Measurement-Based Current-Harmonics Modeling of Aggregated Electric-Vehicle Loads Using Power-Exponential Functions
This paper presents an aggregate current-harmonic load model using power exponential functions and built from actual measurement data during the individual charging of four different fully electric vehicles. The model is based on individual emitted current harmonics as a function of state of charge...
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Online Access: | https://www.mdpi.com/2032-6653/11/3/51 |
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doaj-f9940a8a71e74793ba657173dd8a274d2020-11-25T03:48:46ZengMDPI AGWorld Electric Vehicle Journal2032-66532020-07-0111515110.3390/wevj11030051Measurement-Based Current-Harmonics Modeling of Aggregated Electric-Vehicle Loads Using Power-Exponential FunctionsGeorgios Foskolos0Division of Business, Society and Engineering, Mälardalen University, P.O. Box 883, SE-721 23 Västerås, SwedenThis paper presents an aggregate current-harmonic load model using power exponential functions and built from actual measurement data during the individual charging of four different fully electric vehicles. The model is based on individual emitted current harmonics as a function of state of charge (SOC), and was used to deterministically simulate the simultaneous charging of six vehicles fed from the same bus. The aggregation of current harmonics up to the 11th was simulated in order to find the circumstances when maximal current-harmonic magnitude occurs, and the phase-angle location. The number of possible identical vehicles was set to four, while battery SOC, the start of charging, and the kind of vehicle were randomized. The results are presented in tables, graphs, and polar plots. Even though simulations did not consider the surrounding harmonics, supply-voltage variation, or network impedance, this paper presents an innovative modeling approach that gives valuable information on the individual current-harmonic contribution of aggregated electric-vehicle loads. With the future implementation of vehicle-to-grid technology, this way of modeling presents new opportunities to predict the harmonic outcome of multiple electric vehicles charging.https://www.mdpi.com/2032-6653/11/3/51aggregated loadscurrent-harmonic summationelectric vehiclesmodelingpower exponential functions |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Georgios Foskolos |
spellingShingle |
Georgios Foskolos Measurement-Based Current-Harmonics Modeling of Aggregated Electric-Vehicle Loads Using Power-Exponential Functions World Electric Vehicle Journal aggregated loads current-harmonic summation electric vehicles modeling power exponential functions |
author_facet |
Georgios Foskolos |
author_sort |
Georgios Foskolos |
title |
Measurement-Based Current-Harmonics Modeling of Aggregated Electric-Vehicle Loads Using Power-Exponential Functions |
title_short |
Measurement-Based Current-Harmonics Modeling of Aggregated Electric-Vehicle Loads Using Power-Exponential Functions |
title_full |
Measurement-Based Current-Harmonics Modeling of Aggregated Electric-Vehicle Loads Using Power-Exponential Functions |
title_fullStr |
Measurement-Based Current-Harmonics Modeling of Aggregated Electric-Vehicle Loads Using Power-Exponential Functions |
title_full_unstemmed |
Measurement-Based Current-Harmonics Modeling of Aggregated Electric-Vehicle Loads Using Power-Exponential Functions |
title_sort |
measurement-based current-harmonics modeling of aggregated electric-vehicle loads using power-exponential functions |
publisher |
MDPI AG |
series |
World Electric Vehicle Journal |
issn |
2032-6653 |
publishDate |
2020-07-01 |
description |
This paper presents an aggregate current-harmonic load model using power exponential functions and built from actual measurement data during the individual charging of four different fully electric vehicles. The model is based on individual emitted current harmonics as a function of state of charge (SOC), and was used to deterministically simulate the simultaneous charging of six vehicles fed from the same bus. The aggregation of current harmonics up to the 11th was simulated in order to find the circumstances when maximal current-harmonic magnitude occurs, and the phase-angle location. The number of possible identical vehicles was set to four, while battery SOC, the start of charging, and the kind of vehicle were randomized. The results are presented in tables, graphs, and polar plots. Even though simulations did not consider the surrounding harmonics, supply-voltage variation, or network impedance, this paper presents an innovative modeling approach that gives valuable information on the individual current-harmonic contribution of aggregated electric-vehicle loads. With the future implementation of vehicle-to-grid technology, this way of modeling presents new opportunities to predict the harmonic outcome of multiple electric vehicles charging. |
topic |
aggregated loads current-harmonic summation electric vehicles modeling power exponential functions |
url |
https://www.mdpi.com/2032-6653/11/3/51 |
work_keys_str_mv |
AT georgiosfoskolos measurementbasedcurrentharmonicsmodelingofaggregatedelectricvehicleloadsusingpowerexponentialfunctions |
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1724497286085476352 |