Hybrid Automaton Control of Three Phase Reduced Switch Shunt Active Power Filter Connected Photovoltaic System

• Published in: IFAC-PapersOnLine 2020, Vol.53 (2), p.12847-12852
• Main Authors: Hekss, Z., Abouloifa, A., Janik, J.M., Lachkar, I., Echalih, S., Chaoui, F.Z., Giri, F.
• Format: Article
• Language: English
• Subjects: Hybrid automaton model; MPPT; PFC; PI regulator; PV system; Shunt active power filter
• ISSN: 2405-8963; 2405-8963
• DOI: 10.1016/j.ifacol.2020.12.1986

In this paper, a new controller design method based on hybrid automaton approach is proposed to solve the problem of controlling a three-phase reduced switch shunt active power filter (SAPF) connected to photovoltaic system. The control objective is two-fold: (i) ensuring a satisfactory power factor correction (PFC) by compensating the harmonic and reactive currents absorbed by the nonlinear load; (ii) regulating the voltage in the output of the photovoltaic panels to track a reference provided by the MPPT block in order to guarantee the power exchange between the photovoltaic source and three-phase electrical power grid. The considered control objectives are dealt with using a new two-loop cascaded controller. The hybrid automaton approach is applied in the inner loop, which ensures the operation modes of switching design in order to ensure a unity power factor. A proportional-integral (PI) regulator is used in the outer-loop to ensure the tight regulation of the voltage across the photovoltaic panels with a well-known P&O algorithm (MPPT). Finally, it is demonstrated through simulation results under Matlab/Simulink SimPowerSystems environment that the proposed automaton model and its controller can achieve the desired objectives.