Uncertainty evaluation in load flow analysis: real MV distribution networks case studies

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Abstract

This work investigates the measurement uncertainty impact on load flow analysis in medium voltage (MV) distribution networks. The considered algorithm is a simplified load flow algorithm (LFA), developed by authors, which is based on the load power measurements at each secondary substation and one voltage measurement at the slack bus (i.e. the voltage at the MV bus bars of the primary substation). In the viewpoint of a real implementation, to reduce monitoring system costs, the LFA makes use of low voltage (LV) load power measurements for all the substations except those of MV users, where MV transducers are usually already installed. The uncertainties on LFA input quantities (load powers and slack bus voltage) are calculated, considering actual values of loads powers and currents and the accuracy specifications of measurement instruments installed in distribution network. Starting from this, power flows uncertainties are obtained applying a Monte Carlo analysis. The analysis has been carried out for real case studies; i.e. the distribution networks of Favignana and Ustica Islands. The following results refer to the Favignana case.
Lingua originaleEnglish
Pagine295-296
Numero di pagine2
Stato di pubblicazionePublished - 2018

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Electric power distribution
Electric potential
Voltage measurement
Uncertainty
Transducers
Specifications
Monitoring
Costs

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title = "Uncertainty evaluation in load flow analysis: real MV distribution networks case studies",
abstract = "This work investigates the measurement uncertainty impact on load flow analysis in medium voltage (MV) distribution networks. The considered algorithm is a simplified load flow algorithm (LFA), developed by authors, which is based on the load power measurements at each secondary substation and one voltage measurement at the slack bus (i.e. the voltage at the MV bus bars of the primary substation). In the viewpoint of a real implementation, to reduce monitoring system costs, the LFA makes use of low voltage (LV) load power measurements for all the substations except those of MV users, where MV transducers are usually already installed. The uncertainties on LFA input quantities (load powers and slack bus voltage) are calculated, considering actual values of loads powers and currents and the accuracy specifications of measurement instruments installed in distribution network. Starting from this, power flows uncertainties are obtained applying a Monte Carlo analysis. The analysis has been carried out for real case studies; i.e. the distribution networks of Favignana and Ustica Islands. The following results refer to the Favignana case.",
author = "Valentina Cosentino and Antonio Cataliotti and Salvatore Guaiana and Nicola Panzavecchia and Salvatore Nuccio",
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T1 - Uncertainty evaluation in load flow analysis: real MV distribution networks case studies

AU - Cosentino, Valentina

AU - Cataliotti, Antonio

AU - Guaiana, Salvatore

AU - Panzavecchia, Nicola

AU - Nuccio, Salvatore

PY - 2018

Y1 - 2018

N2 - This work investigates the measurement uncertainty impact on load flow analysis in medium voltage (MV) distribution networks. The considered algorithm is a simplified load flow algorithm (LFA), developed by authors, which is based on the load power measurements at each secondary substation and one voltage measurement at the slack bus (i.e. the voltage at the MV bus bars of the primary substation). In the viewpoint of a real implementation, to reduce monitoring system costs, the LFA makes use of low voltage (LV) load power measurements for all the substations except those of MV users, where MV transducers are usually already installed. The uncertainties on LFA input quantities (load powers and slack bus voltage) are calculated, considering actual values of loads powers and currents and the accuracy specifications of measurement instruments installed in distribution network. Starting from this, power flows uncertainties are obtained applying a Monte Carlo analysis. The analysis has been carried out for real case studies; i.e. the distribution networks of Favignana and Ustica Islands. The following results refer to the Favignana case.

AB - This work investigates the measurement uncertainty impact on load flow analysis in medium voltage (MV) distribution networks. The considered algorithm is a simplified load flow algorithm (LFA), developed by authors, which is based on the load power measurements at each secondary substation and one voltage measurement at the slack bus (i.e. the voltage at the MV bus bars of the primary substation). In the viewpoint of a real implementation, to reduce monitoring system costs, the LFA makes use of low voltage (LV) load power measurements for all the substations except those of MV users, where MV transducers are usually already installed. The uncertainties on LFA input quantities (load powers and slack bus voltage) are calculated, considering actual values of loads powers and currents and the accuracy specifications of measurement instruments installed in distribution network. Starting from this, power flows uncertainties are obtained applying a Monte Carlo analysis. The analysis has been carried out for real case studies; i.e. the distribution networks of Favignana and Ustica Islands. The following results refer to the Favignana case.

UR - http://hdl.handle.net/10447/339965

M3 - Other

SP - 295

EP - 296

ER -