Results 21 to 30 of about 97,586 (297)
Single-Phase Microgrid Power Quality Enhancement Strategies: A Comprehensive Review
Energies, 2023 Renewable distributed generators (RDGs) have made inroads in recent power systems owing to the environmental effect of traditional generators and their high consumption of electric energy.
Hussain A. Alhaiz +2 more
doaj +1 more source
Energies, 2023 Several factors affect existing electric power systems and negatively impact power quality (PQ): the high penetration of renewable and distributed sources that are based on power converters with or without energy storage, non-linear and unbalanced loads,
Zakarya Oubrahim +3 more
doaj +1 more source
Proposal of novel single-phase power quality indicators considering subsynchronous frequency perturbations in voltage and current under non-sinusoidal conditions [PDF]
, 2019 This work pretends to reconsider power quality (PQ), in AC single-phase low voltage systems, considering perturbation sources with frequency components below the fundamental frequency in voltage and current signals. These perturbations induced by sources
Abdalinejad, S. +4 more
core +1 more source
Power Quality (PQ) Survey Reporting: Discrete Disturbance Limits
IEEE Transactions on Power Delivery, 2005 Discrete or event type power quality (PQ) disturbances mainly include voltage sags, swells, and the transients. An extensive literature survey suggests that there is no generally accepted method for characterization of these disturbances and suitable limits are not yet found in any international standard.
Herath, H. M. +2 more
openaire +3 more sources
PQ and Harmonic Assessment Issues on Low-Cost Smart Metering Platforms: A Case Study
Sensors, 2020 This paper presents a feasibility study on how to implement power quality (PQ) metrics in a low-cost smart metering platform. The study is aimed at verifying the possibility of implementing PQ monitoring in distribution networks without replacing ...
Giovanni Artale +9 more
doaj +1 more source
Voltage Sag Mitigation and Load Reactive Power Compensation by UPQC [PDF]
, 2014 This paper presents Unified Power Quality Conditioner(UPQC) that consist of series inverter and shunt inverter in back to back configuration which simultaneously compensate the power quality(PQ) problems of both voltage sag and load reactive power ...
Ajitha, P. (P), Jananisri, D. (D)
core +1 more source
Demand and Storage Management in a Prosumer Nanogrid Based on Energy Forecasting [PDF]
, 2020 Energy efficiency and consumers' role in the energy system are among the strategic research topics in power systems these days. Smart grids (SG) and, specifically, microgrids, are key tools for these purposes.
Florencias Oliveros, Olivia +6 more
core +1 more source
Investigation of effective automatic recognition systems of power-quality events [PDF]
, 2007 Copyright © 2007 IEEE. All Rights Reserved.There is a need to analyze power-quality (PQ) signals and to extract their distinctive features to take preventative actions in power systems. This paper offers an effective solution to automatically classify PQ
Ertugrul, N., Gargoom, A., Soong, W.
core +1 more source
Primary and secondary indices for power quality (PQ) survey reporting
2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951), 2005 Routine monitoring involves many PQ monitors at fixed sites with readings able to be interrogated remotely and downloaded to a central database. The amount of data for one year is large, and innovative methods are needed to ensure that it can give useful insights.
V.J. Gosbell +3 more
openaire +2 more sources
Sparse Linear Models applied to Power Quality Disturbance Classification
, 2015 Power quality (PQ) analysis describes the non-pure electric signals that are usually present in electric power systems. The automatic recognition of PQ disturbances can be seen as a pattern recognition problem, in which different types of waveform ...
López-Lopera, Andrés F. +2 more
core +1 more source