scholarly journals PERANCANGAN SISTEM TRANSFER ENERGI SECARA WIRELESS DENGAN MENGGUNAKAN TEKNIK RESONANSI INDUKTIF MEDAN ELEKTROMAGNETIK

2014 ◽  
Vol 2 (2) ◽  
Author(s):  
Berri M Panggabean ◽  
Herman Halomoan ◽  
Nining Purwasih
Keyword(s):  
Energy Transfer ◽  
Low Voltage ◽  
Human Life ◽  
Slope Angle ◽  
Electric Energy ◽  
Electrical Energy ◽  
Mutual Inductance ◽  
Receiver Coil ◽  
Power Cable ◽  
Wireless Energy Transfer

Abstrak  Energi listrik merupakan salah satu kebutuhan pokok yang sangat penting dalam kehidupan manusia saat ini, di mana sampai saat ini pengiriman energi listrik komersial tegangan rendah 220 volt masih mempergunakan kabel listrik. Salah satu cara pengiriman atau transfer energi listrik yang terus dikembangkan sampai saat ini adalah transfer energi listrik  wireless.  Transfer energi listrik  wireless  memiliki  beberapa  kelebihan  dibandingkan menggunakan kabel  yaitu  dapat  meningkatkan kenyamanan dalam penggunaan peralatan listrik  dan  dapat mengurangi jumlah sampah elektronik. Metode yang digunakan untuk  transfer energi wireless pada tugas akhir ini menggunakan  teknik  resonansi induktif medan elektromagnetik.  Pengguna membuat  dua buah  kumparan tembaga berbentuk selenoid yang digunakan untuk menghasilkan induktansi bersama. Rangkaian transfer energi listrik wireless terdiri dari dua yaitu rangkaian pengirim dan rangkaian penerima. Rangkaian pengirim terdiri dari rangkaian LC osilasi dan rangkaian penerima merupakan penggabungan beberapa komponen elektronika.  Realisasi alat bekerja dengan baik dengan pengaturan komponen yang sesuai. Namun pengaruh jarak dan sudut kemiringan antar kumparan sangat mempengaruhi nilai energi listrik yang mampu ditransfer. Semakin jauh jarak antar kumparan,  maka semakin kecil energi yang mampu ditrasfer, demikian juga dengan sudut kemiringan kumparan. Semakin miring sudut kumparan penerima, maka semakin kecil energi listrik yang dihasilkan. Kata kunci :  induktansi bersama,   kumparan tembaga, rangkaian pengirim, rangkaian penerima, transfer energi wireless. Abstract  Electrical energy is one of the basic needs that are essential in human life today,  where until today the delivery of electrical energy commercial low voltage 220 volts still using power cable. One way of delivery or transfer of electric energy are constantly being developed to date  is the transfer of electrical energy wireless. Transfer of electrical energy wireless has several advantages over using a cable that can increase comfort in the use of electrical equipment and can reduce the amount of electronic waste. The method used for  wireless energy transfer in this paper uses an resonance techniques inductive electromagnetic field. User create two shaped copper solenoid coils used to generate the mutual inductance. Wireless electrical energy transfer circuit consists of two circuits that the transmitter and receiver circuit. Transmitter circuit consists of a series LC oscillation andreceiver circuit is a merger several electronic components. Realization tool works well with setting the appropriate components. However, the effect of distance and tilt angle between the coil greatly affect the value of the electricity that is able to be transferred. The farther away the distance between the coils, the smaller energy capable to be transfer. as well as the slope angle the coil. The more sloping angle of the receiver coil, the smaller the electric energy is generated.  Key word : mutual inductance, copper coils, transmitter circuit, receiver circuit, wireless energy transfer 

ANÁLISE COMPARATIVA DO CUSTO PARA APLICAÇÃO DE UMA LÂMINA DE IRRIGAÇÃO UTILIZANDO ENERGIA ELÉTRICA E DIESEL

2016 ◽  
Vol 31 (3) ◽  
pp. 259
Author(s):  
Arionaldo De Sá Júnior ◽  
Jacinto de Assunção Carvalho
Keyword(s):  
Low Voltage ◽  
Electric Energy ◽  
Electrical Energy ◽  
Minas Gerais ◽  
Linear Increase ◽  
Energy Company ◽  
Cost Of Energy ◽  
Irrigation Depth ◽  
Tariff Rates ◽  
The Cost

