Toward Voltage-Quality Regulation in Italy

Delfanti, Maurizio; Fumagalli, Elena; Garrone, Paola; Grilli, Luca; Schiavo, Luca Lo

doi:10.1109/tpwrd.2009.2035918

Cited by 20 publications

(13 citation statements)

References 8 publications

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“…Unfortunately, no economic regulation of the voltage dips is still active [31]. However, some preliminary studies [32,33] offer valuable figures resulting from measurements, survey and simulations, which can guide in deriving the economic value to assign to the voltage dips.…”

Section: Cost Of Voltage Dipsmentioning

confidence: 99%

“…In this paper, we referred to [32] where the authors analyzed the economic and technical data collected for a number of medium-voltage (MV) industrial users that participated in the cost assessment project and the monitoring campaign. In particular, the authors used an indirect method based on a monitoring-and-survey approach to estimate the direct costs faced by a large variety of industrial customers.…”

Section: Cost Of Voltage Dipsmentioning

confidence: 99%

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Planning of Distributed Energy Storage Systems in μGrids Accounting for Voltage Dips

et al. 2020

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This paper deals with the optimal planning of the electrical energy storage systems in the microgrids aimed at cost minimization. The optimization accounts for the compensation of the voltage dips performed by the energy storage systems. A multi-step procedure, at the first step, identifies a set of candidate buses where the installation of a storage device produces the maximum benefit in terms of dip compensation; then, the life cycle costs in correspondence of different alternatives in terms of size and location of the storage systems are evaluated by considering an optimized use of the energy storage systems. The simulations on a medium voltage microgrid allowed validating the effectiveness of the proposed procedure.

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Section: Cost Of Voltage Dipsmentioning

confidence: 99%

Section: Cost Of Voltage Dipsmentioning

confidence: 99%

Planning of Distributed Energy Storage Systems in μGrids Accounting for Voltage Dips

et al. 2020

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“…For the distribution networks in Italy, immunity curves defined by Class 2 and Class 3 testing levels in IEC 61000‐4‐11/34 are used as reference curves by the Italian regulator to distinguish between “minor dips” and “major dips” where the latter are often the most problematic for the customers. From measurement campaigns, the EN50160 standard table is used to classify dips when estimating the numbers of voltage dips, process immunity, and related costs for customers.…”

Section: Responsibility‐sharing Practicesmentioning

confidence: 99%

“…The limit on the number of voltage dips per year for the MV customers is set based on the local circumstances, whereas for HV customers the objective is based on historical performance of the networks. 22,23 For the distribution networks in Italy, 16,17 immunity curves defined by Class 2 and Class 3 testing levels in IEC 61000-4-11/34 11,12 are used as reference curves by the Italian regulator to distinguish between "minor dips" and "major dips" where the latter are often the most problematic for the customers. From measurement campaigns, the EN50160 standard table is used to classify dips when estimating the numbers of voltage dips, process immunity, and related costs for customers.…”

mentioning

confidence: 99%

A proposal on voltage dip regulation for the Dutch MV distribution networks

Weldemariam

Ćuk

Cobben

2018

Int Trans Electr Energ Syst

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Summary Voltage quality regulation has been an ongoing discussion in many countries in the world to set up a regulatory framework where also voltage dips are included in the national grid codes. Regarding voltage dips, the regulatory framework is useful for establishing the coordination between the network operators, the equipment manufacturers, and the customers. The voltage dip regulation can provide benefits for the involved parties. By defining the responsibilities for the network operators and the customers, it can help distribution system operators to evaluate the quality of supply voltage and to take possible measures when the number of dips exceed the reference values defined in the regulation. The regulatory framework can also help customers to make an economic analysis for choosing appropriate mitigation methods to reduce the expected economic damages caused by voltage dips. This article presents two approaches for classifying different types of voltage dips into various clusters. Using datasets of voltage dips from the Dutch MV networks, the paper also describes the methodology for setting limits on the number of voltage dips for the regulatory purpose.

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“…In particular, one could object that, probably, most real industrial processes have an overall immunity better than the Class 2 (and even the Class 3) curve. To this regard, it is interesting to note the results of a monitoring period over 3 months that involved an ensemble of 16 MV industrial users [14], according to which: -all of the 35 transient interruptions recorded caused a PPH -41 out of 45 (91%) voltage dips below the Class 2 curve caused a PPH -44 out of 278 (16%) voltage dips over the Class 2 curve caused a PPH.…”

Section: Pq Statistical Data and Pph Calculationmentioning

confidence: 99%