Harmonics in Industrial Grids as a Result of Charging Infrastructure in Employee Parking Lots

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Harmonics in Industrial Grids as a Result of Charging Infrastructure in Employee Parking Lots

Gartner, Julia / Xu, Zexuan / Wussow, Jonas / Engel, Bernd

By 2030, at least 15 million electric vehicles are to be registered in Germany and one million charging points installed. The automotive industry is promoting the development of the charging infrastructure in particular in order to make electromobility more attractive. For example, Volkswagen is increasingly installing charging points in employee parking lots. Most of these charging points are accessible to everyone and some are directly connected to the low-voltage level of the industrial grid, which also supplies the production facilities. Previous studies already show that charging electric vehicles generates harmonics. Industrial grids often contain harmonics due to electronic components in the production facilities. Additionally charging electric vehicles in the industrial grid can lead to further deterioration of the power quality. Therefore, three different electric vehicles are integrated into an industrial grid and simulations are performed. By means of different scenarios, the effects of the electric vehicles with regard to voltage harmonics on the industrial grid are analyzed.