A NOVEL POWER CONVERTER FED BY PHOTOVOLTAIC SOURCE EMPLOYING IMPROVED INCREMENTAL CONDUCTANCE ALGORITHM UNDER PARTIAL SHADOW CONDITIONS
Keywords:
Photovoltaic System, High gain dc-dc converter, Maximum power point tracking, Improved incremental conductance algorithmAbstract
Photovoltaic (PV) self-consumption is becoming an important aspect of storing and deferring energy generated from distributed solar energy systems. This paper investigates a novel high-gain DC-DC converter for extraction of maximum power from the solar PV system by employing both Incremental Conductance (I&C) and Improved Incremental Conductance (IIC) based on Maximum Power Point Tracking (MPPT) techniques under partial shadow conditions. This proposed converter achieves high step-up voltage gain using voltage doublers and improves the efficiency of the system with low voltage stress on the switch, reduced reverse recovery of diodes, and less duty cycle operation. It avoids the converter operation at extreme duty cycles. The simulation responses to the work have been simulated using a Matlab-Simulink environment and the obtained results are validated through an experimental prototype.
References
(1) C. Huang-Jen, Y. Chun-Jen, L. Yu-Kang, A dc/dc converter topology for renewable energy systems, Int. J. Circ. Theor. Appl., 37, 3, pp. 485–495 (2009).
(2) W. Li, X. He, Review of non-isolated high-step-up dc-dc converters in photovoltaic grid-connected applications, IEEE Trans. Ind. Electron., 58, 4, pp. 1239–1250 (2011).
(3) F. Tofoli, D. de Souza Oliveira, R. Torrico-Bascope, Y. Alcazar, Novel nonisolated high-voltage gain dc-dc converters based on 3SSC and VMC, IEEE Trans. Power Electron., 27, 9, pp. 3897–3907 (2012).
(4) B. Axelrod, Y. Berkovich, A. Ioinovici, Switched capacitor/switched-inductor structures for getting transformerless hybrid dc-dc PWM converters, IEEE Trans. Circuits System, 55, 2, pp. 687-696 (2008).
(5) C-L. Chen, Y. Wang, J-S. Lai, Y-S. Lee, D. Martin, Design of parallel inverters for smooth mode transfer microgrid applications, IEEE Trans. Power Electronics, 25, 1, pp. 6–15 (2010).
(6) G. Silveira, F. Tofoli, L. Bezerra, R. Torrico-Bascope, A non-isolated dc-dc boost converter with high voltage gain and balanced output voltage, IEEE Trans. Ind. Electron., 61, 12, pp. 6739–6746 (2014).
(7) Z. Guo, D. Sha, X. Liao, J. Luo, Input-series-output-parallel phase shift full bridge derived dc-dc converters with auxiliary LC networks to achieve wide zero voltage switching range, IEEE Trans. Power Electron., 29, 10, pp. 5081–5086 (2014).
(8) J. Javad, Design of a ZVS PWM dc-dc converter for high gain applications, Int. J. Circ. Theor. Appl., 44, 5, pp. 995-997 (2016).
(9) N. Vinh, P. Pierret, A. Michel, S. Chafic, C. Jean-Pierre, Efficiency of magnetic coupled boost dc-dc converters mainly dedicated to renewable energy systems: influence of the coupling factor, Int. J. Circ. Theor. Appl., 43, 8, pp. 1042-1062 (2015).
(10) D. Aranzazu, R. Martin Jesus, Vazquez, Backstepping controller design to track maximum power in photovoltaic systems, Automatika, 55, 1, pp. 22-31 (2014).
(11) P. Giovanni, S. Giovanni, V. Massimo, Distributed maximum power point tracking: challenges and commercial solutions, Automatika, 53, 2, pp. 128-141 (2012).
(12) R. Arulmurugan, T. Venkatesan, Research and Experimental Implementation of a CV-FOINC algorithm using MPPT for PV power system, Journal of Electrical Engineering Technology, 10, pp. 1389-1399 (2015).
(13) A. Mohammed, Elgendy, Z. Bashar, J. David, Atkinson, Assessment of perturb and observe MPPT algorithm implementation techniques for PV pumping applications, IEEE Transactions on Sustainable Energy, 3, 1, pp. 21-33 (2012).
(14) A. Al-Gizi, A. Craciunescu, M.A. Fadel, M. Louzazni, A new hybrid algorithm for photovoltaic maximum power point tracking under partial shading conditions, Rev. Roum. Sci. Techn.– Électrotechn. et Énerg. 63, 1, pp. 52–57 (2018).
(15) P.S. Sikder, P. Nital, Incremental conductance-based maximum power point tracking controller using different buck-boost converter for solar photovoltaic system, Rev. Roum. Sci. Techn.–Électrotechn. et Énerg, 62, 3, pp. 269–275 (2017).
(16) A. Chitra, S.R.M., Palackal, K. Greeshma, N. Vishwanathan, I. Nambiar, An incremental conductance-based maximum power point tracking algorithm for a solar photovoltaic system, International Journal of Applied Engineering Research, 8, 19, pp. 2299-2302 (2013).
(17) X. Hu, C. Gong, A high voltage gain DC-DC converter integrating coupled-inductor and diode-capacitor techniques, IEEE Transactions on Power Electronics, 29, 2, pp. 789–800 (2014).
(18) T-J. Liang, J-H. Lee, S-M. Chen, J-F. Chen, L-S. Yang, Novel isolated high-step-up dc–dc converter with voltage lift, IEEE Transactions on Industrial Electronics, 60, 4, pp.1483–1491 (2013).
(19) V.M. Gradella, G.J. Rafael, F.E. Ruppert, Comprehensive approach to modeling and simulation of photovoltaic arrays, IEEE Transactions on Power Electronics, 24, 5, pp. 1198-1208 (2009).
