New Challenges in Harmonics and Power Quality Research
A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "F1: Electrical Power System".
Deadline for manuscript submissions: closed (10 March 2022) | Viewed by 8323
Special Issue Editors
Interests: harmonics; voltage sags; rapid voltage changes; flicker; power quality; signal processing in power quality
Special Issue Information
Dear Colleagues,
The problems associated with quality of supply have been growing and have evolved with the evolution of the power network itself. The power quality indices in use today have been around for more than twenty years. New types of disturbances or greater frequency of occurrence of existing disturbances are increasing with the growth of new types of power generation, new equipment or existing equipment equipped with new technologies and require additional power quality indices to be properly tracked and studied. The application of the European Energy Efficiency Directive (EED) 2012/27/EU will accelerate this process even more due to the recommendation for the progressive substitution of equipment by more energy-efficient devices that decrease the greenhouse effect and energy consumption but will produce an increase in power oscillations, voltage fluctuations, voltage dips, new harmonic spectra, voltage unbalance, and flicker.
Some of the expected and possible adverse consequences for power quality of the introduction of new technologies in the power system are:
- Voltage fluctuations and voltage unbalance associated with the switching of distributed energy resources;
- New harmonic, supraharmonic, interharmonic, and even harmonic spectra in voltage and current waveforms associated with the use of distributed energy resources, new lighting technologies, the widespread use of power converters in many types of equipment or the use of non-linear loads with asymmetric voltage-current characteristics, which can have a detrimental effect on equipment;
- The growing use of low-voltage direct current distribution networks in commercial and residential buildings, data centers, industrial facilities or lighting equipment, requiring the definition and standardization of new indices for the accurate characterization of the energy supplied, as in the case of AC networks.
This new situation requires an update of the existing indices and the definition of new indices in order to provide additional information to better characterize the new power quality aspects in power system networks, the definition of new emission and immunity limits, as well as the development of new measurement techniques and new equipment.
This Special Issue has the aim of publishing original, outstanding contributions in these research areas. Topics of interest include but are not limited to measurement and analysis of harmonics, supra-harmonics, interharmonics, even harmonics and time-varying harmonics; definition of harmonic limits and their effect on equipment; measurement and characterization of voltage fluctuations, rapid voltage changes, and transient disturbances; power quality in DC distribution networks; flicker; signal processing in power quality; power quality instrumentation; and power quality indices.
Prof. Dr. Julio BarrosProf. Dr. Ramón I. Diego
Guest Editors
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Keywords
- harmonics
- supra-harmonics
- interharmonics
- even harmonics
- time-varying harmonics
- harmonic limits
- voltage fluctuations
- rapid voltage changes
- transient disturbances
- voltage sags/swells
- flicker
- power quality indices
- DC power quality
- power quality instrumentation
- signal processing in power quality
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