Large scale electric vehicle integration and its impact on the Estonian power system

Drovtar, Imre; Rosin, Argo; Landsberg, Mart; Kilter, Jako

doi:10.1109/ptc.2013.6652181

Cited by 17 publications

(8 citation statements)

References 2 publications

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“…Estonia power grid experienced a large scale of EVs integration that reached 30 % of the total number of cars [115]. The impact on the grid were insignificant for both controlled and uncontrolled charging approaches.…”

Section: A Load Profile Impactmentioning

confidence: 99%

Electric Vehicles Beyond Energy Storage and Modern Power Networks: Challenges and Applications

2019

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Electric vehicles (EVs) have been increasingly experiencing sales growth, and it is still not clear how to handle the associated impacts of a substantial integration of EVs against the power network performance and electricity deregulated market. Power networks development moves slowly compared to EVs, so it is hard to harmonize the two systems. Also, the associated cost required to modernize electric networks to accommodate the EVs additional loading is so huge that it makes it impractical. An electric network would suffer from many performances and quality-related problems if a significant number of EVs are not taken into account. Thus, it is vital to calculate at a reasonable accuracy the additional capacity to which the network would take. Also, the modeling of these EVs in terms of charge/discharge procedure (central or distributed) is essential to enable the optimization and compute potential impacts. The electricity market has to interface with the bidirectional supply nature of the EVs, so they become economically feasible. A business model that incorporates market structure and standards is selected in harmony with the charge/discharge model for best outcomes. Some approaches, algorithms, and schemes are deemed necessary to mitigate the effects of having EVs in the network. This paper presents a comprehensive review categorically on the recent advances and past research developments of EV paradigm over the last two decades. The main intent of this paper is to provide an application-focused survey, where every category and subcategory herein is thoroughly and independently investigated.INDEX TERMS Business model, central charging model, distributed charging model, electric vehicle, power network.

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Section: A Load Profile Impactmentioning

confidence: 99%

Electric Vehicles Beyond Energy Storage and Modern Power Networks: Challenges and Applications

2019

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“…Albeit, relatively few EVs have been sold in Europe so far, charging infrastructure developments are accelerated in the last years. The first country which has completed the deployment of a nationwide electric car charging network was Estonia [21]. Nevertheless, only half of the drivers are satisfied with this charging network [22].…”

Section: Literature Reviewmentioning

confidence: 99%

Demand Calculation Method for Electric Vehicle Charging Station Locating and Deployment

Csiszár

2019

Period. Polytech. Civil Eng.

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To develop, plan, implement and operate the electric road mobility system, especially the charging infrastructure, the existing and potential demand must be revealed for several time horizons. Accordingly, the aim of the research was to elaborate a calculation method for electric vehicle charging demand and to determine the public charging infrastructure locating principles. The research questions were: how many and what kind of vehicles will be used; where, when and how long they will be charged; what aspects and how influence the charging station deployment. The number of charging points to be installed, the energy demand and capacity management parameters can be also determined using the revealed correlations. The calculation method is adaptable to any territorial unit and any time horizon. It is the basis of charging station locating methods, which is demonstrated through two novel geoinformatics applications.

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“…On the other hand, global sensitivity analyses (GSA) [35][36][37][38][39][40][41][42][43][44][45], which avoids the aforementioned shortcomings, are only employed by a minority of designers. From the literature published on SA-focused studies for different HEV [46][47][48] and EV [50][51][52] powertrain topologies in both commercial [51][52][53] and passenger [54][55] vehicles, a remarkable lack of the availability of data can be seen. Due to the broad and multidisciplinary engineering involved in transportation electrification, the need of up-to-date application-oriented research and validation is obvious.…”

Section: Introductionmentioning

confidence: 99%

Overview of Sensitivity Analysis Methods Capabilities for Traction AC Machines in Electrified Vehicles

Asef

Lapthorn

2021

IEEE Access

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A robust design in electrified powertrains substantially helps to enhance the vehicle's overall efficiency. Robustness analyses come with complexity and computational costs at the vehicle level. The use of sensitivity analysis (SA) methods in the design phase has gained popularity in recent years to improve the performance of road vehicles while optimizing the resources, reducing the costs, and shortening the development time. Designers have started to utilize the SA methods to explore: i) how the component and vehicle level design options affect the main outputs i.e. energy efficiency and energy consumption; ii) observing sub-dependent parameters, which might be influenced by the variation of the targeted controllable (i.e. magnet thickness) and uncontrollable (i.e. magnet temperature) variables, in nonlinear dynamic systems; and iii) evaluating the interactions, of both dependent, and sub-dependent controllable/uncontrollable variables, under transient conditions. Hence the aim of this study is to succinctly review recent utilization of SA methods in the design of AC electric machines (EM)s used in vehicle powertrains, to evaluate and discuss the findings presented in recent research papers while summarizing the current state of knowledge. By systematically reviewing the literature on applied SAs in electrified powertrains, we offer a bibliometric analysis of the trends of application-oriented SA studies in the last and next decades. Finally, a numericalbased case study on a third-generation TOYOTA Prius EM will be given, to verify the SA-related findings of this paper, alongside future works recommendations.INDEX TERMS Automotive engineering, AC machines, electric vehicles, robustness, sensitivity analysis, permanent magnet machines, time series analysis, statistics.

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Large scale electric vehicle integration and its impact on the Estonian power system

Cited by 17 publications

References 2 publications

Electric Vehicles Beyond Energy Storage and Modern Power Networks: Challenges and Applications

Electric Vehicles Beyond Energy Storage and Modern Power Networks: Challenges and Applications

Demand Calculation Method for Electric Vehicle Charging Station Locating and Deployment

Overview of Sensitivity Analysis Methods Capabilities for Traction AC Machines in Electrified Vehicles

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