EconPapers    
Economics at your fingertips  
 

Assessment of the Overall Efficiency in WPT Stations for Electric Vehicles

Mauro Zucca, Vincenzo Cirimele, Jorge Bruna, Davide Signorino, Erika Laporta, Jacopo Colussi, Miguel Angel Alonso Tejedor, Federico Fissore and Umberto Pogliano
Additional contact information
Mauro Zucca: Istituto Nazionale di Ricerca Metrologica (INRiM), 10135 Torino, Italy
Vincenzo Cirimele: Dipartimento Energia, Politecnico di Torino, 10129 Torino, Italy
Jorge Bruna: CIRCE Foundation, 50018 Zaragoza, Spain
Davide Signorino: Istituto Nazionale di Ricerca Metrologica (INRiM), 10135 Torino, Italy
Erika Laporta: CIRCE Foundation, 50018 Zaragoza, Spain
Jacopo Colussi: Dipartimento Energia, Politecnico di Torino, 10129 Torino, Italy
Miguel Angel Alonso Tejedor: CIRCE Foundation, 50018 Zaragoza, Spain
Federico Fissore: Istituto Nazionale di Ricerca Metrologica (INRiM), 10135 Torino, Italy
Umberto Pogliano: Istituto Nazionale di Ricerca Metrologica (INRiM), 10135 Torino, Italy

Sustainability, 2021, vol. 13, issue 5, 1-19

Abstract: The on-site assessment of the efficiency of a charging station is not a trivial process and is a topic of discussion for professionals. The efficiency of electric Vehicle Supply Equipment (EVSE), is an important parameter for both the user and the EVSE operator. This paper deals with a particular type of EVSE, using static wireless power transfer (WPT). This paper proposes a clear method to account for the parameters which can affect the correct determination of efficiency, such as in particular the accuracy of the meters and the effect of temperature. This work proposes a method to define the accuracy of the power and efficiency on-site assessment, and is aimed at clarifying that despite distorted waveforms at the charging stations, it is possible to reach a good accuracy in a wide temperature span (expanded uncertainty <0.5% between 5 °C and 40 °C). Analysis initiated from the measurement conditions and the actual waveforms recorded at two WPT EVSEs with differently rated power. This paper paves the way for the possibility of verifying class 0.5 m on-site, desirable for this type of application. The paper also clarifies that despite the evident presence of voltage and current ripple at the batteries, the weight of the ripple power on the total power is nevertheless lower than 0.1%. Finally, the paper highlights how, for the correct measurement of the ripple, it would be advisable to calibrate the instrumentation in DC and in AC, at a frequency double that of the working frequency of the EVSE coils.

Keywords: electric vehicles; inductive charging; measurement uncertainty; power system measurements (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/2071-1050/13/5/2436/pdf (application/pdf)
https://www.mdpi.com/2071-1050/13/5/2436/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:13:y:2021:i:5:p:2436-:d:504849

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().

 
Page updated 2025-03-19
Handle: RePEc:gam:jsusta:v:13:y:2021:i:5:p:2436-:d:504849