Power Grid Capacity Forecasting Based on Electrical Energy Requirements Considering Macroeconomic Factor in Malang Regency

2018 ◽  
Author(s):  
Ilham Taufiqi ◽  
Yuni Rahmawati ◽  
A. N. Afandi
Keyword(s):  
Power Grid ◽  
Electrical Energy ◽  
Energy Requirements ◽  
Macroeconomic Factor

Characteristics of a Solar Pond Brine Reconcentration System

1994 ◽  
Vol 116 (2) ◽  
pp. 69-73 ◽  
Author(s):  
T. A. Newell ◽  
M. K. Smith ◽  
R. G. Cowie ◽  
J. M. Upper ◽  
C. L. Cler
Keyword(s):  
Experimental Data ◽  
Electrical Energy ◽  
Energy Requirements ◽  
Evaporation Process ◽  
Evaporation Surface ◽  
University Of Illinois ◽  
Solar Pond ◽  
Salt Gradient ◽  
The University ◽  
Good Agreement

An active brine reconcentration system has been incorporated into the design of the University of Illinois half-acre salt gradient solar pond facility. An important feature of the system is its ability to keep precipitation from diluting the brine. Experimental data presented is in good agreement with a numerical simulation model of the evaporation process. The “film”-type evaporation process used in the system efficiently collects solar energy for evaporating water from brine. Parasitic electrical energy requirements for the evaporation system are 1.2 watts per square meter of evaporation surface area.

Identification of Power Grid Lines with Increased Power Losses Using Mobile Electric Meters and Timers

2020 ◽  
pp. 31-36
Author(s):  
Aleksandr V. Vinogradov ◽  
Aleksey V. Bukreyev ◽  
Alina V. Vinogradova ◽  
Vadim E. Bol’shev
Keyword(s):  
Single Phase ◽  
Power Grid ◽  
Electricity Consumption ◽  
Electrical Energy ◽  
Research Purpose ◽  
Power Losses ◽  
Electric Networks ◽  
Operating Modes ◽  
Three Phase ◽  
Quality Of Electrical Energy

Identifying sections of 0.4 kilovolt power grid lines with increased power losses is an urgent task, the solution of which will free up some of the funds spent by power grid companies to compensate for power losses and direct them to the reconstruction and modernization of electric networks. It is necessary to monitor electricity consumption on sections of power grid lines and on the connections of consumers, and compare data on consumption. Existing devices that analyze the quality of electrical energy and can control current and power in the network, such as power quality analyzers, do not have the full necessary qualities, since they are intended for other purposes, and they are also very expensive. (Research purpose) The research purpose is in developing technical means for identifying sections of 0.4 kilovolt power grid lines with increased power losses, which also allow performing a survey of operating modes of power grid lines. (Materials and methods) The article presents a review of literary sources and an analysis of statistical data. (Results and discussion) The article presents developed technical tools for inspection of power grid lines of 0.4 kilovolts and identification of areas with increased losses of electrical energy, portable single-phase and three-phase electric meter and timer. The single-phase mobile electric meter and timer can be used for the survey of single-phase connections of consumers, three-phase one can be used for the survey of any sections of power lines. Authors also developed a version of the portable electric meter and timer with up to six independent sensors. (Conclusions) It is most rational to use a version of the mobile meter and timer equipped with Wi-Fi data transmission technology to detect power losses on sections of 0.4 kilovolts power grid lines, since in this case simultaneous monitoring of several sections is provided with the possibility of obtaining information from sensors in real time. The data allow to calculate technological and commercial losses on power line sections and draw conclusions about whether they are overstated.

Electrical Energy Requirements for Accelerator and Fusion Neutrons

2001 ◽  
Vol 40 (1) ◽  
pp. 52-55 ◽  
Author(s):  
Daniel L. Jassby ◽  
John A. Schmidt
Keyword(s):  
Electrical Energy ◽  
Energy Requirements ◽  
Fusion Neutrons

scholarly journals Smart Grid Virtualisation for Grid-Based Routing

Electronics ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1879
Author(s):  
Armin Veichtlbauer ◽  
Alexander Heinisch ◽  
Ferdinand von von Tüllenburg ◽  
Peter Dorfinger ◽  
Oliver Langthaler ◽  
...  
Keyword(s):  
Electric Vehicles ◽  
Smart Grids ◽  
Power Grid ◽  
Electrical Power ◽  
Electrical Energy ◽  
Communication Infrastructure ◽  
Medium Voltage ◽  
Heating And Cooling ◽  
Correct Data ◽  
Load Impact

