Simulation model of the photovoltaic system with a storage battery for a local object connected to a grid with multi-zone tariffication

2020 ◽  
Author(s):  
Olexandr Shavolkin ◽  
Iryna Shvedchykova ◽  
Svitlana Demishonkova
Keyword(s):  
Simulation Model ◽  
Photovoltaic System ◽  
Storage Battery

scholarly journals Management of power consumption in a photovoltaic system with a storage battery connected to the network with multi-zone electricity pricing to supply the local facility own needs

2021 ◽  
pp. 36-42
Author(s):  
A. A. Shavelkin ◽  
J. Gerlici ◽  
I. O. Shvedchykova ◽  
K. Kravchenko ◽  
H. V. Kruhliak
Keyword(s):  
Power Consumption ◽  
Simulation Model ◽  
Photovoltaic System ◽  
Storage Battery ◽  
Electricity Pricing ◽  
Modeling And Analysis ◽  
Local Facility ◽  
Load Schedule ◽  
Battery Energy ◽  
Energy Processes

Purpose. Improving the principles of management of photovoltaic system with storage battery and with autonomous functioning during daylight hours for a local object, connected to the grid with multi-zone payment when excluding the generation of energy into the grid. Methodology. Modeling and analysis of energy processes in the photovoltaic system was performed using the Matlab software package. The simulation model of energy processes is based on calculated expressions taking into account the characteristics of the battery. Operability of the proposed solutions are confirmed on an experimental setup based on a standard hybrid inverter. Results. It’s shown, that due to the battery energy during the most loaded peak hours and part of the daytime the system operates autonomously and does not depend on possible violations of the quality of electricity in the grid. Scenarios of the recommended load schedule are proposed in accordance with the ratio of the predicted value of the daily energy generation of the photovoltaic battery to its possible maximum value. A simulation model of energy processes in the system with the correction of the recommended load value was developed. Originality. A method of the recommended load calculation with current correction for the actual generation and degree of battery charge is proposed, which allows taking into account differences the actual generation of the photovoltaic battery from its predicted value and the actual load from the recommended one. Practical value. The obtained solutions are the basis for the design of new and modernization of existing photovoltaic systems of local objects using software and hardware complexes for power consumption management.

Design of a Portable Solar Photovoltaic-Driven Refrigerator

2011 ◽  
Vol 383-390 ◽  
pp. 6066-6070
Author(s):  
Yu Fang Zang ◽  
Hua Zhang ◽  
Shi Lin Xu ◽  
Zi Long Wang ◽  
Tian Hui Zhang
Keyword(s):  
Photovoltaic System ◽  
Storage Battery ◽  
Solar Photovoltaic ◽  
Night Time ◽  
Public Power ◽  
The Public ◽  
Solar Photovoltaic System ◽  
Supply Mode ◽  
And Storage ◽  
Electric Supply

According to the characteristic of solar photovoltaic, this paper designed an electric supply mode, combined with the solar photovoltaic system, the storage battery and the public power supply, to drive a portable refrigerator which could use outdoor. The refrigerator is installed two individual refrigeration systems with two special arranged evaporators and wind route for storing beverages under the sunlight. Besides, the refrigerator electricity supply has three ways including utilizing solar energy with sun shining, taking advantage of the storage battery in night time and making use of the public power while the sunlight is unavailable. Various tests are carried out to examine the performance of the system. The voltages and currents which are generated by the solar cell and monitored on refrigerator have been studied. In addition, an analysis in power consumption of the system is realized. The results indicated that the refrigerator could run normally and indeed satisfy the request in beverage cooling and storage.

scholarly journals РОЗРОБЛЕННЯ ЕКСПЕРИМЕНТАЛЬНОЇ УСТАНОВКИ ДЛЯ ВИПРОБУВАНЬ ПРОГРАМНО-АПАРАТНИХ ЗАСОБІВ УПРАВЛІННЯ МІКРОЕНЕРГЕТИЧНИМИ МЕРЕЖАМИ ЛОКАЛЬНИХ ОБ’ЄКТІВ

2021 ◽  
Vol 148 (4) ◽  
pp. 14-24
Author(s):  
О. О. Шавьолкін ◽  
І. О. Шведчикова ◽  
Г. В. Кругляк ◽  
Р. М. Марченко ◽  
А. В. Пісоцький
Keyword(s):  
Experimental Research ◽  
Radiation Power ◽  
Practical Importance ◽  
Photovoltaic System ◽  
Storage Battery ◽  
Experimental Setup ◽  
Daily Cycle ◽  
Static Tests ◽  
Experimental Installation ◽  
Software And Hardware

