Study on residential electric vehicle charging
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Study on Residential Electric Vehicle Charging. SWEDE Conference 2012 Ron Shipman. Introduction. Impact of EV chargers on our system? Problems? Severity? Required Actions?. Selection of Study Sites. Study Parameters. Modeled Distribution System Coincident Peak AMS Data

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Study on Residential Electric Vehicle Charging

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Study on residential electric vehicle charging

Study on Residential Electric Vehicle Charging

SWEDE Conference 2012

Ron Shipman


Introduction

Introduction

  • Impact of EV chargers on our system?

  • Problems?

  • Severity?

  • Required Actions?


Selection of study sites

Selection of Study Sites


Study parameters

Study Parameters

  • Modeled Distribution System

  • Coincident Peak AMS Data

  • Simulated Chargers

    • Level 2 Charging

    • Penetration Levels

    • Multiple Scenarios


Cyme subdivision modeling

CYME Subdivision Modeling


Cyme subdivision modeling cont d

CYME Subdivision Modeling (cont’d)

  • Maximum local transformer impedance

  • Minimum service size

  • Modeled Triplex


Ams generated 24 hour load profile

AMS Generated 24-Hour Load Profile


Results

Results

  • Fuse Loading

  • Primary Cable Loading

  • Transformer Loading

  • Secondary Cable Loading

  • Service Cable Loading

  • Voltage Drop

  • Localized Issues


Locations ev and evgo requested

Locations EV and EVGO Requested

  • 2011 – 157 Locations

  • 2012 - 25 Locations to Date

  • Addressed (2) Transformers

  • Addressed (1) Secondary Cable

  • Installed 19 EVGO Locations


Questions

Questions?


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