Increasing Electric Vehicle Penetration Using Smart Switching and Emergency Uprating
| Autor: | Hailian Xie, Qianliang Xiang, Shuran Liu, Meng Cheng, Yizhe Jiang, Qinhao Xing |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
smart switching
Economics and Econometrics business.product_category Computer science 020209 energy Energy Engineering and Power Technology 02 engineering and technology reliability evaluation General Works Automotive engineering Reliability (semiconductor) Peak demand Electric vehicle 0202 electrical engineering electronic engineering information engineering Network performance Duration (project management) electric vehicles Renewable Energy Sustainability and the Environment Grid Fuel Technology distribution networks Penetration (warfare) Key (cryptography) business emergency uprating |
| Zdroj: | Frontiers in Energy Research, Vol 9 (2021) |
| ISSN: | 2296-598X |
| DOI: | 10.3389/fenrg.2021.672721 |
| Popis: | One of the key challenges facing distribution network operators today is the expected increase in electric vehicles. The increased load from EV charging will result in distribution assets becoming “thermally overloaded” due to higher operating temperatures. In addition to the issue of increased load, we have a limited understanding of the behavior and performance of the distribution assets and their potential to accept the increased load. It has been well acknowledged that EVs increase the network loading level, leading to a reduced system reliability performance. These results have not been quantified in a realistic case study, including actual cable rating and design properties. To address this gap, this paper proposes a novel methodology in the existing power network reliability evaluation framework, which quantifies the impact of different EV penetration levels on distribution network reliability, and the thermal performance of distribution cables. Novel approaches using smart switching technology and emergency uprating are proposed to reduce the peak power demand caused by EVs, in order to reinforce the reliability of the grid and to boost the maximum allowable EV penetration in the distribution networks. The methodology was applied using a case study on the modified EV-integrated RBTS (Roy Billinton Test System) bus four distribution network. The results showed that the negative impact of EVs on network performance can be mitigated by the implementation of smart switching technology. The peak demand under contingencies can also be accepted by the cables though emergency uprating. The frequency and duration of EV demand interruption was also significantly reduced. Thus, a higher EV penetration can be accommodated. |
| Databáze: | OpenAIRE |
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