Objetivou-se com a realização deste trabalho, estimar o custo com energia elétrica e à diesel para aplicação de 1 milímetro de lâmina de irrigação em uma área de 1 hectare. O grupo tarifário considerado foi o “B” para baixa tensão e subgrupo “B2 - Rural”. Os valores tarifários aplicados foram obtidos na Companhia energética de Minas Gerais – CEMIG. O valor adotado para o diesel foi respectivo à média observada na região sul de Minas Gerais no segundo semestre de 2012. Para efeito de cálculos, os rendimentos globais do conjunto motobomba e alturas manométricas totais adotadas foram, respectivamente; 60%, 65%, 70%, 75% e 10, 25, 75, 100, 125, 150, 175 e 200 m.c.a. Para o cálculo do custo total com a aplicação da lâmina de 1mm ha-1 foi considerado que o custo com a energia na atividade de irrigação representa 65% e 75% para elétrica e diesel, respectivamente. Os resultados obtidos mostram um crescimento linear dos custos com energia com o aumento da altura manométrica total. A utilização de sistemas motobomba mais eficientes reduz o custo com energia elétrica na ordem de 7% a 20% e diesel entre 4% a 16%, para as situações propostas.Em todos os casos a energia elétrica é mais favorável com relação ao custo.Palavras-chave: Lâmina de irrigação, Motobomba, Tarifa, Grupo tarifário.COMPARATIVE ANALYSIS OF THE COST OF AN IRRIGATION DEPTH USING ELECTRIC ENERGY AND DIESELABSTRACT: The aim of this study was to estimate the cost of electricity and diesel use for application of 1 mm water depth in an area of 1 hectare. The tariff group considered was "B" for low voltage and subgroup "B2 - Rural". The applied tariff rates were obtained from the energy company of Minas Gerais - CEMIG. The value adopted for a liter of diesel fuel was the average observed in the southern region of Minas Gerais in the second semester  of 2012. To do the  calculation, the overall yields adopted for  the whole pump and manometer total elevation  were, respectively, 60%, 65%, 70%, 75% and 10, 25, 75, 100, 125, 150, 175, 200 meters of water column. To calculate the total cost of 1mm ha-1 application, it was considered that the cost of energy on irrigation activity represents 65% and 75% for electricity and diesel, respectively. The results showed a linear increase of energy costs by increasing the manometer total elevation. The use of more efficient pump systems reduces the cost of electric power in the range of 7% to 20% and of diesel by 4% to 16% considering the proposed situations. In all cases, the electrical energy is more advantageous regarding the cost.Keywords: Depth irrigation, Motor-pump, Tariff, Tariff Group.

scholarly journals Perencanaan Pembangkit Listrik Tenaga Surya Hybrid Pada Area Parkir Gedung Dinas Cipta Karya, Dinas Bina Marga Dan Pengairan Kabupaten Badung

2018 ◽  
Vol 5 (2) ◽  
pp. 67
Author(s):  
Eric Timotius Abit Duka ◽  
I Nyoman Setiawan ◽  
Antonius Ibi Weking
Keyword(s):  
Energy Supply ◽  
Electrical Power ◽  
Slope Angle ◽  
Electric Energy ◽  
Electrical Energy ◽  
Electrical Energy Consumption ◽  
Power Requirement ◽  
Solar Module ◽  
Increasing Demand ◽  
Manual Calculation

The increasing demand for electrical energy in Bali requires additional electrical energy supply, while conventional energy such as petroleum, coal and natural gas continue to be used. Therefore, the utilization of non-conventional energy like solar energy should be increased. One of provision of non-conventional electric energy which is ready to be widely used is using PLTS Photovoltaic technology. The data analysis in this study uses manual calculation method to calculate electric power requirement, setting the result for electrical power, calculating the amount and capacity for solar module and inverter, calculating slope angle and location of solar module. PLTS uses a hybrid system with PLN, which works automatically to be controlled by the inverter control system. PLTS capacity of 148,274 kW supply 30% of the electrical energy consumption in the building of 2,310 MWh.

