scholarly journals Impact Study on Power Generation from Photovoltaic System due to Change in Local Irradiance and Temperature at Kathmandu Valley, Nepal

2017 ◽  
Vol 12 (1) ◽  
pp. 1-9
Author(s):  
Manish Shrestha ◽  
Nawraj Bhattarai
Keyword(s):  
Meteorological Data ◽  
Operating Conditions ◽  
Photovoltaic System ◽  
Photovoltaic Module ◽  
Kathmandu Valley ◽  
Solar Photovoltaic ◽  
Impact Study ◽  
Simulation And Experiment ◽  
Solar Photovoltaic System ◽  
The Impact

Solar Photovoltaic system has become popular among the renewable energy due to free availability and low maintenance costs. Economically, the decreasing cost from continuous development adds another motive for the use of photovoltaic system. There has been a continuous study regarding the estimation on output of the photovoltaic system, in normal operating conditions. The output is subject to variations due to various environmental factors. The aim of this study is to evaluate how Design of Experiments (DoE) Method is used to model the impact of meteorological data on the electric power generated by the photovoltaic system. In this paper, the simulation and experiment based analysis has been presented and the degree of impact of irradiance and temperature on the output power of the photovoltaic module has been illustrated.Journal of the Institute of Engineering, 2016, 12(1): 1-9

scholarly journals A new meta-heuristic pathfinder algorithm for solving optimal allocation of solar photovoltaic system in multi-lateral distribution system for improving resilience

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Varaprasad Janamala
Keyword(s):  
Distribution System ◽  
Distribution Systems ◽  
Voltage Stability ◽  
Optimal Allocation ◽  
Photovoltaic System ◽  
Solar Photovoltaic ◽  
Voltage Profile ◽  
Pv System ◽  
Solar Photovoltaic System ◽  
The Impact

AbstractA new meta-heuristic Pathfinder Algorithm (PFA) is adopted in this paper for optimal allocation and simultaneous integration of a solar photovoltaic system among multi-laterals, called interline-photovoltaic (I-PV) system. At first, the performance of PFA is evaluated by solving the optimal allocation of distribution generation problem in IEEE 33- and 69-bus systems for loss minimization. The obtained results show that the performance of proposed PFA is superior to PSO, TLBO, CSA, and GOA and other approaches cited in literature. The comparison of different performance measures of 50 independent trail runs predominantly shows the effectiveness of PFA and its efficiency for global optima. Subsequently, PFA is implemented for determining the optimal I-PV configuration considering the resilience without compromising the various operational and radiality constraints. Different case studies are simulated and the impact of the I-PV system is analyzed in terms of voltage profile and voltage stability. The proposed optimal I-PV configuration resulted in loss reduction of 77.87% and 98.33% in IEEE 33- and 69-bus systems, respectively. Further, the reduced average voltage deviation index and increased voltage stability index result in an improved voltage profile and enhanced voltage stability margin in radial distribution systems and its suitability for practical applications.

scholarly journals Determinants of Value Chain Analysis of Solar Photovoltaic Industry in Kathmandu Valley

2018 ◽  
Vol 1 (2) ◽  
pp. 153
Author(s):  
Anita Rizal
Keyword(s):  
Value Chain ◽  
Distribution Channel ◽  
Photovoltaic System ◽  
Kathmandu Valley ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Value Chain Analysis ◽  
Factors Influencing ◽  
Chain Analysis ◽  
Solar Photovoltaic System

<p>The objective of this paper is to find out key factors influencing target market of solar photovoltaic industry; and identify ways on how to reduce cost of sales in solar photovoltaic industry in Nepal. It also analyzes better ways of marketing solar photovoltaic system in current market. The conceptual model taken for this study comprises of Porter’s (1985) value chain analysis theory which has identified two sequences of activities i.e. primary and support activities. Exploratory research has been used where primary data is collected through structured questionnaire distributed among 120 individual sellers of solar photovoltaic system inside Kathmandu valley. The data collected are analyzed using SPSS 16.0 which is coded and tabulated by Microsoft Excel spreadsheet application.</p><p>The result of the analysis of the data shows that factors influencing value chain of solar PV industry are infrastructure (mostly furniture, workshop, showroom, capital and human resources in less number) needed to set up a company, imported from different countries, distribution channel, subsidy claim, marketing medium and after sales service. Few companies import huge quantity of solar related products. Most of the companies targeting direct customer don't claim subsidy directly rather they claim via other pre-qualified companies. Also these companies consider radio advertisement to reach customers at large rather than any other medium of marketing. These companies value warranty and repair &amp; maintenance services as an after sales service. Although few of the solar photovoltaic systems are manufactured in Nepal, they prefer to import these items rather than promote Nepal made products. Thus, these factors have created value from import to service to the customers.</p><p>Journal of Business and Social Sciences Research, Vol. 1, No. 2, pp. 153-168</p>

scholarly journals Design Modeling and Simulation of 150 KW Solar Photovoltaic Systems: A Review

2020 ◽  
Vol 9 (2) ◽  
pp. 703-706
Keyword(s):  
Carbon Dioxide ◽  
Renewable Energy ◽  
The Other ◽  
Photovoltaic System ◽  
Photovoltaic Module ◽  
Solar Photovoltaic ◽  
Current Voltage ◽  
Effects Of Temperature ◽  
Solar Photovoltaic System ◽  
Design And Manufacture

Sun is the source of energy. Renewable energy is a clean eco-system free of harmful gasses such as carbon dioxide, and all the other harmful gases which are produced from the fossil. Many technologies have been used to design and manufacture the photovoltaic module. In this paper we have reviewed the design of solar photovoltaic system of using MatLab/Simulink. Characteristics of I-V and P-V are parameter of great importance in solar photovoltaic system. The effects of temperature and irradiation at the output of solar system that is current, voltage and output power have also been reviewed and studied.

