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Two-phase linear hybrid reluctance actuator with low detent force
(2020-10-03)
Article
Open AccessIn this paper, a novel two-phase linear hybrid reluctance actuator with the double-sided segmented stator, made of laminated U cores, and an interior mover with permanent magnets is proposed. The permanent magnets are ... -
Analytical dead-band compensation for ZCS modulation applied to hybrid Si-SiC dual active bridge
(Institute of Electrical and Electronics Engineers (IEEE), 2020-10-02)
Article
Open AccessThis paper proposes a triangular modulation with zero current switching (ZCS) for a hybrid Si-SiC isolated bidirectional DC-DC converter (IBDC). Three of the four legs in the IBDC operate at ZCS and use Si IGBTs, while the ... -
Simplified modelling of nonlinear electromethanogenesis stack for power-to-gas applications
(Elsevier, 2020-10-01)
Article
Restricted access - publisher's policyBioelectrochemical systems performing electromethanogenesis (EMG-BES) represent an emerging technology for Power-to-gas as well as wastewater treatment. Moreover, EMG-BES can be used as a high-capacity energy storage system ... -
Renewable energy auction prices: near subsidy-free?
(2020-07-01)
Article
Open AccessThe latest trend of low record bid prices in renewable energy auctions has raised concerns on the effective deployment of the winning projects. A survey of recent auction data from several countries, technologies and ... -
Transition to a greener power sector: Four different scopes on energy security
(Elsevier, 2020-06-01)
Article
Restricted access - publisher's policyEnergy transitions have placed the power system in the center of the energy agenda, since electricity constitutes a bridge between renewable resources and the decarbonization of the global economy. Therefore, due to ... -
Circular economy of post-consumer textile waste: classification through infrared spectroscopy
(2020-11-01)
Article
Restricted access - publisher's policyThe textile and fashion industry is amongst the most resource-intensive and polluting industries, thus impacting the natural environment. During the last decades, there has been an increase in the manufacturing of textiles. ... -
Sensor comparison for corona discharge detection under low pressure conditions
(2020-06-01)
Article
Open AccessLow pressure environments, situate insulation systems in a challenging position since partial discharges (PDs), corona and arc tracking are more likely to develop. Therefore, specific solutions are required to detect such ... -
Open-circuit fault diagnosis and maintenance in multi-pulse parallel and series TRU topologies
(Institute of Electrical and Electronics Engineers (IEEE), 2020-02-27)
Article
Open AccessTransformer Rectifier Units (TRUs) are a reliable way for DC generation in several electric applications. These units are formed by multiple three-phase uncontrolled bridge rectifiers connected according to two main ... -
Improved direct current control for grid connected multilevel inverters
(Institute of Electrical and Electronics Engineers (IEEE), 2020-08-25)
Article
Restricted access - publisher's policyThis paper presents a sensorless voltage detection method for direct current control in grid connected multilevel inverters. The direct current control is based on Scalar Hysteresis Controller (SHC). The SHC is a simplified ... -
New sogi-fll grid frequency monitoring with a finite state machine approach for better response in the face of voltage sag and swell faults
(2020-04-01)
Article
Open AccessThe SOGI-FLL (Second-Order Generalized Integrator–Frequency-Locked Loop) is a well-known and simple adaptive filter that allows for estimating the parameters of grid voltage with a small computational burden. However, the ... -
Principles of operation of grids of DC and AC subgrids interconnected by power converters
(Institute of Electrical and Electronics Engineers (IEEE), 2020-06-15)
Article
Restricted access - publisher's policyThe concept of segmented AC power systems interconnected by means of HVDC is becoming more and more significant for many cases worldwide. Such systems are already existing and will become more complex with the increasing ... -
Passivity-based analysis and performance enhancement of a vector controlled VSC connected to a weak AC Grid
(Institute of Electrical and Electronics Engineers (IEEE), 2020-03-23)
Article
Open AccessDespite attempts to increase the active power capability of vector-controlled voltage source converters (VSCs) connected to very weak grids, the interaction between the control dynamics and physical system is not completely ...
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