scholarly journals A New Arrangement of Active Coils for Wireless Charging of UAV

Energies ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5754
Author(s):  
Zhengwang He ◽  
Zhiyong Li ◽  
Ruoyue Wang ◽  
Ying Fan ◽  
Minqian Xu
Keyword(s):  
Electric Energy ◽  
Transmission Efficiency ◽  
Mutual Inductance ◽  
Receiver Coil ◽  
Wireless Power ◽  
Design And Optimization ◽  
Charging System ◽  
Aerial Vehicle ◽  
Simulation Results ◽  
Single Receiver

This paper presents the design and optimization of a wireless power transfer (WPT) charging system based on magnetically coupled resonant technology, applied to an Unmanned Aerial Vehicle (UAV). In this paper, a charging system, including dual active transmitter coils and a single receiver coil, is proposed. The dual transmitting coils adopt a coaxial structure with different radii. This structure simplifies the calculation of the complex mutual inductance between the coils to a function of mutual inductance only related to the value of the radial misalignment. Aiming toward a constant charging power, the optimal transmission efficiency of electric energy is achieved by controlling the input voltages of the active coils, which are solved via a set of equations defined as Lagrange multipliers. The simulation results of the 570 V and 85,000 Hz system verified the validity of the proposed wireless UAV charging scheme.

Neutral Point Type Buck-Boost Converter Circuit Application for Wireless Energy Transfer

2015 ◽  
Vol 785 ◽  
pp. 91-95
Author(s):  
Muhamad Amin Ahmad ◽  
Rijalul Fahmi Mustapa ◽  
Ilham Rustam ◽  
Harizan Che Mat Haris Mohd ◽  
Nabil Hidayat
Keyword(s):  
Energy Transfer ◽  
High Efficiency ◽  
Limited Range ◽  
Neutral Point ◽  
Receiver Coil ◽  
Wireless Energy Transfer ◽  
Transfer Energy ◽  
Voltage Output ◽  
Receiving Coil ◽  
Point Type

In this paper, a design circuit of neutral point type buck boost has been utilized for wireless transfer energy application. Resonance magnetic field was used as the preferred wireless energy transfer approach due to its ability to generate high efficiency and an increased in distance between the transmitting and receiving coil. The constructed circuit has been found to be able to transmit a DC voltage output to the receiver coil with relatively small ripple voltage output at a limited range of around 15 centimetres.

scholarly journals Evaluation of Electric Energy Losses in Kirkuk Distribution Electric System Area

2011 ◽  
Vol 7 (2) ◽  
pp. 144-150
Author(s):  
Sameer Mustafa ◽  
Mohammed Yasen ◽  
Hussein Abdullah
Keyword(s):  
Power Systems ◽  
Distribution System ◽  
Low Voltage ◽  
Power Transformer ◽  
Electrical Power ◽  
Electric Energy ◽  
Electrical Energy ◽  
Energy Losses ◽  
Voltage Transformer ◽  
Electric System

Correct calculations of losses are important for several reasons. There are two basic methods that can be used to calculate technical energy losses, a method based on subtraction of metered energy purchased and metered energy sold to customers and a method based on modeling losses in individual components of the system. For considering the technical loss in distribution system included: transmission line losses, power transformer losses, distribution line losses and low-voltage transformer losses. This work presents an evaluation of the power losses in Kirkuk electric distribution system area and submit proposals and appropriate solutions and suggestions to reduce the losses. A program under Visual Basic was designed to calculate and evaluate electrical energy losses in electrical power systems.

scholarly journals Electrical excitation of the local earth for resonant, wireless energy transfer

2016 ◽  
Vol 3 (2) ◽  
pp. 117-125 ◽  
Author(s):  
C. W. Van Neste ◽  
Richard Hull ◽  
J. E. Hawk ◽  
Arindam Phani ◽  
Martyn J. Unsworth ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Surface Potential ◽  
Potential Gradient ◽  
Electrical Energy ◽  
Operating Parameters ◽  
System Efficiency ◽  
Electrical Excitation ◽  
Wireless Energy Transfer ◽  
Distributed Energy ◽  
Power Devices

