Research on an Electric Vehicle Owner-Friendly Charging Strategy Using Photovoltaic Generation at Office Sites in Major Chinese Cities

Su Su, Yong Hu, Tiantian Yang, Shidan Wang, Ziqi Liu, Xiangxiang Wei, Mingchao Xia, Yutaka Ota and Koji Yamashita
Additional contact information
Su Su: National Active Distribution Network Technology Research Center, Beijing Jiaotong University, Beijing 100044, China
Yong Hu: National Active Distribution Network Technology Research Center, Beijing Jiaotong University, Beijing 100044, China
Tiantian Yang: National Active Distribution Network Technology Research Center, Beijing Jiaotong University, Beijing 100044, China
Shidan Wang: Haidian Electric Power Supply Company of State Grid Beijing Electric Power Company, Beijing 100044, China
Ziqi Liu: Inner Mongolia Electric Power Research Institute, Hohhot 010020, Inner Mongolia, China
Xiangxiang Wei: Liuzhou Power Supply Bureau, Guangxi Power Grid Co., Ltd., Liuzhou 545000, Guangxi, China
Mingchao Xia: School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China
Yutaka Ota: Department of Electrical and Electronic Engineering, Faculty of Engineering, Tokyo City University, Tokyo 163-8001, Japan
Koji Yamashita: Department of Electrical and Computer Engineering, Michigan Technological University, Houghton, MI 49931, USA

Energies, 2018, vol. 11, issue 2, 1-19

Abstract: Electric vehicles (EV) and photovoltaic (PV) generation are widely recognized around the world. Most EV owners in the major Chinese cities are forced to charge their EV batteries at the workplace during the daytime due to the limited space near their homes, which will increase the peak load during the daytime. On the other hand, the PV output is most likely to have a peak at around noon, which means, PVs could have a potential capability to compensate the EV charging load. An EV owner-friendly charging strategy based on PV utilization which alleviates both the EV charging constraints and the negative impact of the EV charging load on the grid is proposed. The PV utilization for compensating the unconstrained EV charging load is maximized to derive the maximum number of EVs with unconstrained charging. If the actual number of EVs exceeds the maximum number, a portion of EVs have to be charged only from the grid. Then, the line loss is introduced as the optimization objective in which the charging states are regulated. The case study shows that the proposed strategy can successfully increase the number of EVs with unconstrained charging, and reduce the peak-to-peak of the load curve.

Keywords: electric vehicle; office sites; major Chinese cities; PV utilization; EV owner-friendly charging strategy (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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