Efficiency of an AC Conductive In-Road Charging System for Electric Vehicles-Analysis of Pilot Project Data

Hellgren, Mikael; Honeth, Nicholas

doi:10.4271/14-09-01-0003

Cited by 5 publications

(3 citation statements)

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“…In this method, the conductor is not limited to being placed above or below the vehicle in the electrified road system. The Japanese manufacturer Honda proposes this different alternative, in which they place the transmitting power lines to the side of the road [55,59]. This allows both passenger and heavy-duty vehicles to take advantage of the infrastructure without changing lanes on the road.…”

Section: Roadside Conductivementioning

confidence: 99%

Analyzing the Societal Cost of Electric Roads Compared to Batteries and Oil for All Forms of Road Transport

2022

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This article is designed to demonstrate that electric roads are an affordable way to electrify all forms of road transport—not only cars, but also buses and trucks. Electric roads represent a way to power electric vehicles without relying solely on batteries. The idea is that when an electric vehicle reaches an electric road, it stops using power from the battery and instead uses power directly from the road itself. The primary challenge for electric vehicles is still the perception of a compromised quality of life in owning an electric vehicle due to a limited range compared with petrol and diesel cars, today. This paper introduces a new technology, currently experiencing rapid development, that can not only overcome range anxiety but make electric vehicles better, in terms of range, than petrol and diesel cars today. Furthermore, not only can this research help to arrange this, but it can also help, for the first time, to cost-effectively electrify heavy-duty transport, such as trucks and buses, which would be a huge breakthrough in terms of sustainability, as it is very important to start supplying electricity to heavy-duty vehicles. The case study provides a very hypothetical example of a trip with and without an electric road, covering a total of 26,011 km of highways and main roads. The results indicate that building electric roads is cheaper than many other alternatives. If a large battery is replaced with a smaller battery for each new vehicle sold, after 3 years, enough savings will be made to electrify all highways and main roads in Turkey. This paper can help transport operators and policymakers develop strategies to accelerate the adoption of electric vehicles by appropriately implementing electric road infrastructure.

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Section: Roadside Conductivementioning

confidence: 99%

Analyzing the Societal Cost of Electric Roads Compared to Batteries and Oil for All Forms of Road Transport

2022

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“…ERS solutions are installed near the roadway or directly on it. Several pilot programs of conductive ERS can be found [9]. The advantage of this solution is the ability to charge the vehicle while it is moving, which allows the use of a smaller battery.…”

Section: General Characteristics Of Home Ev Chargers and Public Ev Re...mentioning

confidence: 99%

Electric Vehicles—An Overview of Current Issues—Part 2—Infrastructure and Road Safety

Guzek,

Jackowski,

Jurecki

et al. 2024

Energies

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The electrification of road transport is developing dynamically around the world. Many automotive companies are introducing electric vehicles to the market, and their popularity is constantly growing. The increasing popularity of electric vehicles is caused by individual countries’ governments encouraging people to switch to electric vehicles and their lower operating costs. In 2022, the number of electric vehicles in China will exceed 10 million. Europe and the USA rank second and third in global electric car stock, respectively. The number of available electric vehicle models is constantly growing, remaining approximately 2.5 times smaller than the case of vehicles with an internal combustion engine. Among others, a significant limitation to the popularity of electric cars is users’ fear of range and the density of the charging infrastructure network. This paper presents the objectives regarding public areas and charging stations around the European Union’s comprehensive and core transport network. It is worth noting that the vehicle and charging point’s charging connectors vary depending on the geographical region. Therefore, the currently used charging connectors for different regions are presented. Charging time depends significantly on the charging current, the power of the charging point, and the devices installed in the vehicle. The paper analyzes the limitations of charging power resulting from the onboard charger’s power and the charging point’s power. It presents the charging time of selected electric vehicles. The second aspect that is also the subject of user concerns and discussed in this article is issues related to the safety of electric vehicles. General safety indicators of such vehicles based on Euro-NCAP tests are characterized. Attention was also paid to more detailed problems related to active and passive safety and functional safety analyses. The issue of the fire hazard of electric vehicles was discussed together with modern experiences regarding post-accident procedures in the event of fires.

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“…ERS is a relatively new concept, and therefore, there is limited amount of research performed on the topic. Historically in the scientific literature, a large focus has been on technology improvements of the ERS road infrastructure, such as the inductive charging system efficiency [8], alignment tolerance of the inductive power transfer transformer [9], and the efficiency of an AC-conductive ERS [10]. There have also been studies on life-cycle assessments of ERS, such as Marmiroli et al [11], Balieu et al [12], and Schulte et al [13].…”

Section: Introductionmentioning

confidence: 99%

Substation Placement for Electric Road Systems

et al. 2023

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One option to avoid range issues for electrified heavy vehicles, and the large individual batteries for each such vehicle, is to construct electric road systems (ERS), where vehicles are supplied with electricity while driving. In this article, a model has been developed that calculates the cost for supplying an ERS with electricity from a regional grid to a road in the form of cables and substations, considering the power demand profile for heavy transport. The modeling accounts for electric losses and voltage drop in cables and transformers. We have used the model to exhaustively compute and compared the cost of different combinations of substation sizes and locations along the road, using a European highway in West Sweden as a case study. Our results show that the costs for building an electricity distribution system for an ERS vary only to a minor extent with the location of substations (10% difference between the cheapest cost and the average cost of all configurations). Furthermore, we have varied the peak and average power demand profile for the investigated highway to investigate the impact of a specific demand profile on the results. The results from this variation show that the sum of the peak power demand is the most important factor in system cost. Specifically, a 30% change in the peak power demand for the road has a significant impact on the electricity supply system cost. A reduction in the geographical variation of power demand along the road has no significant impact on the electricity distribution system cost as long as the aggregated peak power demand for all road segments is held constant. The results of the work are relevant as input to future work on comparing the cost–benefit of ERS with other alternatives when reducing CO2 from road traffic—in particular from heavy road traffic.

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Efficiency of an AC Conductive In-Road Charging System for Electric Vehicles-Analysis of Pilot Project Data

Cited by 5 publications

References 0 publications

Analyzing the Societal Cost of Electric Roads Compared to Batteries and Oil for All Forms of Road Transport

Analyzing the Societal Cost of Electric Roads Compared to Batteries and Oil for All Forms of Road Transport

Electric Vehicles—An Overview of Current Issues—Part 2—Infrastructure and Road Safety

Substation Placement for Electric Road Systems

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