Search results for "power system"

showing 10 items of 322 documents

Polluting loads detection in power systems: a decision-making strategy based on nonactive power measurements

2010

In this paper a novel decision-making strategy is proposed for the detection of polluting loads in three-phase power systems. It makes use of simple indices, which are expressed as a function of some nonactive power quantities, previously proposed by the authors and derived from the approach of the IEEE Std. 1459–2000. The decision-making rules for the proposed strategy are presented and discussed, by means of some simulation tests.

Total harmonic distortionEngineeringbusiness.industryControl engineeringFunction (mathematics)AC powerPower (physics)power measurement harmonic distortion power definitions IEEE Std. 1459-2000 harmonic sourcesHarmonic analysisElectric power systemPower system simulationbusinessSettore ING-INF/07 - Misure Elettriche E ElettronicheVoltage
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The Measurement of Reactive Energy in Polluted Distribution Power Systems: An Analysis of the Performance of Commercial Static Meters

2008

This paper presents a comparative analysis of the performances of both a traditional induction meter and various types of commercial static meters for reactive energy in the presence of harmonic distortion. This is a topical issue, since there are several types of static meters on the market, based on different principles of construction. In accordance with current standards, these meters are designed to operate in sinusoidal conditions and their performance is not tested in the presence of harmonic distortion. However, with the increase of pollution levels in power systems, the meters may be used even in the presence of distorted voltages and/or currents; in such cases, their accuracy may …

Total harmonic distortionEngineeringbusiness.industryElectrical engineeringEnergy Engineering and Power TechnologyAC powerAutomotive engineeringPower (physics)law.inventionElectric power systemlawElectrical networkEnergy measurements induction meters power systems harmonics reactive power static metersMetreElectrical and Electronic EngineeringbusinessSettore ING-INF/07 - Misure Elettriche E ElettronicheEnergy (signal processing)VoltageIEEE Transactions on Power Delivery
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A novel approach based on nonactive powers for the identification of disturbing loads in power systems

2007

In this paper, a new approach is proposed for the detection of harmonic sources in polluted power systems. It is a single- point strategy, based on a comparison among different "nonactive" power quantities proposed in literature that, in the same working conditions, assume different values at the same metering section. Some simulations tests were carried out on a standard IEEE test system proposed by other authors as a benchmark system for the analysis of multipoint measurement techniques for harmonic pollution monitoring. The obtained results show that the proposed single-point approach is in agreement with other strategies already proposed in the literature and can provide useful indicati…

Total harmonic distortionEngineeringbusiness.industryEnergy Engineering and Power TechnologyAC powerDetection of harmonic sources harmonic distortion power quality power system harmonics reactive powerPower (physics)Harmonic analysisElectric power systemPower system simulationHarmonicElectronic engineeringMetering modeElectrical and Electronic EngineeringbusinessSettore ING-INF/07 - Misure Elettriche E Elettroniche
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A Time-Domain Approach Based on the IEEE Std 1459-2000 for the detection of Loads Producing Harmonic Distortion

2008

This paper presents a novel strategy for the detection of harmonic sources in power systems for both the single-phase and the three-phase systems. It is based on the IEEE Std. 1459-2000 approach and it is based only on the separation of the fundamental components from the harmonic content of voltage and current. The proposed strategy do not require any spectral analysis of voltages and currents and it can be entirely implemented in the time domain. In the paper, the formulation of the novel approach is given and some simulation results are presented.

Total harmonic distortionEngineeringbusiness.industryPower system harmonicsElectrical engineeringAC powerElectric power systempower measurements harmonic distortion power definitions power qualityElectronic engineeringHarmonicSpectral analysisTime domainbusinessSettore ING-INF/07 - Misure Elettriche E ElettronicheVoltage2008 IEEE Instrumentation and Measurement Technology Conference
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Detection of disturbing loads in distorted and/or unbalanced power systems: a technique based on a comparison among nonactive powers

2007

This paper presents an innovative technique for the detection of disturbing loads in distorted power systems. It is a single-point strategy, based on a comparison among different "nonactive" power quantities already proposed in literature, that are measured at the same metering section. In the paper, the results obtained with the application of the proposed technique are compared with those of other techniques for the monitoring of the harmonic pollution, both single-point and multi-point. Moreover, the effectiveness of the strategy is discussed, considering also the errors of the measurement transducers.

