Determining Time-of-Use Schedules for Electric Vehicle Loads: A Practical Perspective

被引：44

作者：

University of Texas at Austin, Austin ^{[1
]}

78712, United States

不详 ^{[2
]}

06510, United States

机构：

[1] University of Texas at Austin, Austin, 78712, TX

[2] United Illuminating Company, New Haven, 06510, CT

来源：

IEEE Power Energy Technol. Syst. J. | / 12-20期

关键词：

Distribution system; electric vehicle (EV); electricity market; time-of-use (TOU) pricing;

D O I：

10.1109/JPETS.2015.2405069

中图分类号：

学科分类号：

摘要：

Analyses have shown that electric vehicle (EV) loads may considerably affect the secondary service voltage quality. One of the ways to mitigate voltage drop concerns is to use a time-of-use (TOU) pricing scheme. A TOU pricing scheme utilizes the off-peak generation for EV charging, thus deferring any immediate grid upgrade and improving the grid sustainability. This paper evaluates various aspects of EV charging under a TOU schedule, with off-peak rates starting at hours ranging from 8 P.M. to 3 A.M. The study is conducted using an actual residential distribution circuit. A best practical time to begin the off-peak rates is determined so that the effects of EV charging on the secondary service voltages are minimized while ensuring that EVs are fully charged by 7 A.M., thus maximizing both grid and customer benefits. The analysis suggests that the best time to begin off-peak rates is between 11 P.M. and 12 A.M. Furthermore, the analysis also suggests that setting up TOU off-peak rates at the latter half of the peak load demand, for example, at 8 P.M., is detrimental to the distribution circuit voltage quality. The result indicates that the existing utility TOU scheme may exacerbate voltage drop problems due to EV load charging. © 2015 IEEE.

引用

页码：12 / 20

页数：8

共 23 条

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