Development of the experimental installation for testing of the software and hardware tools of management of a photovoltaic system of a local facility connected to the grid, which, along with checking its operability, will allow analyzing the operation and adjusting the settings of systems with different parameters under different weather conditions, load schedules and operating modes. Method. Experimental research with preliminary justification of settings based on calculations and simulation data obtained in the Matlab software package. Results.  The  structure  and  experimental  installation  on  the  base  of  the  photovoltaic  system  with storage  battery  and  using  a  photovoltaic  battery  emulator  with  software  control  of  generation  and  load power were developed. The software modules of the system have been developed. According to the results of the simulation, the moments of time are determined when the operating mode is switched in the experimental setup. The experimental setup was tested in static and dynamic modes. Static tests were aimed at checking the functioning of the photovoltaic battery emulator in accordance with the specified solar radiation power and  the  temperature  of  the  photo  module,  as  well  as  checking  the  correctness  of  the  model  used  in  the program. Tests in statics with fixed parameters and in dynamics in the daily cycle, in general, confirmed the efficiency of the proposed solutions. Scientific novelty. The method of experimental research in the daily cycle of photovoltaic systems control with the use of software-controlled emulators of a photovoltaic battery and load with power and time scaling  was  developed.  This,  along  with  the  acceleration  of  the  experiment,  allows  us  to  estimate  the effectiveness  of  the  tested  systems  at  different  ratios  of  system  parameters  and  adjust  the  functioning algorithms.  Practical  importance.  The  proposed  solutions  for  the  implementation  of  the  experimental installation  allow  minimizing  material  costs  and  time  costs  in  the  process  of  testing  and  development  of software and hardware control tools of a photovoltaic system with storage battery.

Single-Phase Single Stage String Inverter for Grid Connected Photovoltaic System

2015 ◽  
Vol 785 ◽  
pp. 177-181
Author(s):  
Siti Zaliha Mohammad Noor ◽  
Ahmad Maliki Omar ◽  
M.A.M. Radzi
Keyword(s):  
Simulation Model ◽  
Single Phase ◽  
Pulse Width Modulation ◽  
Single Stage ◽  
Maximum Power ◽  
Photovoltaic System ◽  
Prototype System ◽  
Point Tracking ◽  
Power Switches ◽  
Power Point

This paper presents the development of single-phase single stage string inverters for grid connected photovoltaic system. The inverter is designed to generate an AC current in phase with the grid voltage and to extract the maximum power from the PV array. The maximum power point tracking (MPPT) is achieved by adjusting the modulation index and phase angle of the inverter’s voltage accordingly using fuzzy logic control algorithm. The prototype system is tested using 2 series of STP170s-24/Ac PV modules. Insulated Gate Bipolar Transistors (IGBTs) are used as power switches while the Sinusoidal Pulse Width Modulation (SPWM) scheme is used as the switching technique to synthesize the output waveform. Simulation model was developed in MATLAB/Simulink environment to study and evaluate behavior of the proposed converter. The results of the prototype system show good agreement with the simulation model.

scholarly journals Comparison between single-diode and two diodes models of a grid connected PV technologies: numerical study and experimental validation

2020 ◽  
Vol 11 (2) ◽  
pp. 914
Author(s):  
L. Bouhaki ◽  
R. Saadani ◽  
M. Rahmoune
Keyword(s):  
Simulation Model ◽  
Mediterranean Climate ◽  
Model Comparison ◽  
Numerical Study ◽  
Simulation Models ◽  
Photovoltaic Cell ◽  
Climatic Conditions ◽  
Photovoltaic System ◽  
Photovoltaic Technologies ◽  
The City

<p>This article presents a simulation model comparison between a diode and two diodes of a photovoltaic cell. The simulation model created under the Matlab-Simulink environment predicts annual performances of the three photovoltaic field technologies connected to the grid. The simulation models have been validated by the experimental data of the photovoltaic system in the meteorological conditions of the city of Meknes. The interest is to inspect the closest model that allows to obtain more reliable results in order to follow the performances and the operation of the installation in the coming years, Also to compare between the efficiency of the three photovoltaic technologies (monocrystalline, polycrystalline and amorphous) in the same climatic conditions of Meknes city in Morocco which is a  Mediterranean climate with very cold winters and very hot summer.</p>

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