Energy-Saving Systems Using Photovoltaic Modules

2020 ◽  
pp. 464-485
Author(s):  
Pavel Valentinovich Tikhonov ◽  
Vladimir Aleksandrovich Mayorov ◽  
Konstantin Sergeevich Morenko
Keyword(s):  
Power Supply ◽  
Output Voltage ◽  
Lithium Ion ◽  
Minimum Cost ◽  
Photovoltaic System ◽  
Photovoltaic Module ◽  
Operating Modes ◽  
Photovoltaic Power ◽  
Additional Costs ◽  
Working Day

The chapter presents the results of the development of two systems. The first is a photovoltaic system parallel to the power supply network of LED lamps. The algorithms of the system operation for both working and emergency lighting are shown. The basic operating modes of the system are considered taking into account the criterion of the minimum cost of electricity generated. These modes provide the most complete use of solar energy in the working day with minimal additional costs, allowing the consumer to save on electricity and increase the reliability of the emergency lighting system. The second system is a solar photovoltaic module built into a standard double-glazed window sash size 730x700 (mm), which is designed to charge a block of lithium-ion batteries with a capacity of 6.8 Ah with an output voltage of 5.25 V, the energy of which can be used to power any device having a USB 2.0 connector. The results of calculation of the required peak photovoltaic power of the module are presented; the technology of its sealing is described.

scholarly journals ANALYSIS AND SIMULATION OFF-GRID PV PANELS BY USING MATLAB / SIMULINK ENVIRONMENT

2021 ◽  
pp. 97-105
Author(s):  
L. M. Abdali ◽  
H. A. Issa ◽  
Q. A. Ali ◽  
V. V. Kuvshinov ◽  
E. A. Bekirov
Keyword(s):  
Renewable Energy Sources ◽  
Storage System ◽  
Energy Storage System ◽  
Test System ◽  
Photovoltaic System ◽  
Photovoltaic Module ◽  
Operating Modes ◽  
Pv Module ◽  
Pv Modules ◽  
Generating System

The use of renewable energy sources and in particular solar energy has received considerable attention in recent decades. Photovoltaic (PV) energy projects are being implemented in very large numbers in many countries. Many research projects are carried out to analyze and verify the performance of PV modules. Implementing a pilot plant for a photovoltaic power system with a DC / DC converter to test system performance is not always possible due to practical limitations. The software simulation model helps to analyze the performance of PV modules, and more useful would be a general circuit model that can be used to test any commercial PV module. This paper presents a simulation of a mathematical model of a photovoltaic module that boosts a DC / AC converter and also simulates the operating modes of a solar generating system at various load characteristics. The model presented in this article can be used as a generalized PV module to analyze the performance of any commercially available PV module. In the presented work, the parameters that affect the performance of the generating system were investigated. The results were obtained for the operation of DC/AC photoelectric converters. The presented characteristics strongly depend on such parameters as solar insolation, the temperature of the working surface of the photovoltaic module, the charge-discharge time of storage batteries, etc. When one of the values ​​of these parameters changes, the operating modes of the solar power generating battery change. Changing the operating modes can lead to malfunctions of the entire operation of the system, therefore, it is necessary to control all the energy characteristics of the installation. The actions proposed in this work aimed at studying the operation of the photovoltaic system and the energy storage system, as well as the use of the necessary auxiliary devices for monitoring and controlling the parameters of the installation, are capable of achieving an increase in the efficiency of the generation of the system. The studies carried out in the course of the presented work make it possible to increase the level of knowledge on the control and management of the parameters of photovoltaic generating plants and expand the possibilities of their uninterrupted operation and increase energy production.

Design of Sine Wave Inverter Power Supply Based on STM32

2014 ◽  
Vol 608-609 ◽  
pp. 944-948 ◽  
Author(s):  
Ling Wang
Keyword(s):  
Software Design ◽  
Power Supply ◽  
Output Voltage ◽  
High Performance ◽  
High Reliability ◽  
Sine Wave ◽  
Photovoltaic Power ◽  
Harmonic Content ◽  
Inverter Power Supply ◽  
Hardware Circuit

The paper design a high performance 20KW grid inverter based on STM processor, and describes the overall structure of the inverter, and design the hardware circuit and the software design scheme; finally produce the prototype and test. The experimental results show that: in the condition of rated power inverter can stabilize output valid values of 220V 3%, frequency is sine wave AC 50HZ, output voltage has small harmonic content and high reliability, and has a good application prospect in the field of photovoltaic power generation.

ADAPTIVE ALGORITHMS OF CONTROLLING THE SMART LI-ION BATTERY CONTROLLER

2018 ◽  
pp. 104-110
Author(s):  
I. A. Borovoy ◽  
O. V. Danishevskiy ◽  
A. V. Parfenov
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Electric Energy ◽  
Lithium Ion ◽  
Control Device ◽  
Control Algorithms ◽  
Battery System ◽  
Electronic Control Device ◽  
Li Ion ◽  
Cell Balancing

The article substantiates the necessity of organizing the control system of modern lithium-ion batteries. Passive and active methods of cell balancing are described. The method of increase of efficiency of modes of accumulation of electric energy by means of the special electronic control device (the intellectual controller) and its further use for power supply of the functional equipment is considered. The structure of the intelligent controller as a part of the autonomous power supply system with the description of its main functional units and purpose is presented. Practical results of application in the intellectual controller of original adaptive control algorithms defining modes of operation of lithium-ion drives depending on various environmental conditions are resulted. The results of the analysis obtained by the results of experimental operation of the battery system, reflecting the qualitative and quantitative advantages of the proposed method.

Enhancing Co/Co2VO4 Li-ion Battery Anode Performances via 2D-2D Heterostructure Engineering

Nanoscale ◽  
2021 ◽  
Author(s):  
Kun Wang ◽  
Yongyuan Hu ◽  
Jian Pei ◽  
Fengyang Jing ◽  
Zhongzheng Qin ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
Output Voltage ◽  
High Capacity ◽  
Lithium Ion ◽  
Li Ion Battery ◽  
Li Ion ◽  
Battery Anode

High capacity Co2VO4 becomes a potential anode material for lithium ion batteries (LIBs) benefiting from its lower output voltage during cycling than other cobalt vanadates. However, the application of this...

scholarly journals A compact tube-in-tube microsized lithium-ion battery as an independent microelectric power supply unit

2021 ◽  
pp. 100429
Author(s):  
Qunhong Weng ◽  
Sitao Wang ◽  
Lixiang Liu ◽  
Xueyi Lu ◽  
Minshen Zhu ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Power Supply ◽  
Lithium Ion ◽  
Power Supply Unit
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