An Adaptive Quadrant Filter-based PLL Approach for Grid Connected Multifunctional Inverter

• Published in: 2023 First International Conference on Advances in Electrical, Electronics and Computational Intelligence (ICAEECI) pp. 1 - 6
• Main Authors: Diddi, Naveen Kumar, Kumar, K V N S Pavan
• Format: Conference Proceeding
• Language: English
• Published: IEEE 19-10-2023
• Subjects: Adaptive filters; Adaptive Quadrant Filter (AQF); and Solar Photovoltaic (SPV); Inverters; Phase Locked Loop (PLL); Phase locked loops; Photovoltaic systems; Power Quality (PQ); Quadrature Signal Generator (QSG); Software packages; Surveillance; Synchronous Reference Frame (SRF); Temperature control
• DOI: 10.1109/ICAEECI58247.2023.10370792

The present study developed a grid-linked versatile inverter approach based on an adaptive quadrant phase-locked circuit (PLL). The strategy suggested addresses irregular load patterns as well as non-ideal system values such as imbalance, harmonics, intensity change, and so on, which enhances the reliability of the power. An Intelligent Quad Filter-based Synchro Referring Frames (SRF) PLL will appropriately cope with electric supply amplitude and minimize the time separation of PLL outputs. This method detects amplitude and period while also extracting affirmative cycle elements for a system with one phase. Once tested for wavelength and amplitude aberrations, a typical SRF PLL will display the resultant aberrations. The developed PLL will lessen the trade-off between phase angle surveillance precision and responsiveness under skewed situations. This strategy serves as a regulatory mechanism for a single-stage single-phase system-connected versatile switcher for PV installations to optimize electrical performance at the PCC primary while simultaneously servicing the infrastructure and demand. When determining benchmark photovoltaic (PV) signaling as well as authority, the Perturb & Observe Maximum Power Point Tracking method is used. The article includes an in-depth investigation using the offered monitoring mechanism. MATLAB / Simulink is used to test the functionality and efficacy of its given regulation during diverse functioning situations.