Search results for "Power system management"

showing 4 items of 4 documents

An Improved Load Flow Method for MV Networks Based on LV Load Measurements and Estimations

2019

A novel measurement approach for power-flow analysis in medium-voltage (MV) networks, based on load power measurements at low-voltage level in each secondary substation (SS) and only one voltage measurement at the MV level at primary substation busbars, was proposed by the authors in previous works. In this paper, the method is improved to cover the case of temporary unavailability of load power measurements in some SSs. In particular, a new load power estimation method based on artificial neural networks (ANNs) is proposed. The method uses historical data to train the ANNs and the real-time available measurements to obtain the load estimations. The load-flow algorithm is applied with the e…

Artificial neural networksBusbarComputer sciencepower system measurement020208 electrical & electronic engineeringArtificial neural networks (ANNs)power system managementpower measurementFlow method02 engineering and technologypower system measurementsload flow (LF)Power (physics)Control theoryload flowsmart grids0202 electrical engineering electronic engineering information engineeringstate estimationElectrical and Electronic Engineeringsmart gridInstrumentationSettore ING-INF/07 - Misure Elettriche E ElettronicheVoltage
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Joint Spectral and Energy Efficiency Optimization for Downlink NOMA Networks

2020

Non-orthogonal multiple access (NOMA) holds the promise to be a key enabler of 5G communication. However, the existing design of NOMA systems must be optimized to achieve maximum rate while using minimum transmit power. To do so, this paper provides a novel technique based on multi-objective optimization to efficiently allocate resources in the multi-user NOMA systems supporting downlink transmission. Specifically, our unique optimization technique jointly improves spectrum and energy efficiency while satisfying the constraints on users quality of services (QoS) requirements, transmit power budget and successive interference cancellation. We first formulate a joint problem for spectrum and …

OptimizationMathematical optimizationComputer Networks and CommunicationsComputer scienceenergiatehokkuus5G-tekniikka02 engineering and technologySilicon carbideMulti-objective optimizationNomalangaton tiedonsiirto0203 mechanical engineeringoptimointiPower system managementQuality of serviceArtificial IntelligenceTelecommunications link0202 electrical engineering electronic engineering information engineeringmedicineSpectral efficiencyDownlinkResource managementNOMA020302 automobile design & engineering020206 networking & telecommunicationsSpectral efficiencyTransmitter power outputmedicine.diseaseMulti-objective optimizationEnergy efficiencySingle antenna interference cancellationHardware and ArchitectureNon-orthogonal multiple accessBenchmark (computing)QoS.Efficient energy use
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Green Data Centres integration in smart grids: New frontiers for ancillary service provision

2017

Abstract The paper presents a study, conceived within the GEYSER FP7 co-funded European research project, on the ancillary services that Green Data Centres (GDCs) can provide, focusing, in particular, on spinning reserve. More in detail, the main contribution of the paper is to show how GDCs can be involved in the secondary frequency regulation process of a smart distribution grid, for contrasting the disturbing effects of unexpected variation of the energy production. With this aim, a real data centre, owned by Engineering S.p.A., is simulated as connected to the Medium Voltage IEEE 14-bus test grid where some RES-based generators are supposed to exist. Simulations are carried out in order…

Power managementEngineeringOperations researchbusiness.industryProcess (engineering)Event (computing)020209 energyEnergy Engineering and Power Technology020206 networking & telecommunications02 engineering and technologyGridRenewable energyAncillary servicesSettore ING-IND/33 - Sistemi Elettrici Per L'EnergiaSmart gridPower system managementPower system dynamics0202 electrical engineering electronic engineering information engineeringProduction (economics)Data centerGreen Data CentresElectrical and Electronic EngineeringSpinning reservebusinessTelecommunicationsElectric Power Systems Research
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Smart grid integrated green data centres as ancillary service providers

2015

In this paper a review of Green Data Centres facilities to support smart grids operation is proposed. The paper describes the ancillary services a Green Data Centre can provide both in terms of spinning reserve provision and different regulation services. In the application section, a real electrical grid hosting a data centre is considered. The infrastructure is owned by Engineering S.p.A. and is installed in northern Italy. The system has been considered as connected to the MV distribution grid in presence of other renewable energy sources. The impact of possible power management operations over the considered data centre has been studied by means of a simulation software and the spinning…

EngineeringWind powerbusiness.industryElectrical engineeringGridElectrical gridGrid paritySettore ING-IND/33 - Sistemi Elettrici Per L'EnergiaBase load power plantSmart gridDistributed generationIntermittent energy sourceData centre layoutPower system dynamicsPower system managementWind energy integrationbusinessTelecommunications2015 International Conference on Clean Electrical Power (ICCEP)
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