Three-Phase Multistage System (DC-AC-DC-AC) for Connecting Solar Cells to the Grid

Mahmudreza Changizian, Ali Zakerian, Araz Saleki

Abstract


Inverter systems that feed electrical power from photovoltaic (PV) system into the grid must convert the direct current of the PV array into the alternating current of the grid. In many applications, it is important for a converter to be lightweight, highly reliable, input/output isolated, flexible and operable in a boost mode. These features can be achieved by using a High-Frequency inverter which involves an isolated DC-DC stage and DC-AC section, which provides AC output. This paper proposes a new three phase topology, based on multi stage converter and PV system in order to use in medium and high power applications. The Perturb and Observe (P&O) method is used for maximum power point tracking (MPPT) control of PV array. The switching control signals for three-phase inverter are provided by hysteresis control method. Also, the comparison between the proposed topology and traditional structures has been conducted and finally the simulation researches are performed in a closed-loop control system by MATLAB/Simulink software to verify the operation of the proposed structure. The results represent better performance of the introduced system over traditional topologies.

Keywords


Photovoltaic (PV); Boost Inverter; Current-Source Inverter; High-Frequency Inverter; Maximum Power Point Tracking (MPPT).

References


B. Rahmani and M. T. Bina, "Reciprocal effects of the distorted wind turbine source and the shunt active power filter: full compensation of unbalance and harmonics under 'capacitive non-linear load' condition," in IET Power Electronics, vol. 6, no. 8, pp. 1668-1682, September 2013.

M. Mohr, W. T. Franke, B. Wittig, and F. W. Fuchs, “Converter systems for fuel cells in the medium power range-a comparative study,” IEEE Trans. Ind. Electron., vol. 57, no. 6, pp. 2024–2032, 2010.

H. M. Pirouz and M. T. Bina, “Modular multilevel converter based STATCOM topology suitable for medium voltage unbalanced systems,” Journal of Power Electronics, Vol. 10, No. 5, pp. 572-578, Sep. 2010.

N. Mohan, T. M. Undeland, and W. P. Robbins, “Power Electronics: Converters, Applications, and Design.” John Wiley & Sons, 2003.

Atul Singh and Jabir VS, “Voltage Fed Full Bridge DC-DC and DC-AC Converter for High-Frequency Inverter Using C2000,” no. May, pp. 1–18, 2014.

B. K. Bose, P. M. Szczesny, and R. L. Steigerwald, “Microcomputer Control of a Residential Photovoltaic Power Conditioning System,” IEEE Trans. Ind. Appl., vol. IA-21, no. 5, pp. 1182–1191, 1985.

S. B. Kjaer and F. Blaabjerg, “Design optimization of a single phase inverter for photovoltaic applications,” Power Electron. Spec. Conf. 2003. PESC ’03. 2003 IEEE 34th Annu. vol. 3, pp. 1183–1190, 2003.

S. Rahimzadeh, M. T. Bina, “Planning Required for FACTS Devices to Improve the Steady State Efficiency of Restructured Power Systems: A Review,” international Review of Electrical Engineering (JREE), Vol. 4, n. 3, June 2009, pp. 417-424.

S. Rahimzadeh, M. T. Bina, A. Viki, “Stedy state model of STATCOM and SSSC using averaging technique”, Inter. Rev. of Elec.Eng. (IREE), Vol.4, No.6, pp.1391-1403, 2009.

M. R. Islam, Y. Guo, and J. Zhu, Power Converters for Medium Voltage Networks, vol. 182, no. Mv. Springer, 2014.

T. Esram and P. L. Chapman, "Comparison of Photovoltaic Array Maximum Power Point Tracking Techniques," in IEEE Transactions on Energy Conversion, vol. 22, no. 2, pp. 439-449, 2007.

N. S. D’Souza, L. A. C. Lopes, and X. Liu, L. A. C. Lopes, “An intelligent maximum power point tracker using peak current control,” in Proc. 36th Annu. IEEE Power Electron. Spec. Conf, 2005, pp. 172–177.

H. Vahedi, A. Sheikholeslami, M. Tavakoli Bina, and M. Vahedi, “Review and Simulation of Fixed and Adaptive Hysteresis Current Control Considering Switching Losses and High-Frequency Harmonics,” Adv. Power Electron, vol. 2011, pp. 1–6, 2011.


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DOI: 10.28991/ijse-01116

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Copyright (c) 2017 Mahmudreza Changizian, Ali Zakerian, Araz Saleki