scholarly journals THE MAIN FACTORS LIMITING AND SHAPING THE RULES FOR INTEGRATING PHOTOVOLTAIC SYSTEMS INTO HISTORIC BUILDINGS

2021 ◽  
pp. 198-216
Author(s):  
Al-Ahmmadi Saer Adnan ◽  
Larysa Shuldan
Keyword(s):  
Initial Conditions ◽  
Photovoltaic Cells ◽  
Historical Context ◽  
Photovoltaic Systems ◽  
Historic Buildings ◽  
Building Structures ◽  
Solar Pv ◽  
Historical Buildings ◽  
Pv Systems ◽  
New Energy

The article highlights the challenges and proposes solutions for integrating solar PV systems into historic buildings. The essential factors and their constituents (excluding natural and orientation), which limit the integration of solar electrical systems (PV) into historical buildings, are analyzed. It proposes its own view of the degree of value of territories and the most historic buildings and associated legal restrictions. The main properties of photovoltaic cells that influence the choice of solutions for integration into buildings of various categories in territories of different values are determined. The suitability for the integration of the visible parts of solar photovoltaic systems is assessed in terms of their selection and adaptation of their properties in the conditions of the historical environment. The visibility of photovoltaic cells installed on the outer shell of building structures from public spaces is investigated as an aesthetic component of integration, initial conditions, approaches and tools for its analysis. A bunch of value features of territories and buildings with a visual and aesthetic component is proposed as the basis for resolving issues related to determining the level of “criticality of the environment” or “sensitivity of the historical context”. Historical buildings of all categories of value make up a significant part of the construction fund of our state. They are the hallmark of our historic cities. But their normal functioning, and possibly their existence, primarily depends on the preservation of their utilitarian function and adaptation to new energy realities. In order to preserve the architectural heritage for future generations, it is necessary to find such approaches and solutions in the energy modernization of historic buildings that will simultaneously increase comfort, reduce energy bills and minimize environmental impact - to preserve historical and aesthetic values.

scholarly journals A Review on Artificial Intelligence Applications for Grid-Connected Solar Photovoltaic Systems

Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4690
Author(s):  
Varaha Satra Bharath Kurukuru ◽  
Ahteshamul Haque ◽  
Mohammed Ali Khan ◽  
Subham Sahoo ◽  
Azra Malik ◽  
...  
Keyword(s):  
Artificial Intelligence ◽  
Value Chain ◽  
Photovoltaic Systems ◽  
Solar Photovoltaic ◽  
Data Generation ◽  
Solar Pv ◽  
Computational Power ◽  
Pv Systems ◽  
Advantages And Disadvantages ◽  
Accuracy And Precision

The use of artificial intelligence (AI) is increasing in various sectors of photovoltaic (PV) systems, due to the increasing computational power, tools and data generation. The currently employed methods for various functions of the solar PV industry related to design, forecasting, control, and maintenance have been found to deliver relatively inaccurate results. Further, the use of AI to perform these tasks achieved a higher degree of accuracy and precision and is now a highly interesting topic. In this context, this paper aims to investigate how AI techniques impact the PV value chain. The investigation consists of mapping the currently available AI technologies, identifying possible future uses of AI, and also quantifying their advantages and disadvantages in regard to the conventional mechanisms.

scholarly journals Thermophysical parameters of the Kežmarok sandstone

2021 ◽  
Vol 1209 (1) ◽  
pp. 012004
Author(s):  
P Jaroš ◽  
M Vertal
Keyword(s):  
Material Properties ◽  
Building Materials ◽  
Simulation Software ◽  
Historic Buildings ◽  
Building Structures ◽  
Historical Buildings ◽  
Historical Building ◽  
Thermophysical Parameters ◽  
Water Accumulation ◽  
The Impact

Abstract Thermophysical parameters of building materials are required for calculating the complex heat and water transfer in building structures. It can be performed by modern simulation software such as Wufi, Delphin, Math, Comsol Multiphysics and other. This software is suitable for evaluation of water and heat transport in construction of historical buildings, because it can include the impact of water on material properties, driven rain, ground water, heat and water accumulation and other. The material properties of historical building materials are required for the use of this software. In Slovakia, the most used building material was sandstone. Sandstone from Kežmarok was chosen for this paper, which was used in the construction of historic buildings such as churches and town houses. The method of dynamic impulse transition by thermophysical tester RTB was used to determine the thermal properties of sandstone.

A tes

2018 ◽  
Vol 1 (3) ◽  
Author(s):  
IJE Manager
Keyword(s):  
Energy Supply ◽  
Fossil Fuels ◽  
Geographical Location ◽  
Weather Conditions ◽  
Past Century ◽  
Solar Pv ◽  
Pv Systems ◽  
Trade Offs ◽  
A Site ◽  
Selection Methodology

In the past century, fossil fuels have dominated energy supply in Indonesia. However, concerns over emissions are likely to change the future energy supply. As people become more conscious of environmental issues, alternatives for energy are sought to reduce the environmental impacts. These include renewable energy (RE) sources such as solar photovoltaic (PV) systems. However, most RE sources like solar PV are not available continuously since they depend on weather conditions, in addition to geographical location. Bali has a stable and long sunny day with 12 hours of daylight throughout the year and an average insolation of 5.3 kWh/m2 per day. This study looks at the potential for on-grid solar PV to decarbonize energy in Bali. A site selection methodology using GIS is applied to measure solar PV potential. Firstly, the study investigates the boundaries related to environmental acceptability and economic objectives for land use in Bali. Secondly, the potential of solar energy is estimated by defining the suitable areas, given the technical assumptions of solar PV. Finally, the study extends the analysis to calculate the reduction in emissions when the calculated potential is installed. Some technical factors, such as tilting solar, and intermittency throughout the day, are outside the scope of this study. Based on this model, Bali has an annual electricity potential for 32-53 TWh from solar PV using amorphous thin-film silicon as the cheapest option. This potential amount to three times the electricity supply for the island in 2024 which is estimated at 10 TWh. Bali has an excessive potential to support its own electricity demand with renewables, however, some limitations exist with some trade-offs to realize the idea. These results aim to build a developmental vision of solar PV systems in Bali based on available land and the region’s irradiation.

