaum, J., Sarme, M.S., "The Operation of Permanent Magnet DC Motor Powered by Common Source of Solar Cells", IEEE Trans Energy Conv No. 4 (1989), pp.635–642.
12. Makhlouf M., Messai F., Benalla H., "Vectorial Command of Induction Motor Pumping System Supplied by a Photovoltaic Generator", Journal of Electrical Engineering, Vol. 62, No.1, 2011, pp.3-10.
13. BAHT, SR et al., "Performance Optimisation of Induction Motor-Pump using Photovoltaic Energy Source", IEEE Trans Ind App 23 No. 6 (1987), pp.995–1000.
14. Siddalinga. S. Nuchhi, Raghavendra. B. Sali, Dr. Shekhappa G. Ankaliki, "Effect of Reactive Power Compensation on Voltage Profile", International Journal of Engineering Research & Technology (IJERT)ISSN: 2278-0181www.ijert.org Vol. 2 Issue 6, 2013.
15. Ganiyu A. A., Olawale O. O., "Research Article; Effect of Reactive Power Flow on Transmission Efficiency and Power Factor", International Journal of Recent Scientific Research, Vol.6, Issue 7, 2015, pp.5249-5253,
16. Choi J.Y, Rim S., Park J., "Optimal real-time pricing of real and reactive powers", IEEE Transactions on power systems, Vol.13, No 4, 1998, pp.1226-1231.
17. Kahn E., Baldick R., "Reactive power is a cheap constraint", The Energy Journal, Vol.15, No 4, 1994, pp.191- 201.
18. Marsteller G.F., "Analytical notes on the economics of power factor correction, Journal of the Institution of Electrical Engineers, Vol.6, No.6, pp.975-983, 2008.
19. Ikegami T., Maezono T., Nakanishi F., Yamagata Y., "Estimation of equivalent circuit parameters of PV module and its application to optimal operation of PV system", Solar Energy Materials & Solar Cells 67, 2001, pp.389-395.
20. Wengerkievs C.A.C., Elias R.d. A., Batistela N.J., Sadowski N., Kuo-Peng P., Lima S.C., Pedro A. D Silva, Beltrame AY, "Estimation of Three-Phase Induction Motor Equivalent Circuit Parameters from Manufacturer Catalog Data", Journal of Microwaves, Optoelectronics and Electromagnetic Applications, Vol. 16, No. 1, March 2017.
21. Lionginas L., "Compensation of Reactive Power of AC Catenary System", 10th International Scientific Conference Transbaltica 2017: Transportation Science and Technology, Procedia Engineering 187, 2017, pp.185-197.
22. Darwish E.M., Hasanien H.M., Atallah A., El-Debeiky S., "Reactive power control of three-phase low voltage system based on voltage to increase PV penetration levels", Ain Shams Engineering Journal, Vol.9, Issue 4, 2018, pp.1831-1837.
23. https://uk.mathworks.com/help/matlab/standard-file-formats.html (access date: 13.02.2010)
24. Fara L., Craciunescu D., "Output Analysis of Stand-Alone PV Systems: Modelling, Simulation, and Control", Sustainable Solutions for Energy and Environment, EENVIRO, Energy Procedia-112, 2017, pp.595-605.