Set up and characterization of a measuring system for PQ measurements in a MV site with PV generation

Crotti, G.; Giordano, D.

doi:10.21014/acta_imeko.v4i1.171

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…To this purpose, three new buses are added with respect to the original distribution feeder, each of them hosting a singlephase photovoltaic unit (PV) with a rated power of 3.5 kW [29], [30]. In order to introduce a plausible level of harmonic content generated by the PV, we recreate three different irradiance cycles having low levels of irradiance which have been proved to introduce a non-negligible level of harmonics and interharmonics [31].…”

Section: Ieee 13-bus System With Pv Integrationmentioning

confidence: 99%

Phasor measurement unit based based reliability index for renewable-based power systems

Frigo,

Costa,

Grasso-Toro

2023

Acta IMEKO

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The fast growing of renewable energy sources is threatening the correct functioning of power systems, both at the transmission and distribution levels where the presence of converter-interfaced generation (CIG) is rapidly increasing. Phasor Measurement Units (PMUs) are widely known devices that can enhance power systems observability; however, their in-field performances are still compromised for what concerns low-inertia and fast transient conditions produced by contingencies. This paper presents a new metric that is able to quantify the discrepancy between the acquired signal and the reconstruction based on the PMU estimates. More specifically, the correspondence between this metric and one of the PMU settings, namely the reporting rate, is examined. This study is carried out in four different scenarios all characterized by a strong presence of distributed CIG, installed at either distribution or transmission levels. The results indicate the significance of evaluating not only such quantity for correct control but also the importance of the choice of the PMU settings in order to maintain proper control.

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Section: Ieee 13-bus System With Pv Integrationmentioning

confidence: 99%

Phasor measurement unit based based reliability index for renewable-based power systems

Frigo,

Costa,

Grasso-Toro

2023

Acta IMEKO

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“…that is the values are the k-th sampled values of instantaneous power. So that the total energy can be calculated by (5) The value obtained, applying the ( 4) and ( 5) to all the samples of voltage and current acquired during a whole journey, is the net balance of energy required for the journey.…”

Section: Power and Energy Computationmentioning

confidence: 99%

Monitoring Energy and Power Quality On Board Train

Crotti

Giordano

Signorino

et al. 2019

2019 IEEE 10th International Workshop on Applied Measurements for Power Systems (AMPS)

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The European community for over a decade is supporting scientific and technological studies in order to make public transport low environmental impact. The metrological community plays a fundamental role in fostering this improvement. To this purpose, the paper describes the measurement setup and the results of an on-board DC train measurement campaign devoted to the accurate estimate of the energy exchanged between the locomotive and the DC feeder and the electrical energy wasted during the braking stage. These information are fundamental in the accurate determination of the energy saving margin, therefore, in the decision-making related to the infrastructure investment devoted to the energy efficiency improvement such as installation of reversible substation or on-board storage systems. Moreover, the paper provides a scientific contribution in the power quality definition for DC 3 kV railway systems.

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Compensation of Nonlinearity of Voltage and Current Instrument Transformers

Cataliotti

Cosentino

Crotti

et al. 2019

IEEE Trans. Instrum. Meas.

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This paper aims at characterizing and improving the metrological performances of Current (CT) and Voltage Instrument Transformers (VT) in harmonic measurements in power system. A theoretical analysis is carried out to demonstrate that, due to the iron core non linearity, CT and VT output signal is distorted even when the input signal is a pure sinusoidal. Starting from this analysis, a new method for CT and VT characterization and compensation is proposed. In a first step, they are characterized in sinusoidal conditions and the harmonic phasors of the distorted output are measured; in the second step, these phasors are used to compensate the harmonic phasors measured in normal operating conditions, which are typically distorted. The proposed characterization and compensation techniques are called SINDICOMP (SINusoidal characterization for DIstortion COMPensation). Several experimental tests, using high accuracy calibration setups, have been performed to verify the proposed methods. The experimental results showed that the SINDICOMP technique assures a significant improvement of CT and VT metrological performances in harmonic measurements.

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Set up and characterization of a measuring system for PQ measurements in a MV site with PV generation

Abstract: Citation: Gabriella Crotti, Domenico Giordano, Set up and characterization of a measuring system for PQ measurements in a MV site with PV generation, Acta IMEKO, vol. 4, no. 1, article 15, February 2015, identifier: IMEKO-ACTA-04 (2015

Cited by 3 publications

References 13 publications

Phasor measurement unit based based reliability index for renewable-based power systems

Phasor measurement unit based based reliability index for renewable-based power systems

Monitoring Energy and Power Quality On Board Train

Compensation of Nonlinearity of Voltage and Current Instrument Transformers

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