HIFDA - High-Frequency Electrical Voltage and Current Signals from Household Appliances.
Víctor M Navarro1, Marta Barragán2, Rubén Nieto3
1Electronics Department, University of Alcala, Alcalá de Henares, 28805, Spain. victormanuel.navarro@uah.es.
Scientific Data
|March 29, 2025
Summary
Researchers developed a new high-frequency dataset, HIFDA, to improve Non-Intrusive Load Monitoring (NILM) accuracy. This dataset aids in better appliance classification and energy disaggregation for smart grids.
Area of Science:
- Electrical Engineering
- Computer Science
- Energy Systems
Background:
- Smart grids require efficient energy management through Non-Intrusive Load Monitoring (NILM).
- Existing NILM datasets have limitations like low sampling rates and lack of steady-state data, hindering appliance detection.
- High sampling rates are crucial for accurate appliance classification and identifying low-power devices.
Purpose of the Study:
- Introduce the HIgh Frequency household electrical signals DAtaset (HIFDA) for advanced NILM research.
- Provide a high-frequency dataset suitable for training and validating machine learning models in NILM applications.
- Address the limitations of current datasets by offering high sampling rates and steady-state data.
Main Methods:
- Collected high-frequency (100 kSPS) steady-state electrical signals from 14 household appliances and an empty grid.
- Utilized a custom System-on-Chip (SoC) device for data acquisition.
- Focused on active power consumption and incorporated multiple time windows for comprehensive analysis.
Main Results:
- Developed HIFDA, a novel dataset with high-frequency electrical signals.
- The dataset captures steady-state consumption patterns essential for NILM.
- HIFDA includes data from 14 appliances and the empty grid, offering diverse usage scenarios.
Conclusions:
- HIFDA is a valuable resource for advancing NILM techniques and smart grid energy management.
- The high sampling rate and steady-state data in HIFDA improve appliance classification accuracy.
- This dataset supports research in NILM and other applications requiring detailed electrical signal analysis.
Related Concept Videos
Electrical Current
6.8K
Electrical current is defined as the rate at which charge flows. When there is a large current present, such as that used to run a refrigerator, a large amount of charge moves through the wire in a small amount of time. If the current is small, such as that used to operate a handheld calculator, a small amount of charge moves through the circuit over a long period of time. The SI unit for current is the ampere (A), named for the French physicist André-Marie Ampère (1775–1836).
6.8K
Electrical Energy
1.6K
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.
1.6K
Household Wiring And Electrical Safety
1.8K
Companies that supply power to most modern households use three conductors, typically called a three-wire line. While one is neutral, the other two are both at 120 V but with opposite polarity, giving a voltage of 240 V between them. With a three-wire line, high-power appliances that require 240 V, such as electric stoves and clothes dryers, are linked between the two hot lines. 120 V appliances can be connected between the neutral and either of the hot lines. The neutral side, which is always...
1.8K
Faraday's Law
5.3K
Faraday's law state that the induced emf is the negative change in the magnetic flux per unit of time. Any change in the magnetic field or change in the orientation of the area of the coil with respect to the magnetic field induces a voltage (emf). The magnetic flux measures the number of magnetic field lines through a given surface area. Magnetic flux is estimated from the integral of the dot product of the magnetic field vector and the area vector. The negative sign describes the...
5.3K
AC Sources
3.5K
Direct current is a flow of electric charge in only one direction and has a steady state of constant voltage in the circuit. Rectifiers, batteries, commutator-equipped generators, and fuel cells are some examples of devices that generate direct current. Nowadays, most applications use a time-varying voltage source. Alternating current is a flow of electric charge that periodically reverses direction. An alternating current is produced by an alternating emf that is generated in a power plant. If...
3.5K
Generating Electromagnetic Radiations
8.7K
The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in...
8.7K


