AeroVironment Integrates Pacific Northwest National Laboratory Technology into Electric Vehicle Charging Systems to Improve Electrical Grid Stability

AeroVironment integrates Pacific Northwest National Laboratory technology into its EVSE-RS to enable grid-friendly PEV charging (Photo: Business Wire)

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AeroVironment integrates Pacific Northwest National Laboratory technology into its EVSE-RS to enable grid-friendly PEV charging (Photo: Business Wire)

This graphic illustrates how electric vehicle charging rate is controlled based on grid frequency. The graph on the upper right shows the grid frequency as measured directly by the AeroVironment prototype charging system. The graph on the bottom right shows the resulting charging current command sent to the vehicle (red line) and the actual vehicle charge current (green line). The vehicle employed for this test was a BMW Active E. The graph on the left shows how the overall charging power varies with grid frequency. (Graphic: Business Wire)