Here we demonstrate wireless energy transfer that exploits the conductivity and permittivity of soil to create a potential gradient on the surface around an earthed electrode, distributing electrical energy over the area. This generated surface potential can be amplified using a special standing-wave receiver for harnessing the distributed energy. We have experimentally mapped the surface potential around the electrode and plotted the received energy covering an area of 1200 m2. Key operating parameters are determined with a discussion on optimizing the system efficiency. This technique could address the challenge of distributing electrical energy to many low power devices over large outdoor areas without the use of wires.

scholarly journals Analysis of the Coupling Coefficient in Inductive Energy Transfer Systems

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Rafael Mendes Duarte ◽  
Gordana Klaric Felic
Keyword(s):  
Energy Transfer ◽  
Coupling Coefficient ◽  
High Efficiency ◽  
Good Accuracy ◽  
Elliptic Integral ◽  
Power Source ◽  
Mutual Inductance ◽  
Electrical Load ◽  
Wireless Energy Transfer ◽  
Static State

In wireless energy transfer systems, the energy is transferred from a power source to an electrical load without the need of physical connections. In this scope, inductive links have been widely studied as a way of implementing these systems. Although high efficiency can be achieved when the system is operating in a static state, it can drastically decrease if changes in the relative position and in the coupling coefficient between the coils occur. In this paper, we analyze the coupling coefficient as a function of the distance between two planar and coaxial coils in wireless energy transfer systems. A simple equation is derived from Neumann’s equation for mutual inductance, which is then used to calculate the coupling coefficient. The coupling coefficient is computed using CST Microwave Studio and compared to calculation and experimental results for two coils with an excitation signal of up to 10 MHz. The results showed that the equation presents good accuracy for geometric parameters that do not lead the solution of the elliptic integral of the first kind to infinity.

Improving the Transfer Efficiency of a Wireless Energy Transfer System Using Multiple Coils

2013 ◽  
Vol 860-863 ◽  
pp. 2275-2278
Author(s):  
Hon Tat Hui ◽  
Shi Pu ◽  
Marcus Choo Ann Loong
Keyword(s):  
Energy Transfer ◽  
High Efficiency ◽  
Energy Transfer Efficiency ◽  
Transfer Efficiency ◽  
Receiver Coil ◽  
Wireless Energy Transfer ◽  
Large Power ◽  
Room Size ◽  
Coil Method ◽  
Multiple Transmission

This study is to suggest using multiple transmission coils to improve the energy transfer efficiency of a wireless energy transfer (WET) system which aims to power electronic appliances such mobile phones, labtops, iPads, etc, without using cables. The original WET system consists of a large room-size transmission coil transferring energy wirelessly to a small receiver coil built insider an electronic appliance. The newly proposed system is to replace the single transmission coil with 3 orthogonally aligned transmission coils. The aim is to create a multi-oriented magnetic field so that energy transfer efficiency will be relatively more stable when the receiver coil changes in orientation. Our simulation results show that at some worse-situation orientations of the receiver coil, the increase in transfer efficiency is many folds, from 0.4% in the worse situation to a 2.75% after using the multiple-transmission-coil method. This, to some extent, safeguards the wireless charging process from a large power drop to a much smaller power drop during possible random motions of the receiver. But, on the other hand, the improvements obtained from the proposed system in the normal high-efficiency situations are not very significant.

Developing Wireless Energy Transfer Systems Using Microwave Beams: Applications and Prospects

2001 ◽  
Vol 55 (2) ◽  
pp. 10 ◽  
Author(s):  
A. A. Konovaltsev ◽  
Yu. A. Luchaninov ◽  
M. A. Omarov ◽  
Viktoriya M. Shokalo
Keyword(s):  
Energy Transfer ◽  
Wireless Energy Transfer ◽  
Microwave Beams

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.

Sign in / Sign up

Export Citation Format

Share Document