Comparing Devices for Concurrent Measurement of AC Current and DC Injection during Electric Vehicle Charging

World Electric Vehicle Journal

Willett Kempton¹  Olga Mironenko² 

[1] Department of Electrical and Computer Engineering and College of Earth, Ocean and Environment, University of Delaware, Newark, DE 19716, USA;Department of Electrical and Computer Engineering, University of Delaware, Newark, DE 19716, USA;

关键词: EV;    V2G;    EVSE;    DC injection;    fluxgate;    shunt;   

DOI  :  10.3390/wevj11030057

来源: DOAJ

【 摘 要 】

Widespread adoption of electric vehicles (EVs) requires additional safety countermeasures to prevent DC injection from EVs into the AC grid via Electric Vehicle Supply Equipment (EVSE). Moreover, for energy purchase, and even more so for vehicle-to-grid (V2G) services, the EVSE must conduct high precision bidirectional power and energy measurements. This paper introduces operating principles, structure, performance, and cost comparison of three current sensing technologies—current transformer, shunt and fluxgate—for metering and protection within an EVSE, concluding with recommendations among those sensors for the most beneficial applications concerning EV charging.

【 授权许可】

Unknown