期刊名称:International Journal of Computer and Information Technology
印刷版ISSN:2279-0764
出版年度:2014
卷号:3
期号:5
页码:1021
出版社:International Journal of Computer and Information Technology
摘要:This paper involves the nonlinear control of single phase grid connected photovoltaic system with LCL filter. The control objective is threefold i) extracting the maximum power from the PV array by acting on the DC/DC converter (MPPT) ii) providing a current with sinusoidal waveform and in phase with the grid voltage by means of controlling DC/AC converter (power factor correction: PFC) iii) regulating the DC voltage to a desired value (VR). The whole system is described by 5 th order nonlinear mathematical model and controlled by using the backstepping approach and tools from Lyapunov stability. The simulation results have been performed through Matlab/Simulink environment and show that the designed controller meets its objective.