Search

Global electricity demand is increasing with the rising population and rapid urbanization. Building Integrated photovoltaic (BIPV) system is a new method of renewable energy generation where solar photovoltaic (PV) modules are integrated into the building surfaces such as façade, shades, windows, roofs, and tiles. BIPV systems reduce the urban energy demand. Utilization of vertical surfaces makes the BIPV system a preferable choice where land scarcity affects the implementation of large PV systems. The economic viability depends on the maximum power generated by the BIPV array. In urban environments, the BIPV arrays experience severe partial shading conditions (PSCs). The PSCs cause mismatch losses, reducing the global maximum power of the BIPV array and efficiency. Fixed array configurations such as series-parallel (SP), total-cross-tied (TCT), triple-tied (TT), and quarter-tied (QT) are designed to solve this issue. The cross ties across the rows of the BIPV array improve the performance at the expense of more wiring. Researchers proposed various optimal array configurations with different shading patterns. This research attempts to generalize the design of the BIPV array configurations by considering the trade-off between wiring requirements and shading losses. The performance of SP, TT, QT, and TCT configurations under four different shading conditions is simulated with the proposed BIPV array design algorithm. A 9 × 8 BIPV array of 3.6 kW is considered. QT configuration reduces the wiring requirement by 10.45% compared to TCT and improves up to 8.43% maximum power than SP. The fill factor is improved to 48.49%, and the mismatch loss is limited to 34.10%. Therefore, QT and TCT are considered favorable configurations for BIPV array design. [ABSTRACT FROM AUTHOR]

This paper presents the MPPT algorithm for the proposed hybrid energy system, i.e., PV and wind systems, and is tested for grid-connected and standalone utilities. This study's major objective is to maximize the power output and enhance the power quality of the hybrid renewable energy technologies that have been created. In the literature, many research scholars have worked in the field of MPPT calculations for PV and wind systems, which increases the number of publications in the field of control calculations for hybrid power systems. This study pays attention to designing a controller based on MPPT for extracting maximum energy from wind and PV energy systems. The suggested algorithm is tested in grid and standalone modes, considering variable weather conditions. The proposed system is designed for 500 W solar and wind plants with the usual step-up converter and tested in MATLAB software to judge the efficacy of the suggested controller designed for MPPT. In this work, the suggested radial basis function network is implemented in wind and PV facilities via MPPT technique-based ANN control to obtain the maximum power by using fuzzy controllers. [ABSTRACT FROM AUTHOR]

This document is a preface for a special issue of the journal Microsystem Technologies. The issue contains selected papers from the 5th International Conference on Energy Systems, Drives and Automations (ESDA2022) held in Kolkata, India. The papers cover a range of topics including renewable energy, solar cells, electrical drives, automations, and microelectronics. The papers underwent a rigorous peer review process before being accepted for publication. The preface acknowledges the contributions of the office executives, staff, authors, guides, and reviewers in the successful completion of the special issue. [Extracted from the article]