Design and Analysis of a Photovoltaic Power System with Bi-Directional Inverter

Abstract:

This paper presents the analysis, design, and simulation of a photovoltaic power system with bi-directional inverter, which can be controlled with a single-chip microcontroller, such as dsPIC30F4011. The bi-directional inverter can fulfill grid connection and rectification with power factor correction to regulate the dc bus to a certain range of voltages. So, it will no need energy storage elements to buffer power. But the two stage series can cause high current harmonic, so a predictive current control and modulation principle for the bi-directional inverter is designed and operated in high frequency to reduce the current harmonic. Simulation and experimental results have illustrated the discussed features and significantly demonstrated its feasibility, reliability, and stability.

• Periodical: Applied Mechanics and Materials (Volumes 291-294)
• Pages: 9-13
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.291-294.9
• Online since: February 2013
• Authors: De Han Luo, Yu En Wu, Qiang Li
• Keywords: Bi-Directional Inverter, Grid Connection, Photovoltaic Power System, Power Factor Correction (PFC), Predictive Current Control

References

[1] H. Falk, Prolog to renewable energy today and tomorrow, IEEE Proceedings, vol. 89, Issue 8, pp.1214-1215, (2001).

DOI: 10.1109/jproc.2001.940289

[2] S. R. Bull, Renewable Energy Today and tomorrow, IEEE proceeding, vol. 89, Issue 8, pp.1216-1226, (2001).

[3] D. Salomonsson, L. Soder, and A. Sannino, An adaptive control system for a dc microgrid for data centers, IEEETrans. Ind. Appl, vol. 44, no. 6, pp.1910-1917, Nov. (2008).

DOI: 10.1109/tia.2008.2006398

[4] Y. che, Z. -G. Yang, and K. W. E. cheng, construction, operation and control of a laboratory-scale microgrid, in proc. 3rd Int. conf. Power Electron. Syst. Appl., 2009, pp.1-5.

[5] Y. Jung, J. So, G. Yu, et al., Improved perturbation and observation method (IP&O) of MPPT control for photovoltaic power systems, Photovoltaic Specialists Conference, 2005. 3-7 Jan. 2005, pp.1788-1791.

DOI: 10.1109/pvsc.2005.1488498

[6] S. Yuvarajan, J. Shoeb, A fast and accurate maximum power point tracker for PV systems, Applied Power Electronics Conference and Exposition, APEC 2008, pp.167-172.

DOI: 10.1109/apec.2008.4522717

[7] N. Mohan, T. M. Undelano and W. P. Robbius, Power Electronics, John Wiley & Sons Inc., (1995).

[8] Daniel W. Hart, Introduction To Power Electronics, Prentice Hall, (1997).

[9] T. -F. Wu, K. -H. Sun, C. -L. Kuo and C. -H. Chang, Predictive Current Controlled 5-kW Single-Phase Bidirectional Inverter With Wide Inductance Variation for DC-Microgrid Applications, IEEE Transactions on Industrial Electronics, pp.3076-3084, Dec. (2010).

DOI: 10.1109/tpel.2010.2087773

[10] B. Yu and L. Chang Improved Predictive Current Controlled PWM for Single-Phase Grid-Connected Voltage Source Inverters, IEEE Transactions on Industrial Electronics, pp.231-236, (2005).

DOI: 10.1109/pesc.2005.1581629