Reduction of the Low Voltage Substation Constraints by Inserting Photovoltaic Systems in Underserved Areas

2019 ◽  
Vol 12 (2) ◽  
pp. 105-112
Author(s):  
Benbouza Naima ◽  
Benfarhi Louiza ◽  
Azoui Boubekeur
Keyword(s):  
Low Voltage ◽  
Voltage Drop ◽  
Electrical Energy ◽  
Utilization Rate ◽  
Photovoltaic Systems ◽  
Voltage Distribution ◽  
Medium Voltage ◽  
Pv Systems ◽  
Transformer Substation ◽  
Load Pattern

Background: The improvement of the voltage in power lines and the respect of the low voltage distribution transformer substations constraints (Transformer utilization rate and Voltage drop) are possible by several means: reinforcement of conductor sections, installation of new MV / LV substations (Medium Voltage (MV), Low Voltage (LV)), etc. Methods: Connection of mini-photovoltaic systems (PV) to the network, or to consumers in underserved areas, is a well-adopted solution to solve the problem of voltage drop and lighten the substation transformer, and at the same time provide clean electrical energy. PV systems can therefore contribute to this solution since they produce energy at the deficit site. Results: This paper presents the improvement of transformer substation constraints, supplying an end of low voltage electrical line, by inserting photovoltaic systems at underserved subscribers. Conclusion: This study is applied to a typical load pattern, specified to the consumers region.

scholarly journals Reconfigurable Distributed Power Electronics Technique for Solar PV Systems

Electronics ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 1121
Author(s):  
Kamran Ali Khan Niazi ◽  
Yongheng Yang ◽  
Tamas Kerekes ◽  
Dezso Sera
Keyword(s):  
Energy Yield ◽  
Solar Pv ◽  
Charge Redistribution ◽  
Pv System ◽  
Partial Shading ◽  
Pv Systems ◽  
Simulation Based ◽  
In Series ◽  
A Cell ◽  
Power Balancing

A reconfiguration technique using a switched-capacitor (SC)-based voltage equalizer differential power processing (DPP) concept is proposed in this paper for photovoltaic (PV) systems at a cell/subpanel/panel-level. The proposed active diffusion charge redistribution (ADCR) architecture increases the energy yield during mismatch and adds a voltage boosting capability to the PV system under no mismatch by connected the available PV cells/panels in series. The technique performs a reconfiguration by measuring the PV cell/panel voltages and their irradiances. The power balancing is achieved by charge redistribution through SC under mismatch conditions, e.g., partial shading. Moreover, PV cells/panels remain in series under no mismatch. Overall, this paper analyzes, simulates, and evaluates the effectiveness of the proposed DPP architecture through a simulation-based model prepared in PSIM. Additionally, the effectiveness is also demonstrated by comparing it with existing conventional DPP and traditional bypass diode architecture.

Analysis of Power Grid Voltage Stability with High Penetration of Solar PV Systems

2021 ◽  
pp. 1-1
Author(s):  
Sharmin Rahman ◽  
Sajeeb Saha ◽  
Shama Naz Islam ◽  
M Arif ◽  
Mehdi Mosadeghy ◽  
...  
Keyword(s):  
Voltage Stability ◽  
Power Grid ◽  
Solar Pv ◽  
Grid Voltage ◽  
Pv Systems ◽  
High Penetration

scholarly journals A Simple Mismatch Mitigating Partial Power Processing Converter for Solar PV Modules

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2308
Author(s):  
Kamran Ali Khan Niazi ◽  
Yongheng Yang ◽  
Tamas Kerekes ◽  
Dezso Sera
Keyword(s):  
Experimental Tests ◽  
Energy Yield ◽  
Power Electronic ◽  
Solar Pv ◽  
Partial Shading ◽  
Loss Analysis ◽  
Pv Systems ◽  
Pv Module ◽  
Pv Modules ◽  
In Series

Partial shading affects the energy harvested from photovoltaic (PV) modules, leading to a mismatch in PV systems and causing energy losses. For this purpose, differential power processing (DPP) converters are the emerging power electronic-based topologies used to address the mismatch issues. Normally, PV modules are connected in series and DPP converters are used to extract the power from these PV modules by only processing the fraction of power called mismatched power. In this work, a switched-capacitor-inductor (SCL)-based DPP converter is presented, which mitigates the non-ideal conditions in solar PV systems. A proposed SCL-based DPP technique utilizes a simple control strategy to extract the maximum power from the partially shaded PV modules by only processing a fraction of the power. Furthermore, an operational principle and loss analysis for the proposed converter is presented. The proposed topology is examined and compared with the traditional bypass diode technique through simulations and experimental tests. The efficiency of the proposed DPP is validated by the experiment and simulation. The results demonstrate the performance in terms of higher energy yield without bypassing the low-producing PV module by using a simple control. The results indicate that achieved efficiency is higher than 98% under severe mismatch (higher than 50%).

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