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Publications - ISI Article

Modeling Stray Capacitances of High-Voltage Capacitive Dividers for Conventional Measurement Setups

Related tags

#Electricity Network #Legislation #Monitoring and Control

Publications - ISI Article

Modeling Stray Capacitances of High-Voltage Capacitive Dividers for Conventional Measurement Setups

The article presents a simplified method for evaluating the effect of parasitic capacitances in a conventional measurement setup described by the IEC 61869-11 standard.

Parasitic Capacitances (PCs) are a serious problem in High Voltage (HV) applications. Their presence can alter the circuit configuration or operation of a device, with erroneous or even disastrous consequences. To this end, this work describes the modeling of PCs in HV capacitive dividers. This modeling is not based on finite element analyses or complicated geometries; instead it starts from an equivalent circuit of a conventional measurement setup described by the IEC 61869-11 standard. Once the equivalent model including the PCs has been found, the closed-form expressions of the PCs are derived from the definition of the ratio error. Subsequently, they are validated in a simulation environment, implementing various circuit configurations. The results demonstrate the applicability and effectiveness of the expressions: thanks to their simplicity, they can be implemented by system operators, researchers and manufacturers, avoiding the use of complicated methods and technologies.

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Rif.RSE​

21002504

Destination​

MDPI Energies 2021, 14(5), 1262, February 25, 2021

Publication Date

25 February 2021

Authors​

A. Mingotti, F. Costa, L. Peretto, R. Tinarelli (Università di Bologna), P. Mazza (RSE S.p.A)

Publication Type

ISI Article

Projects

Architecture and management models of the electrical system and grids (EvolveNet)

Target​

Press & Media

Related tags

#Electricity Network #Legislation #Monitoring and Control

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