State-feedback nonlinear control of three-phase grid connected to the photovoltaic system

Autor: Abdellatif Hamdoun, M. Aourir, Ibtissam Lachkar, Chaouqi Aouadi, Abdelmajid Abouloifa, Yasser Boussairi
Rok vydání: 2017
Předmět:
Zdroj: 2017 IEEE International Conference on Environment and Electrical Engineering and 2017 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe).
DOI: 10.1109/eeeic.2017.7977820
Popis: In this paper, the control problem of three-phase grid connected to the PV system through a LCL filter is presented. In this work, we seek the achievement of three control objectives: (i) the voltage provided by PV panel must be controlled to achieve the optimum power by means of controlling the input voltage of DC/DC converter; (ii) regulating the DC link voltage to a constant reference value; (iii) Providing a current with sinusoidal waveform and in phase with the grid voltage by means of controlling DC/AC converter (Power Factor Correction). To meet these threefold objectives, a cascade nonlinear controllers is developed making use of the Lyapunov control design technique. The control system includes also a Maximum Power Point Tracking (MPPT) based on Incremental Conductance "with variable step" algorithm.
Databáze: OpenAIRE