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A new THD measurement method with small computational burden using a SOGI-FLL grid monitoring system
(Institute of Electrical and Electronics Engineers (IEEE), 2020-06-01)
Article
Restricted access - publisher's policyThis article proposes a new method for obtaining the total harmonic distortion (THD) using few math operations, a low-pass filter (LPF), and a grid monitoring system able to provide the fundamental and harmonics components ... -
A power calculation algorithm for single-phase droop-operated-inverters considering linear and nonlinear loads HIL-assessed
(2019-11-01)
Article
Open AccessThe active and reactive powers, P and Q, are crucial variables in the parallel operation of single-phase inverters using the droop method, introducing proportional droops in the inverter output frequency and voltage amplitude ... -
Avoiding overvoltage problems in three-phase distributed-generation systems during unbalanced voltage sags
(2020-02-01)
Article
Open AccessDuring voltage sags, distributed generation systems must fulfil specific grid-code requirements for reactive current injection. This ancillary service can produce overvoltage problems in networks operating in unbalanced ... -
A novel electricity price forecasting approach based on dimension reduction strategy and rough artificial neural networks
(2020-04-01)
Article
Restricted access - publisher's policyAn accurate electricity price forecasting (EPF) plays a vital role in the deregulated energy markets and has a specific effect on optimal management of the power system. Considering all the potent factors in determining ... -
Regulatory-framework-embedded energy management system for microgrids: The case study of the Spanish self-consumption scheme
(2019-10-01)
Article
Restricted access - publisher's policyThis paper proposes for the first time to analyse the impact of embedding the regulatory framework constraints inside a model for the energy management optimization of a microgrid. As a case study, a low voltage microgrid ... -
Optimal voltage-support control for distributed generation inverters in RL grid-faulty networks
(Institute of Electrical and Electronics Engineers (IEEE), 2019-10-30)
Article
Open AccessDuring grid faults, the stability and reliability of the network are compromised, and the risk of a widespread disconnection of distributed generation power facilities is increased. Distributed generation inverters must ... -
Load shedding scheme with under-frequency and undervoltage corrective actions to supply high priority loads in islanded microgrids
(2019-08-19)
Article
Open AccessIn the last few years, microgrids have become a potential solution to improve reliability and security in the supply of electricity to power systems. When a microgrid changes its operation mode from grid-connected to ... -
Charging demand of Plug-in Electric Vehicles: Forecasting travel behavior based on a novel Rough Artificial Neural Network approach
(2019-08-20)
Article
Restricted access - publisher's policyThe market penetration of Plug-in Electric Vehicles (PEVs) is escalating due to their energy saving and environmental benefits. In order to address PEVs impact on the electric networks, the aggregators need to accurately ... -
Analysis of consensus-based islanded microgrids subject to unexpected electrical and communication partitions
(Institute of Electrical and Electronics Engineers (IEEE), 2018-01-01)
Article
Open AccessMicrogrids are power systems consisting of an electrical network composed by distributed loads and generation units that may include a communication network for improved operation. The considered microgrid in islanded mode ... -
Adaptive slope voltage control for distributed generation inverters with improved transient performance
(2019-04-09)
Article
Restricted access - publisher's policyReactive power injection in distributed generation inverters is an useful ancillary service for grid supporting purposes. For grid-feeding converters, the slope control method is the most common voltage regulation strategy ... -
PI-based controller for low-power distributed inverters to maximise reactive current injection while avoiding over voltage during voltage sags
(2018-10-25)
Article
Open AccessIn the recently deregulated power system scenario, the growing number of distributed generation sources should be considered as an opportunity to improve stability and power quality along the grid. To make progress in this ... -
Local frequency restoration for droop-controlled parallel inverters in islanded microgrids
(2018-01-01)
Article
Open AccessIn islanded microgrids, voltage source inverters working in parallel are expected to provide regulation of the local frequency while granting active power sharing. This paper presents a local control approach at each ...
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