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Related Concept Videos

Electrical Energy01:10

Electrical Energy

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Using electric appliances for a longer period of time consumes more electrical energy and results in a higher electric bill. The energy produced by the transfer of electrons from one point to another is known as electrical energy. If power is delivered at a constant rate, the electrical energy can be defined as the product of power used by the device for a period of time. The energy unit on electric bills is the kilowatt-hour, where one kilowatt-hour is equivalent to 3.6 × 106 joules.
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Energy and Power Signals01:17

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In an electrical system with a resistor, voltage and current signals facilitate the measurement of power and energy across the resistor. For a continuous-time signal, the total energy over a time interval is defined as the integral of the square of the signal's magnitude over that interval. Mathematically, this is expressed as:
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Electrical Power01:07

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Electric power is the product of current and voltage, represented in units of joules per second, or watts. For example, cars often have one or more auxiliary power outlets with which you can charge a cell phone or other electronic devices. These outlets may be rated at 20 amps and 12 volts, so that the circuit can deliver a maximum power of 240 watts. Consider a 25 Watt bulb and a 60 Watt bulb. The conversion of electrical energy produces heat and light, while the kinetic energy lost by the...
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Multimachine Stability01:25

Multimachine Stability

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Multimachine stability analysis is crucial for understanding the dynamics and stability of power systems with multiple synchronous machines. The objective is to solve the swing equations for a network of M machines connected to an N-bus power system.
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
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Maximum Power Flow and Line Loadability01:23

Maximum Power Flow and Line Loadability

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The maximum power flow for lossy transmission lines is derived using ABCD parameters in phasor form. These parameters create a matrix relationship between the sending-end and receiving-end voltages and currents, allowing the determination of the receiving-end current. This relationship facilitates calculating the complex power delivered to the receiving end, from which real and reactive power components are derived.
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Energy Budgets00:51

Energy Budgets

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Organisms must balance energy intake with the energy required for growth, maintenance and reproduction. These trade-offs result in a variety of survivorship and reproductive strategies, including semelparity and iteroparity. Semelparous species, like annual plants, have only one reproductive episode in their lifetimes and consequently have short lifespans. Iteroparous species, by contrast, have many reproductive events during their lifetimes but have relatively few offspring. These two...
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Related Experiment Video

Updated: Oct 10, 2025

Author Spotlight: Enhancement of Salient Object Detection for Smart Grid Applications
03:31

Author Spotlight: Enhancement of Salient Object Detection for Smart Grid Applications

Published on: December 15, 2023

677

Energy Consumption Forecasting for Smart Meters Using Extreme Learning Machine Ensemble.

Paulo S G de Mattos Neto1, João F L de Oliveira2, Priscilla Bassetto3

  • 1Centro de Informática, Universidade Federal de Pernambuco, Recife 50740-560, Brazil.

Sensors (Basel, Switzerland)
|December 10, 2021
PubMed
Summary
This summary is machine-generated.

This study introduces an ensemble model for accurate energy consumption forecasting using smart meter data. The novel approach combines multiple models, outperforming existing methods for better power grid management.

Keywords:
Box and Jenkins modelsenergy consumptionensemblesforecastingneural networkssmart metering

Related Experiment Videos

Last Updated: Oct 10, 2025

Author Spotlight: Enhancement of Salient Object Detection for Smart Grid Applications
03:31

Author Spotlight: Enhancement of Salient Object Detection for Smart Grid Applications

Published on: December 15, 2023

677

Area of Science:

  • Energy Systems Engineering
  • Artificial Intelligence
  • Data Science

Background:

  • Smart meters are crucial for monitoring energy consumption, aiding power generation planning and management.
  • Accurate energy consumption forecasting enhances decision-making and improves demand predictability for energy providers.

Purpose of the Study:

  • To develop and evaluate a data-driven ensemble model for one-step-ahead energy consumption forecasting.
  • To combine statistical and artificial neural network models for improved forecasting accuracy.

Main Methods:

  • An ensemble model was created by combining five forecasting models: linear autoregressive, radial basis function, multilayer perceptron, extreme learning machines, and echo state networks.
  • Extreme learning machines were utilized as the combination model for their efficiency and generalization capabilities.
  • The ensemble model was trained and tested using real smart meter energy consumption data.

Main Results:

  • The proposed ensemble model demonstrated superior performance compared to individual models and other existing methods.
  • The model's effectiveness was validated using five distinct performance metrics.
  • The ensemble approach significantly improved the accuracy of one-step-ahead energy consumption forecasts.

Conclusions:

  • The developed data-driven ensemble model offers a highly effective solution for energy consumption forecasting.
  • This approach enhances the predictability of energy demand, supporting efficient power generation and grid management.
  • The findings highlight the potential of ensemble methods, particularly those leveraging extreme learning machines, in energy analytics.