TACTICAL VEHICLE TO GRID AND VEHICLE TO VEHICLE
DEMONSTRATION
Authors: Hancock Janie , Kolhoff Steven W. , McGrew Dean Z. , Masrur M. Abul , Skowronska Annette G. , Vandiver James , Gatherer Jim , Palmer Jason , Wood Robert , Curtiss Peter , Dorflinger Max 
Published: November 2024

<title>ABSTRACT</title>
<p>The roll-up roll-away Tactical Vehicle-to-Grid / Vehicle-to-Vehicle (V2G/V2V)
system provides a plug-and-play, very fast forming, smart, aggregated, and
efficient power solution for an emerging (including austere) contingency base
that is ready to generate up to 240kW of 208 VAC 3-phase power in less than 20
minutes. The system is designed to provide grid services (peak shaving, Volt/VAR
control, power regulation, and current source mode) beneficial to emerging and
mature grids (CONUS or OCONUS). The system uses vehicle Transmission-Integrated
Generators (TIGs) to produce 600VDC power for use by vehicle hotel-loads
(electrification) and off-board loads (tents/shelters, communications centers,
or other electrical loads). Each vehicle is equipped with a Vehicle
Communication Module (VCM), which provided the communication capability prior to
initiation of transfer of up to 100kW of power via the J1772 SAE Combo Connector
between vehicles (V2V) and/or for export power off-vehicle (V2G). This effort
involves four tactical vehicles; two M1152 HMMWVs equipped with 30kW of On-Board
Vehicle Power (OBVP) and two MaxxPro Dash MRAPs equipped with a 120kW 3000
Transmission-Integrated Generators (3TIGs) with V2G and V2V capability, four
60kW DC-to-three-phase (3Ø) AC power converters with 600 VDC bus
distribution systems and four 22.8 kWh Energy Storage Systems (ESU). This
multi-vehicle based power system utilizes variable engine speeds for efficient
power generation. The demonstration project included the sub-system development,
communications systems development, system integration, testing, and
demonstration. The system supports host-grid connectivity to reduce deployed
fuel consumption for power generation by 20 percent. This can come through
operation of the engines at their optimum speed based on the engine map, along
with proper management of the generation and energy storage resources. In
addition, one or more generation sources can be completely turned off (i.e.
engine off condition) when possible depending on the load demand, thus resulting
in fuel economy improvement. The system capability was first demonstrated at
TARDEC and then with the Warfighter at Fort Devens, Sustainability Logistics
Basing (SLB) Science and Technology Objective Demonstration (STO/D), in FY16.
The paper includes test data and results collected during the; System Validation
Test at TARDEC, APG Safety Release, Demonstration at Fort Devens. In addition,
the paper includes test results of sub-system and some results from modeling and
simulation (M&amp;S) of the system. M&amp;S will involve relevant logic for
deciding which VCM module acquires the status of a Master Controller, and will
also include droop control of the generation sources and integration of the
energy storage sources (ESU), i.e. the batteries, so that proper grid voltage
level can be maintained within limited boundaries.</p>