Voltage droop charging of electric vehicles in a residential distribution feeder

Geth, Frederik; Leemput, Niels; Roy, Juan Van; Büscher, J.; Ponnette, R.; Driesen, Johan

doi:10.1109/isgteurope.2012.6465692

Cited by 42 publications

(42 citation statements)

References 20 publications

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“…Results obtained by the researches show that RPC method improves voltages profile while energy losses do not vary significantly. Frederik Geth et al [13] have proposed an unidirectional (no V2G) droop method in order to limit under-voltage problems that can arise in LV distribution networks.…”

Section: Droop Based Controlmentioning

confidence: 99%

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Decentralized controltechniques for plug-in electric vehicles in MV/LV distribution networks

García-Villalobos¹,

Zamora²,

Junquera³

et al. 2016

REPQJ

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Abstract. Decentralized control techniques are acquiring more and more importance to efficiently manage a large number of distributed energy resources (DER). It is expected that, in the future, plug-in electric vehicles (PEVs) will act as DERs providing valued services to power grids. In addition, it has been proven that uncontrolled charging of PEVs will have a significant impact on the operation of MV/LV distribution networks. In this context, this paper presents a review on decentralized control approaches to adequately integrate PEVs in MV/LV distribution networks. Among these decentralized control techniques, optimal and droop based controls are the most common. Both have strengths and weaknesses, so, more research about mixing both methods is needed.

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Section: Droop Based Controlmentioning

confidence: 99%

“…A similar grid than in [13] is also used in [14]. In this case, authors add a coordinated charging to the droop control.…”

Section: Droop Based Controlmentioning

confidence: 99%

Decentralized controltechniques for plug-in electric vehicles in MV/LV distribution networks

García-Villalobos¹,

Zamora²,

Junquera³

et al. 2016

REPQJ

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“…In addition, power quality (i.e., voltage profile, unbalanced voltage, and harmonics) is essential to the distribution grid operator as well as to grid customers. Voltage deviations and harmonics are a definite power quality concern [16]. They are reported to cause equipment damage and deterioration of efficiency [5,6].…”

Section: Introductionmentioning

confidence: 99%

Impact of Plug-in Electric Vehicle battery charging on a distribution system

Bunga

2014

2014 IEEE Industry Application Society Annual Meeting

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Plug-in Electric Vehicles (PEV) battery chargers are mostly connected to the low-voltage grid for charging. Their increased penetration coupled with uncoordinated charging could impact the distribution system in terms of unbalanced voltage and transformer overloading. Although PEV battery charging is increasing, impact on the distribution system is not fully investigated. This paper focuses on unbalanced voltage caused by uneven distribution of PEV penetration among the phases. Using real data provided by utility, a distribution system has been modeled and tested using Matlab-Simulink. PEV penetration levels at 10-80% are studied, unbalanced voltage is calculated, and transformer overloading is observed. As PEV adoption is expected to increase, the impact on the distribution system will increase. Coordinated or smart charging of PEVs will be essential for consumers and utilities.Index Terms--Plug-in electric vehicle, battery charging, unbalanced voltage, and transformer overloading.

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“…The results showed the effectiveness of this structure in preventing voltage and frequency violations. A voltage-feedback control structure for EVs in a distribution system was shown in [17]. However, the issue of fairness among EVs connected to different nodes in the system was not addressed in [16], [17].…”

Section: Introductionmentioning

confidence: 99%

A Voltage-Based Controller for an Electric-Vehicle Charger

Al‐Awami

Sortomme

Akhtar

et al. 2016

IEEE Trans. Veh. Technol.

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Electric vehicle (EV) integration into the distribution system has been a topic of great interest lately due to the potential challenges it poses. Previous works have focused on either centralized charge control or distributed charge control to solve these issues. In this paper, an adaptive voltage feedback controller for an onboard EV charger is proposed that, unlike other proposed methods, does not require any real-time communication between the EV and the utility. This controller compares the system voltage at the point of charging with a preset reference voltage. The EV charging is reduced as the system voltage approaches this reference. The reduced charging rate takes into account the EV battery state of charge (SOC) and the owner's end-of-charge time (ECT) preference. To validate the proposed control structure, extensive simulations are carried out on a distribution system with and without other voltage control mechanisms. The simulation results show that this method can eliminate system voltage violations that would otherwise be caused by EV charging while ensuring fairness among the various EVs even with different system configurations and EV penetration levels. The proposed controller shows a good performance in the presence of other voltage control devices and distributed generation units. Also, it can integrate with Vehicleto-Grid services as a lowest level of hierarchical control.

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Voltage droop charging of electric vehicles in a residential distribution feeder

Cited by 42 publications

References 20 publications

Decentralized controltechniques for plug-in electric vehicles in MV/LV distribution networks

Decentralized controltechniques for plug-in electric vehicles in MV/LV distribution networks

Impact of Plug-in Electric Vehicle battery charging on a distribution system

A Voltage-Based Controller for an Electric-Vehicle Charger

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