Total harmonic distortionEngineeringbusiness.industryPower system harmonicsPower quality harmonic distortion reactive power power system harmonics detection of harmonic sources.AC powerPower (physics)Electric power systemTransducerHarmonic pollutionElectronic engineeringMetering modebusinessSettore ING-INF/07 - Misure Elettriche E Elettroniche
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Comparison of Nonactive Powers for the Detection of Dominant Harmonic Sources in Power Systems

2008

This paper deals with an innovative technique for the detection of disturbing loads in distorted power systems. The technique is a single-point strategy based on a comparison among different ldquononactiverdquo power quantities already proposed in the literature, which are measured at the same metering section. In this paper, the effectiveness of the strategy is discussed, which also considered the errors of the measurement transducers; the analysis is supported by simulation tests, which were carried out on both a simple single-phase system and an IEEE standard three-phase test power system. The latter was used by other authors as a benchmark system for the analysis of multipoint measureme…

Total harmonic distortionEngineeringbusiness.industrySystem testingAC powerDetection of harmonic sources harmonic distortion power quality power system harmonics reactive powerPower (physics)Electric power systemPower system simulationHarmonicElectronic engineeringMetering modeElectrical and Electronic EngineeringbusinessSettore ING-INF/07 - Misure Elettriche E ElettronicheInstrumentationIEEE Transactions on Instrumentation and Measurement
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An enhanced approach based on IEEE 1459 for the detection of disturbing loads in distorted and unbalanced three-phase power systems

2009

This paper presents an enhanced approach for the detection of disturbing loads in distorted and/or unbalanced three-phase power systems in both cases of three and four-wires. It is based on the IEEE Std. 1459-2000 effective apparent power resolution and it requires only the separation of the fundamental components of voltage and current from the remaining harmonic content. In the paper, the formulation of the novel approach is given and some simulation results are presented.

Total harmonic distortionEngineeringbusiness.industryharmonic distortion power definitions power quality harmonic sourcesAC powerHarmonic analysisElectric power systemPower system simulationThree-phaseElectronic engineeringHarmonicbusinessSettore ING-INF/07 - Misure Elettriche E ElettronicheVoltage
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Disturbing loads identification in power systems: a single-point time-domain method based on IEEE 1459-2000

2009

This paper presents a single-point method for the identification of prevailing disturbing loads in power systems for both single-phase and three-phase applications downstream or upstream from the metering section. It is based on the simultaneous measurement of three nonactive power quantities, which are based on the IEEE Std. 1459-2000 approach. The proposed method is only based on the separation of the fundamental components from the harmonic content of voltage and current; thus, it does not require any spectral analysis of the voltages and current. In this paper, the formulation of the proposed method and its time-domain implementation are described; moreover, some simulation results are …

Total harmonic distortionEngineeringbusiness.industrypower measurements harmonic distortion reactive power power systems power definitions power quality IEEE 1459AC powerPower (physics)Electric power systemHarmonicElectronic engineeringMetering modeUpstream (networking)Time domainElectrical and Electronic EngineeringbusinessInstrumentationSettore ING-INF/07 - Misure Elettriche E Elettroniche
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Wireless Power Transfer System Design for E-bikes Application

2019

The present work presents an analysis of Inductive Coupled Power Transfer (ICPT) Systems behaviour applied to electrical bikes. In particular, the study has focused on the design of the coupled coils of this system. In the first part of the work, the theoretical aspects of the wireless power system are handled. In the second part of the work, the inductive features of the coupled windings are analyzed. In order to perform this process, the Ansys Maxwell software has been used, performing 3D simulations. To conclude, the results of the simulations are compared.

WPT Systembusiness.industryComputer scienceInductive Coupled Power Transfer System020209 energyWireless Power Transfer System - WPT020208 electrical & electronic engineeringProcess (computing)02 engineering and technologyElectric power systemSoftwareElectromagnetic coil0202 electrical engineering electronic engineering information engineeringElectronic engineeringWirelessSystems designMaximum power transfer theoremWireless power transferbusinessICPT SystemE-Bike
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Performance analysis of photovoltaic powered dc motor — Propeller system

2015

The application of autonomous directly photovoltaic (PV) powered electro-mechanical has received increasing attention for different applications (e.g. PV water pumping, PV powered cooling of arid climate greenhouses, solar vehicles etc). The PV array output is a nonlinear and time-dependent power supply that varies with solar intensity and cell temperature, so the performance characteristics of the directly PV-powered DC motor — propeller system are very different than when powered by a constant DC voltage. The focus of this work is to do performance analysis of directly PV-powered DC motor — propeller system. Through performance evaluation, it has been observed that power transfer matching…

Water pumpingMaximum power principleComputer sciencePhotovoltaic systemPropellerAerodynamicsDC motorAutomotive engineeringMaximum power point trackingControl theoryGrid-connected photovoltaic power systemBrushed DC electric motorTorqueMaximum power transfer theorem2015 IEEE International Conference on Signal Processing, Informatics, Communication and Energy Systems (SPICES)
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