scholarly journals Exploration of influence of led spotlights on quality of electric energy

2021 ◽  
pp. 15-19
Author(s):  
V. P. Kuzmenko ◽  
◽  
S. V. Solyony ◽  
Keyword(s):  
Negative Impact ◽  
Electronic Devices ◽  
Electric Energy ◽  
Electrical Energy ◽  
Power Supplies ◽  
Electrical Load ◽  
Switching Power ◽  
Quality Of Electrical Energy ◽  
Electrical Installation

The results of the study and assessment of the quality of electrical energy measured at a separate phase in the existing electrical installation of the building, with a load in the form of LED floodlights are presented. The problem of the negative impact on the quality of electrical energy of switching power supplies of electronic devices, typical for this type of electrical load, is considered

scholarly journals Increasing the energy efficiency of an enterprise by point compensating of power quality distortions

2019 ◽  
Vol 140 ◽  
pp. 04010 ◽  
Author(s):  
Egor Zamyatin ◽  
Irina Voytyuk ◽  
Elena Zamyatina
Keyword(s):  
Power Quality ◽  
Electric Energy ◽  
Electrical Energy ◽  
Implementation Costs ◽  
Three Stages ◽  
Pareto Method ◽  
Compensating Devices ◽  
Quality Of Electrical Energy ◽  
The Cost

The cost of any product includes the cost of electrical energy in its production. Enterprises use various methods to reduce the cost of electric energy. One of the most common methods is to reduce the loss of active power in the distribution network of an enterprise. This is achieved by compensating for distortions in the power quality of electrical energy using compensating devices. The method presented in the article offers point compensation of distortions in the power quality indicators of electric energy. Point connection of compensating devices allows their small number to be used. But, at the same time, a greater effect is achieved. The connection points of compensating devices are determined by the developed method. The method includes three stages: collecting data on consumers of electric energy at an enterprise and on the topology of the distribution electric network, analyzing the results obtained using the developed algorithm, and determining connection points using the Pareto method. Also, the developed method was compared with the classical ones according to the criterion of the ratio of implementation costs to the effect of its application.

scholarly journals Discussion on the Application of New Photovoltaic Energy in Building Electrical Energy Saving

2020 ◽  
Vol 9 (1) ◽  
pp. 1
Author(s):  
Qian Yang
Keyword(s):  
Energy Conservation ◽  
Construction Industry ◽  
Construction Projects ◽  
Negative Impact ◽  
Rapid Development ◽  
Social Economy ◽  
Green Building ◽  
Electrical Energy ◽  
New Energy

<p>With the rapid development of social economy, the demand for new energy is also increasing, and then the problem of large consumption also has a negative impact on the development of the construction industry. Under the concept of green building, the design and construction units pay more attention to energy conservation and environmental protection, so they actively use photovoltaic new energy in the field of electrical energy conservation of construction projects, so as to improve people's quality of life. Starting from the principles and characteristics of building electrical energy conservation, this paper discusses the methods of building electrical energy conservation, and analyzes how to use photovoltaic new energy in the field of building electrical energy conservation, hoping to better practice the concept of energy conservation.</p>

scholarly journals Elimination of interharmonic currents by a FAP using the technique of compensation global

2020 ◽  
Vol 11 (1) ◽  
pp. 228
Author(s):  
Mohamed Ali Moussa ◽  
Bachir Belmadani ◽  
Ahmed Wahid Belarbi ◽  
Rachid Taleb
Keyword(s):  
Asynchronous Motor ◽  
Distribution Network ◽  
Harmonic Distortion ◽  
Electrical Energy ◽  
Electrical Network ◽  
Pwm Inverter ◽  
Three Phase ◽  
Source Current ◽  
Quality Of Electrical Energy

<p>This document is a contribution to improve the quality of electrical energy in the distribution network.<br />In this article we will present a method that allows us to clean up in a very considerable way the electrical network of both harmonics and inter harmonics provoked, basically by the ultrafast switches used when controlling a PWM inverter supplying a three-phase asynchronous motor. We notice that this method can be generalized for other loads creating inter-harmonics.<br />This proposed method was simulated using the MATLAB/SIMULINK software and had given remarkable results (there is a considerable reduction in total harmonic distortion (THD) of source current from 29.52% to 0.82%)</p>

Use of Capacitor Batteries to Improve the Quality of Electrical Energy

2021 ◽  
Author(s):  
Sergey Shevchenko ◽  
Dmytro Danylchenko ◽  
Dmytro Kuznetsov ◽  
Serhii Petrov
Keyword(s):  
Electrical Energy ◽  
Quality Of Electrical Energy

Piezoelectric Generators in the Energy Harvesting Systems

2016 ◽  
Vol 248 ◽  
pp. 243-248 ◽  
Author(s):  
Dariusz Grzybek
Keyword(s):  
Piezoelectric Material ◽  
Mechanical Energy ◽  
Electronic Devices ◽  
Electric Energy ◽  
Electrical Energy ◽  
Electronic System ◽  
Basic Element ◽  
Operating Costs ◽  
Harvesting Systems ◽  
And Storage

Piezoelectric generator is a device used to convert mechanical energy into electrical energy. The basic element of the generator is made from piezoelectric material in which electrical energy is created as a result of deformations caused by reactions of mechanical structure of the generator. The amount of obtained electrical energy depends mainly on the piezoelectric material used, construction of the generator as well as a type of the source of mechanical energy. Construction of the generator is adjusted to the type of the source of mechanical energy. In order to obtain electrical energy from mechanical vibrations, the most frequent solution is beam structure. Effective electric energy generation by the piezoelectric generators depends on the following main factors: piezoelectric material used, generator structure, electronic system of the control and storage of energy, and the generator size. Generated by piezoelectric generators electric energy, can be used to power of miniaturized electronic devices with low power supply demand. The goal may be monitoring of the structure or industrial processes in hardly accessible places or/and in systems requiring the use of a big number of sensors. It will make cutting the operating costs possible and allow to create the eco-friendly technology without waste discharged batteries.

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