Energy performance and loss analysis of 100 kWp grid-connected rooftop solar photovoltaic system

2021 ◽  
pp. 014362442199422
Author(s):  
Anupama KhareSaxena ◽  
Seema Saxena ◽  
K Sudhakar
Keyword(s):  
Central India ◽  
Energy Performance ◽  
Operating Conditions ◽  
Environmental Benefits ◽  
Photovoltaic System ◽  
Performance Ratio ◽  
Energy Output ◽  
Solar Photovoltaic ◽  
And Performance ◽  
Solar Photovoltaic System

In the present work, simulation and energy analysis of a grid-tied 100 kWp solar photovoltaic power plant mounted on an institute's building rooftop in Bhopal city of India are carried out. The present study provides insight into the solar power plant's performance linked to the medium range grid under actual operating conditions in Central India. It is observed that the standard performance ratio and the capacity factor of the plant are 80.72% and 19.27% respectively. The average monthly energy produced is highest in April and lowest in July. Simulation results using different simulation tools have been compared and are shown to be in near agreement with the real calculated values. This plant set-up is expected to gain profit after a period of 5.9 years with a capacity to mitigate 136 tons of CO2 emission annually. Practical application: This study estimates the energy output, system losses and performance parameters for a 100 kWp rooftop grid connected solar photovoltaic system. This helps to check the feasibility of such a system at this location. Also the payback period and reduction in carbon footprint are calculated to highlight the economic and environmental benefits. This would attract public interest for installation of more such plants on rooftops of buildings in the near future.

scholarly journals Investigations on grid connected PV system under variable irradiation conditions

2018 ◽  
Vol 7 (3.29) ◽  
pp. 253
Author(s):  
G Sreenivasa Reddy ◽  
T Bramhananda Reddy ◽  
M Vijaya Kumar
Keyword(s):  
Photovoltaic Cell ◽  
Photovoltaic System ◽  
Solar Irradiation ◽  
Electrical Performance ◽  
Photovoltaic Module ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Pv System ◽  
Photovoltaic Panel ◽  
Solar Photovoltaic System

A solar photovoltaic panel or a solar PV module is a device, which is to be considered universality the basic constituent of a solar photovoltaic system and is a combination of series and parallel assembly of solar cells. The electrical performance of this solar photovoltaic module be contingent on different environmental situations like PV cells/module solar spectral (air mass), ambient temperature, solar irradiance, angle-of-incidence.With these dependent conditions, there will be a petite chance to operate at its maximum power point (MPP) Hence, a Perturb and Observe (P&O) MPP algorithm is employed which draws considerable power with the desired time response. In present work, the interfacing of Solar PV system with the utility grid system which is having 15kW based on the Voltage Oriented Control (VOC). The temperature of the individual photovoltaic cell and solar irradiation are to be considered as inputs for the simulation process, whereas the duty cycle of the DC-DC boost converter is an output of the P&O controller. Performance of this grid-connected PV system with VOC method is analyzed with the simulation results and %THD values of the voltage and current at coupling point is verified. The results show the superiority of VOC method and its high dynamic behavior under variable irradiation conditions.  

scholarly journals Design of off-grid solar photovoltaic system using DC-DC topologies for BIUST classrooms

2021 ◽  
Vol 1055 (1) ◽  
pp. 012150
Author(s):  
B A Tlhabologo ◽  
G Molosiwa ◽  
O Ongadile ◽  
Ravi Samikannu
Keyword(s):  
Photovoltaic System ◽  
Solar Photovoltaic ◽  
Solar Photovoltaic System

A High Gain Novel Double-Boost Converter for DC Microgrid Applications

2020 ◽  
Vol 29 (15) ◽  
pp. 2050246 ◽  
Author(s):  
B. N. Ch. V. Chakravarthi ◽  
G. V. Siva Krishna Rao
Keyword(s):  
Control Strategies ◽  
High Gain ◽  
Photovoltaic System ◽  
Solar Photovoltaic ◽  
Dc Microgrid ◽  
Boost Converters ◽  
Power Point ◽  
Solar Photovoltaic System ◽  
Conversion Stage ◽  
And Control

In solar photovoltaic (PV)-based DC microgrid systems, the voltage output of the classical DC–DC converter produces very less voltage as a result of poor voltage gain. Therefore, cascaded DC–DC boost converters are mandatory for boosting the voltage to match the DC microgrid voltage. However, the number of devices utilized in the DC–DC conversion stage becomes higher and leads to more losses. Thereby, it affects the system efficiency and increases the complication of the system and cost. In order to overcome this drawback, a novel double-boost DC–DC converter is proposed to meet the voltage in DC microgrid. Also, this paper discusses the detailed operation of maximum power point (MPP) tracking techniques in the novel double-boost DC–DC converter topology. The fundamental [Formula: see text]–[Formula: see text] and [Formula: see text]–[Formula: see text] characteristics of solar photovoltaic system, operational details of MPP execution and control strategies for double-boost DC/DC converter are described elaborately. The proposed converter operation and power injection into the DC microgrid are verified through the real-time PSCAD simulation and the validation is done through the experiment with hardware module which is indistinguishable with the simulation platform.

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