Development scheme and key technology of an electric vehicle: An overview

Kumar, M. Satyendra; Revankar, Shripad T.

doi:10.1016/j.rser.2016.12.027

Cited by 194 publications

(92 citation statements)

References 101 publications

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“…In the following and in order to further explore the applicability of the proposed VSIZVR-D2 topology in a real EV, its performance under realistic driving conditions will be carried out, focusing on power losses and efficiency. Notes: (1) The system enters slightly into overmodulation. The modulation index of 0.6 is less than 0.67.…”

Section: Analysis Of the Influence Of The Modulation Technique On Thementioning

confidence: 99%

“…In order to reduce pollution in urban areas, mitigate the consequences of climate change, and overcome current fuel scarcity, significant efforts are being carried out by the scientific community to contribute to the development of a more sustainable transportation [1][2][3]. In this context, the electric vehicle (EV) is considered as a key technology, where the battery pack, power converter, and electric machine are its most relevant elements [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

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Mitigation of Common Mode Voltage Issues in Electric Vehicle Drive Systems by Means of an Alternative AC-Decoupling Power Converter Topology

et al. 2019

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Electric vehicles (EV) are gaining popularity due to current environmental concerns. The electric drive, which is constituted by a power converter and an electric machine, is one of the main elements of the EV. Such machines suffer from common mode voltage (CMV) effects. The CMV introduces leakage currents through the bearings, leading to premature failures and reducing the propulsion system life cycles. As future EV power converters will rely on wide bandgap semiconductors with high switching frequency operation, CMV problems will become more prevalent, making the research on CMV mitigation strategies more relevant. A variety of CMV reduction methods can be found in the scientific literature, such as the inclusion of dedicated filters and the implementation of specific modulation techniques. However, alternative power converter topologies can also be introduced for CMV mitigation. The majority of such power converters for CMV mitigation are single-phase topologies intended for photovoltaic applications; thus, solutions in the form of three-phase topologies that could be applied to EVs are very limited. Considering all these, this paper proposes alternative three-phase topologies that could be exploited in EV applications. Their performance is compared with other existing proposals, providing a clear picture of the available alternatives, emphasizing their merits and drawbacks. From this comprehensive study, the benefits of a novel AC-decoupling topology is demonstrated. Moreover, an adequate modulation technique is also investigated in order to exploit the benefits of this topology while considering a trade-off between CMV mitigation, efficiency, and total harmonic distortion (THD). In order to extend the results of the study close to the real application, the performance of the proposed AC-decoupling topology is simulated using a complete and accurate EV model (including vehicle dynamics and a detailed propulsion system model) by means of state-of-the-art digital real-time simulation.Energies 2019, 12, 3349 2 of 27 the commutations of the power converter devices generate significant high-frequency CMV variations (Figure 1a). As a result, these voltage variations can produce not only high electromagnetic interferences (EMI) [6][7][8], but also shaft voltages (Figure 1b) in the electric machine [9][10][11], producing new capacitive paths [10]. These paths result in high-frequency leakage currents (Figure 1c) circulating through the motor bearings [12][13][14]. The most relevant capacitive paths are depicted in Figure 2, where the most significant bearing currents produced by CMV are the capacitive currents, electrostatic discharge currents, circulating currents, and rotor ground currents [9,13]. As bearings are critical components for the electric machine [10], a number of industrial companies are currently analyzing the degradation problems generated by such bearing currents [15][16][17].Regarding this issue, it is important to remark that although the majority of current industrial solutions rely on silicon-bas...

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Section: Analysis Of the Influence Of The Modulation Technique On Thementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mitigation of Common Mode Voltage Issues in Electric Vehicle Drive Systems by Means of an Alternative AC-Decoupling Power Converter Topology

et al. 2019

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“…However, due to the high production costs, low range, and the creation of the electric starter system for the internal combustion engines, ICE vehicles sealed their superiority in the market . Current concerns, though, such as environmental pollution and oil price volatility have encouraged the increase of EV as an alternative for the transport sector . Several advantages might be associated with EV usage, for instance, they are clean, efficient, and quiet transport alternatives .…”

Section: Introductionmentioning

confidence: 99%

“…2 Current concerns, though, such as environmental pollution and oil price volatility have encouraged the increase of EV as an alternative for the transport sector. 3 Several advantages might be associated with EV usage, for instance, they are clean, efficient, and quiet transport alternatives. 2 There are also disadvantages for this technology; among the drawbacks cited, there is the high costs for vehicle acquisition, low range, long charging times, and the limited infrastructure to charge the vehicle.…”

Section: Introductionmentioning

confidence: 99%

Electric Vehicles Charging Optimization to Improve the Insertion Considering the Brazilian Regulatory Framework

et al. 2019

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Electric vehicles (EV) charging can impact the electrical grid by causing voltage imbalance, power quality disturbances, and transformer overloading. Nonetheless, price signals at coordinated charging are capable of performing energy management and mitigating the negative effects of EV charging. This may, therefore, stimulate the EVs to charge during the period of lower energy consumption. In this context, this work aims to analyze the electric vehicle charging impact on distribution transformer loading, considering smart meter real data. For the analysis, this paper creates scenarios considering two seasons of the year (summer and winter seasons); the real time pricing and time of use electric charging tariffs; and the uncoordinated and coordinated vehicle charge control methods. The results of this study also support the elaboration of public policies proposals for the transport sector in order to encourage investment in the area of electric mobility.

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“…With the energy crisis and environmental pollution is becoming more serious, electric vehicles as the most direct response to energy conservation and environmental protection [1][2]. According to global consultancy estimates, in the next three years, China's new energy vehicles will maintain an annual growth rate of 35% to 40%.…”

Section: Introductionmentioning

confidence: 99%

Simulation Test Method for Battery Dynamic Performance of Double Battery Hybrid Electric Vehicles

Xu¹,

Fu²,

Yang³

et al. 2018

dteees

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Abstract. The dynamic performance, effective life and output reliability of electric vehicle battery have a direct impact on the dynamic performance of electric vehicle. Based on the force analysis of different conditions of electric vehicle load, this paper builds a battery performance test platform for double battery hybrid electric vehicle, which includes DC servo motor as battery-driven active traction motor, AC servo motor as load resistance motor to provide different conditions and PLC control system. The platform can adapt to different vehicle models, conditions and achieve traction power simulation, load conditions simulation in order to experimentally analyze the battery dynamic performance. At the same time, the simulation analysis of the same driving conditions by ADVISOR2002 verifies the consistency with the simulation test method, which shows that the simulation test method can effectively evaluate the battery performance of electric vehicles. This provides an effective way to improve the battery performance of electric vehicles.

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Development scheme and key technology of an electric vehicle: An overview

Cited by 194 publications

References 101 publications

Mitigation of Common Mode Voltage Issues in Electric Vehicle Drive Systems by Means of an Alternative AC-Decoupling Power Converter Topology

Mitigation of Common Mode Voltage Issues in Electric Vehicle Drive Systems by Means of an Alternative AC-Decoupling Power Converter Topology

Electric Vehicles Charging Optimization to Improve the Insertion Considering the Brazilian Regulatory Framework

Simulation Test Method for Battery Dynamic Performance of Double Battery Hybrid Electric Vehicles

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