Performance assessment of free standing and building integrated grid connected photovoltaic system for southern part of India

Abstract

Photovoltaic (PV) system efficiency depends on the geographical location and the orientation of the building. Until installing the building structures, the integration of the PV module must be evaluated with ventilation and without ventilation effects. This work optimises the performance of the 250 kWp grid-connected photovoltaic (GPV) for community buildings in the southern part of India. This simulation is carried out to evaluate the system efficiency of the GPV system under various ventilation conditions, such as free-standing PV (FSPV), building integrated photovoltaic ventilated (BIPV_V) and Building Integrated Photovoltaic without ventilation (BIPV). The PVsyst simulation tool is used to simulate and optimise the performance of the system with FSPV, BIPV and BIPV_V for the region of Chennai (13.2789° N, 80.2623° E), Tamilnadu, India. An annual system energy production is 446 MWh, 409 MWh and 428 MWh of FSPV, BIPV and BIPV_V system respectively. while electrical efficiency for the FSPV, BIPV_V, BIPV system is 15.45%. 15.25% and 14.75% respectively. Practical application: Integrating the grid connected photovoltaic system on the building reduces the energy consumption in the building. The integration of the PV on the roof or semi integrated on the roof is need to be investigated before installing on the buildings. The need for installation of the BIPV with ventilation is explored. This study will assist architects and wider community to design buildings roofs with GPV system which are more aesthetic and account for noise protection and thermal insulation in the region of equatorial climate zones.

Design of Efficient Off-Grid Solar Photovoltaic Water Pumping System Based on Improved Fractional Open Circuit Voltage MPPT Technique

“…Low cost, remarkably achievable analogically, and the ability of its easy integration with a DC/DC controller in various applications like the SPVWPS. FOCV method [16,17,19,21,[25][26][27], based on the use of reference voltage to adjust the duty ratio of the MPPT controller in a feedback control loop, supposes that irradiation and temperature variations on the array have not a significant impact on the MPP voltage value and that MPP voltage can be estimated with a predefined constant voltage V REF . Thus, the optimum voltage is always close to a proportion of the open circuit voltage V OC .…”

“…Consequently, V REF can be calculated from the empirical relationship shown in Equation (31). It is found that the value of K varies between 72% and 78% [17,26].…”

“…Therefore, a convenient MPP Tracking (MPPT) scheme is required. A complete review of MPPT for off-grid SPV systems can be discovered in the literature, which comprises a constant voltage (CV), the fractional open-circuit voltage (FOCV), the fractional short circuit current (FSCC), the perturb and observe (P&O), the incremental conductance (IC), artificial neural network (ANN), fuzzy logic control (FLC), genetic algorithm (GA), and upgraded P&O based techniques [15][16][17][18][19][20][21][22][23][24][25][26][27][28].…”

“…On the other hand, the indirect methods use a database including empirical data or mathematical relationships resulting in corrections and approximations to estimate the MPP, i.e., CV, FSCC, and FOCV. The FOCV control is based on a proportional relation between the optimal voltage and the characteristic parameters of the PV module that is the open-circuit voltage [15,16,19,21,26]. This MPPT technique requires only one sensor for validation.…”

Performance Enhancement of Mini Agri-voltaic System for Roof Top Garden

“…PV technology is the appropriate technology to harness the solar energy. Integration of the solar photovoltaic technology into the building which converts the building from energy consumers into energy producer (Chandrika et al, 2020;Reddy et al, 2020). The 5-25% of incident solar radiation on the PV module converts the light energy into electrical energy and the remaining energy into heat.…”