Current harmonics generated by electric vehicle battery chargers

Berisha, Shahin H.; Karady, G.G.; Ahmad, Rafik; Hobbs, Ray; Karner, Donald

doi:10.1109/pedes.1996.539678

Cited by 21 publications

(9 citation statements)

References 2 publications

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“…Based on literature, it can be concluded that over time and with the development of power supply technologies, the amount of distortion from EV charging has decreased. Measurements in the 1990's showed that the use of uncontrolled or low-control rectifiers caused average current THD of 50% [19]. Measurements of modern commercial EVs have indicated an average charging current THD around 11%…12% [20] [21], but values as low as 4.5% [22] have also been indicated.…”

Section: Theoretical Backgroundmentioning

confidence: 99%

Power Quality Issues Concerning Photovoltaic Generation and Electrical Vehicle Loads in Distribution Grids

Niitsoo¹,

Taklaja²,

Palu³

et al. 2015

SGRE

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The high utilization level of renewable generation including residential photovoltaic (PV) systems together with the uncontrolled charging of electric vehicles (EVs) can have a significant impact on load characteristics in distribution networks. Harmonic content of PV generation, EV charging loads, and their influence on power quality indicators in residential distribution networks are discussed in this paper. For investigating likely power quality scenarios, PV generation and EV charging measurement results including current harmonic amplitude and phase angle values are used and compared with present load characteristics. Different modelling scenarios are analysed and a simplified model of harmonics in PVs and EVs is offered. The results of the study show moderate additional harmonic distortion in residential load current and voltage distortion at the substation's busbar when PV generation and EV loading are added. The scenarios presented in this paper can be further used for modelling the actual harmonic loads of the PVs and EVs in distribution networks.

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Section: Theoretical Backgroundmentioning

confidence: 99%

Power Quality Issues Concerning Photovoltaic Generation and Electrical Vehicle Loads in Distribution Grids

Niitsoo¹,

Taklaja²,

Palu³

et al. 2015

SGRE

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“…Based on the literature it can be concluded that over the years the amount of distortion from EV charging has decreased. The measurement in the 90's showed that the use of uncontrolled or low-control rectifiers causes average THD_i of 50% [7].…”

Section: Introductionmentioning

confidence: 99%

Harmonic levels of domestic and electrical vehicle loads in residential distribution networks

et al. 2013

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Purpose of the present paper is to provide the results of the study performed in order to assess current distortion of domestic and electrical vehicle (EV) loads and corresponding voltage distortion in the residential distribution networks. For the study harmonic current amplitudes and phase angles of different home appliances were measured and afterwards the corresponding models were composed in DIgSILENT Power Factory. The focus of the study was to analyse the characteristics of the residential distribution network with and without the EV charging. The results of the study showed an extensive harmonic distortion in residential load current and considerable voltage distortion at the substation's busbar. The results presented in this paper are especially important when dispersed generation (DG) and EVs are going to be connected in bulk into the distribution networks.

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“…In terms of energy and power density, ultra capacitors can therefore be placed between batteries and conventional capacitors [4][5]. An ultra-capacitor is an electrochemical component which mimics characteristics of very high value capacitors.…”

Section: Introductionmentioning

confidence: 99%

Development of a Current Control Ultracapacitor Charger Based on Digital Signal Processing

Samosir

2009

TELKOMNIKA

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Current harmonics generated by electric vehicle battery chargers

Abstract: This paper presents the results and analysis of data collected in the three groups of electrio vehicle battery chargers during three coiisecutive years: 1993, 1994, and 1995. The first group of battery chargers consisted of 27 chargers. The generated

Cited by 21 publications

References 2 publications

Power Quality Issues Concerning Photovoltaic Generation and Electrical Vehicle Loads in Distribution Grids

Power Quality Issues Concerning Photovoltaic Generation and Electrical Vehicle Loads in Distribution Grids

Harmonic levels of domestic and electrical vehicle loads in residential distribution networks

Development of a Current Control Ultracapacitor Charger Based on Digital Signal Processing

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