Interval type-2 fuzzy logic controller based grid-tied solar PV inverter with active and reactive power control

Article type: Research Article

Authors: Venkatasamy, B.^{; *} | Kalaivani, L.

Affiliations: Department of EEE, National Engineering College, Kovilpatti, Thoothukudi Dist, Tamilnadu, India

Correspondence: [*] Corresponding author. B. Venkatasamy, Department of EEE, National Engineering College, Kovilpatti, Thoothukudi Dist, Tamilnadu, India. E-mail: vijinec@gmail.com.

Abstract: Solar photovoltaic industry is continuously thriving to improve the performance of power management systems with technology advancement. In the power system, balancing active and reactive power injection and absorption plays a pivotal role in maintaining Grid regulation and power factor and thus improving the efficiency and power handling capability. The Grid-tied solar PV inverters can be the cost-effective solution for reactive power compensation. Solar photovoltaic (SPV) system with the Grid-tied inverter is to produce active and reactive power in various ecological conditions. The Grid-tied PV inverter injects active and reactive power into the grid according to the desired value by the Grid requirements. The Proposed system uses decoupled P-Q theory with Interval type-2 Fuzzy Logic Controller (IT2-FLC). Also, the proposed controller minimizes the Total Harmonic Distortion (THD) and produces regulated output power compared to the other control techniques. The proposed IT2-FLC is compared with a Type-1 Fuzzy Logic Controller (T1-FLC) and conventional mathematical PI controller for performance analysis using simulation. A 75 kW Grid-tied inverter is designed in simulation to prove the effectiveness of the system through Matlab/Simulink. A smaller rating prototype model is developed to verify the simulation results.

Keywords: Solar Photovoltaic, grid-tied inverter, interval type-2 fuzzy logic controller, reactive power

DOI: 10.3233/JIFS-212721

Journal: Journal of Intelligent & Fuzzy Systems, vol. 43, no. 3, pp. 2299-2314, 2022