Due to changed power consumption patterns, technological advance and deregulation, the appearance of the power grid in the low and medium voltage segment has changed. The spread of heating and cooling with electrical energy and an increase of electric vehicles as well as the broad rollout of photovoltaic systems has a major impact on the peak power demand of modern households and the volatility smart grids have to face. Thus, besides the load impact of the growing population of electric vehicles, modern households are not only consumers of electrical power, but also power producers, so called prosumers. The rising number of prosumers and the limitations of grid capacities lead to an increasingly distributed system of heterogeneous components, which have to be managed and operated with locality and scalability in mind. Virtualisation technologies, particularly known as state of the art in data centre computing, can lead to a paradigm shift needed to meet the growing demands of this evolution. A key issue here is to forward data to the correct data sinks, where data are required in order to keep the grid balanced. This routing process has to be able to react on grid changes in a timely manner, i.e., it must be based on the instantaneous state of the grid. In this paper, we propose a solution based on virtualising the communication infrastructure in the low and medium voltage grid. We evaluate two different approaches. The first approach is based on SDN; an ONOS SDN controller is used to change the behaviour of the communication infrastructure according to information provided by components of the power grid. The second approach uses Coaty and a Mosquitto MQTT broker to deliver messages to the desired endpoint, again based on information from the power grid.

scholarly journals Perhitungan Kebutuhan Daya Listrik untuk Penggerak Perahu Nelayan Bertenaga Surya

CYCLOTRON ◽  
2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Radiratu K ◽  
Belly Yan Dewantara
Keyword(s):  
Free Energy ◽  
Renewable Energy ◽  
Solar Energy ◽  
Electric Energy ◽  
Electrical Energy ◽  
Energy System ◽  
Energy Requirements ◽  
Solar Panels ◽  
Fishing Boat ◽  
Body Design

Abstrak - Perahu merupakan salah satu armada yang digunakan para nelayan untuk mencari mata pencaharian. Namun pada umumnya pada saat perahu nelayan beropesi mengandalkan bahan bakar sebagai penggerak kapal, hal ini sangatlah tidak menguntungkan mengingat harga bahan bakar semakin mahal. Pada penelitian ini akan membahas desain dan perhitungan daya listrik penggerak perahu nelayan dimana enegi listrik didapat dari energi surya. Dengan adanya sistem pemanfaatan energi surya ini akan menghemat pengeluaran nelayan bahkan bisa dikatakan bahwa energi ini merupakan energi cuma-cuma atau gratis. Pada penelitian ini akan dihitung desain bodi perahu dengan kapasitas 2-3 orang, perhitungan kebutuhan alat penggerak, perhitungan kebutuhan energi listrik dan perhitungan panel surya yang akan digunakan. Hasil dari penelelitian ini dapat dijadikan kajian untuk pengembangan perahu ramah lingkungan, ekonomis, dan pemanfatan enegi surya yang merupakan energi terbarukan. Kapal yang dirancang mempunyai dimensi 3 meter dan lebar 1,33 meter dengan kecepatan 3-4 knot dan menggunakan panel surya dengan spesifikasi 150Wp sebanyak 3 buah.Kata kunci: perahu nelayan, energi penggerak kapal, panel surya, energi terbarukan, MPPTAbstract—Boat is one of the fleets that fishermen use livelihoods. But in general, when fishing boats oppose relying on fuel as a boat propeller, this is very unprofitable given the increasingly expensive. In this study will discuss the design and calculation of electric power driving a fishing boat where the electric energy is obtained from solar energy. Solar energy system will save fishermen's expenses. It can even be said that this energy is free energy. In this study the boat body design will be design with a capacity of 2-3 people, calculation of propulsion requirements, calculation of electrical energy requirements and calculation of solar panels to be used. The results of this research can be used as a study for the development of environmentally friendly, economical boats and the utilization of solar energy which is renewable energy. The ship was designed to have dimensions of 3 meters and 1.33 meters wide with a speed of 3-4 knots and uses 3 solar panels with capasity 150Wp.Keywords: fishing boat, boat propulsion energy, solar panel, renewable energy, MPPT

scholarly journals The electrical energy impact of small-scale onsite generation: A case study of a 75 kWp grid-tied PV system

