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Design and Simulation of Grid-Connected Photovoltaic Single-Phase Inverters

Journal: International Journal of Emerging Trends in Engineering Research (IJETER) (Vol.10, No. 10)

Publication Date:

Authors : ;

Page : 437-442

Keywords : Photovoltaic inverter; Sinusoidal duty cycle modulation; robust controller; PLL; Virtual simulation;

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Abstract

This paper focuses on a new control strategy for single-phase photovoltaic inverters connected to the electrical power distribution network. The inverter studied is single-phase H bridge, equipped with a robust control strategy by sinusoidal duty cycle modulation. This new control strategy offers the advantage over the control strategy. Most used control in its first approximation (PWM control technique): A low Hardware complexity; a variable modulation frequency/period; a topology of modulation with feedback. This inverter structure is further composed of the robust PI controllers, a boost chopper and an LCL filter. The low voltage electrical network to which this inverter is connected is materialized and simulated by a voltage source of characteristics 230V-15A-50Hz and synchronized to the latter by a phase-locked loop (PLL). In this article, the main components of the grid-connected PV power plant are modeled and simulated under Matlab/Simulink as well as the simulation of the global behavior of the entire network+PV inverter and the results obtained are presented

Last modified: 2022-10-11 00:38:11