Average-Value Model of Electric Vehicle Chargers

被引：24

作者：

Dubey, Anamika ^{[1
]}

Santoso, Surya ^{[1
]}

Cloud, Matthew P. ^{[2
]}

机构：

[1] Univ Texas Austin, Dept Elect & Comp Engn, Austin, TX 78712 USA

[2] United Illuminating Co, New Haven, CT 06510 USA

来源：

IEEE TRANSACTIONS ON SMART GRID | 2013年 / 4卷 / 03期

关键词：

Analytical models; electric vehicle; mathematical model; power quality;

D O I：

10.1109/TSG.2013.2258692

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Analysis of voltage regulation impacts on distribution circuits due to electric vehicle (EV) battery loads requires accurate representation of the charging system. An EV charger consists of power electronic switches with PWM control to achieve desired charging characteristics while minimizing harmonic injections to the secondary service entrance. A detailed device-level model is accurate but it requires a significant amount of time to run due to the high switching frequency of the converter. For this reason, a novel and generic model of EV battery chargers is proposed and developed for evaluating distribution voltage regulation issues. The proposed model is developed based on the average-value modeling (AVM) approach. It includes a rectifier circuit along with PWM control, boost converter and battery banks. Average dynamics of the switching circuit are obtained by averaging the effects of fast switching in the device that occur within a prototypical switching interval. The proposed AVM is validated against a switching model and the actual measurements taken at an EV charging facility and is found to be very accurate in approximating EV charger behavior.

引用

页码：1549 / 1557

页数：9

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