2020 ◽  
Vol 31 (4) ◽  
pp. 1-15
Author(s):  
Russel Mhundwa ◽  
Michael Simon ◽  
Joel Nana Yongoua
Keyword(s):  
Electrical Energy ◽  
Energy Requirements ◽  
Small Scale ◽  
Energy Yield ◽  
Eastern Cape ◽  
Solar Pv ◽  
Pv System ◽  
Total Load ◽  
Utility Grid ◽  
The Impact

This study presents an analysis of a 75 kWp grid-tied solar photovoltaic (PV) system with a grid tie limiter to provide energy requirements for an aquaculture centre in the Eastern Cape province of South Africa. A data acquisition system, comprising power and energy consumption meters, was deployed to measure solar PV generation, demand for the facility, and energy drawn from the utility grid. Statistical analysis was conducted on the data to determine the impact of the solar PV plant in reducing demand from the utility grid throughout the day, and this was extrapolated into monthly and annual contributions by the PV system to meeting the energy requirements. Findings reveal that the annual energy yield for the system was 1 864.29 kWh/kWp. The solar contribution to the total load requirement on a 24 hour cycle was 28% (139.82 MWh) from July 2018 to June 2019. Summer and winter average contributions by the PV system were 62% and 57% respectively for the period of 05:30–18:30. The mean monthly solar fraction for operating the farm between sunrise and sunset was 0.44. Furthermore, a total of 141.07 tCO2 has been avoided due to the operation of the PV system.

scholarly journals System of forming control signals by correction devices with creation of neural network patterns based on matrix analysis

2021 ◽  
Vol 266 ◽  
pp. 04010
Author(s):  
A. V. Manin ◽  
D. B. Vayner
Keyword(s):  
Power Flow ◽  
Reactive Power ◽  
Local Area Network ◽  
Power Grid ◽  
Electrical Energy ◽  
Matrix Analysis ◽  
Area Network ◽  
Distribution Grid ◽  
Control Signals ◽  
Reactive Power Flow

The compensating devices are controlled in the structure of the automatic control system in conjunction with the sensors included in a particular node of the power grid. But the overall state of the local power grid for the reactive power flow is not considered. It is proposed to generate control signals to correction devices by processing the information obtained by monitoring from remote sensors of voltage and current of the distribution grid. It is possible to use the matrix method of forming the control signals to correction devices to adjust the grid parameters. To improve the energy efficiency of correction devices in the monitoring structure, it is proposed to use static reactive power compensators (SVCs) based on magneto-valve elements. The proposed distribution grid monitoring structure with the transfer of information over a local area network from sensors to correction devices makes it possible to stabilize the required grid parameters among consumers and minimize the loss of electrical energy from reactive power flow.

scholarly journals Open data base analysis of scaling and spatio-temporal properties of power grid frequencies

2020 ◽  
Author(s):  
Leonardo Gorjão ◽  
Richard Jumar ◽  
Heiko Maass ◽  
Veit Hagenmeyer ◽  
G. Cigdem Yalcin ◽  
...  
Keyword(s):  
Power Systems ◽  
Data Base ◽  
Large Scale ◽  
Scaling Laws ◽  
Power Grid ◽  
Supply And Demand ◽  
Scaling Law ◽  
Open Data ◽  
Electrical Energy ◽  
Energy System

Abstract The electrical energy system has attracted much attention from an increasingly diverse research community. Many theoretical predictions have been made, from scaling laws of fluctuations to propagation velocities of disturbances. However, to validate any theory, empirical data from large-scale power systems are necessary but are rarely shared openly. Here, we analyse an open data base of measurements of electric power grid frequencies across 17 locations in 12 synchronous areas on three continents. The power grid frequency is of particular interest, as it indicates the balance of supply and demand and carries information on deterministic, stochastic, and control influences. We perform a broad analysis of the recorded data, compare different synchronous areas and validate a previously conjectured scaling law. Furthermore, we show how fluctuations change from local independent oscillations to a homogeneous bulk behaviour. Overall, the presented open data base and analyses may constitute a step towards more shared, collaborative energy research.

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