utilizing pv solar farms in the night for added system benefits and revenues
S.Prince JohnPaul,R.Mohandas
Published in International Journal of Advanced Research in Electrical and Electronics Engineering
ISSN: 2321-4775 Impact Factor:1.6 Volume:3 Issue:2 Year: 17 February,2015 Pages:79-89
Abstract
PV solar farms produce power during the day and are completely idle in the nights. This paper presents a novel utilization of a PV solar plant as STATCOM in the night for load reactive power compensation and voltage regulation. This STATCOM functionality will also be available to a substantial degree during the daytime with the inverter capacity remaining after real power production. In the night, when the solar farm is completely idle, this new control technique makes the solar farm inverter behave like a STATCOM – a Flexible AC Transmission System (FACTS) device. The solar farm inverter then provides voltage regulation at the point of common coupling and improves the stability and transfer limits far beyond minimal incremental benefits. During the day also, when solar farm is producing real power, this new control strategy makes the solar farm inverter provide voltage control with the remaining inverter capacity (after meeting the requirements of real power generation) and thereby increases power transfer limits substantially.
Kewords
PV, Solar power systems, inverter, voltage control, reactive power control, STATCOM, FACTS.
Reference
[1].Seunghyun Chun, Alexis Kwasinski, “Modified Regula Falsi Optimization Method Approach to Digital Maximum Power Point Tracking for Photovoltaic Application” IEEE Trans. Ind. Electron., vol. 45, pp. 99–107, Feb. 1998. [2].Fu-Sheng Pai, Ru-Min Chao, Shin Hong Ko, and Tai-Sheng Lee, “Performance Evaluation of Parabolic Prediction to Maximum Power Point Tracking for PV Array”, IEEE Trans. Energy Converse., vol. 24, no. 1, pp.256–263, Mar. 2010. [3].Jon Are Saul, Marta Molina’s, , Tore Undeland, “STATCOM-Based Indirect Torque Control of Induction Machines During Voltage Recovery After Grid Faults “,IEEE Trans. on power electronics, vol. 25, no. 5, May 2010 [4].M. Calavia1, J.M. Perié1, J.F. Sanz2 and J. Sallán2,”Comparison of MPPT strategies for solar modules”, Tamkang Journal of Science and Engineering, Vol. 8, No 2,2005, pp. 147-153. [5].Mariusz Malinowski, K. Gopakumar, Jose Rodriguez, and Marcelo A, Pérez, “A Survey on Cascaded Multilevel Inverters”,IEEE Trans. on industrial electronics, vol. 57, NO. 7, JULY 2010. [6].José Rodríguez, Steffen Bernet,nWu, , Jorge O. Pontt, , Samir Kouro, “Multilevel Voltage-Source-Converter Topologies for Industrial Medium-Voltage Drives”, IEEE Trans. on Industrial Electronics, vol. 54, no. 6, December 2007 [7].T. Key, “Finding a bright spot”, IEEE Power and Energy Magazine, vol.7, no.3, pp.33-44, May – June 2009
