High-power EV and EVSE testing with an MCS expansion path

The architecture combined established charging interfaces with an expansion path for MCS (Megawatt Charging System). Communication, cooling and high-power equipment were planned together for EV and EVSE tests.

Charging interfaces and cables on a comemso high-power test rack
Two DUT rolesVehicle or charging-system side
CommunicationMCS-specific messages and timing
Physical contextSignals, temperature and cooling
ScopeConfigure power integration for the test task
Original comemso publication

This article records the system configuration at the time of publication. The linked current product page explains the configurations available today.

View original publication

The system was prepared for MCS (Megawatt Charging System), with EV testing and EVSE charging testing as its intended roles. EVSE means Electric Vehicle Supply Equipment, or charging station.

Charging interfaces in the test configuration

The system covered these charging interfaces and standards:

  • CCS (COMBO 1 & 2)
  • NACS
  • CHAdeMO
  • GB/T DC
  • AC

The announcement specified up to 1500 V and 600 A for cooled DC CCS tests, and up to 1000 A for the planned MCS configuration. These values describe the architecture presented at the time.

Space for the MCS communication core

The architecture provided space for the MCS communication core, which was still under development. Communication, cooling and the system layout were designed for high-power operation.

Cooling and cabling for high-power operation

Tests at megawatt power require cooling and cabling suited to the intended operating points. comemso worked with its supplier on these requirements in a dedicated coaching session for continuous MCS operation.

The work supported configuring test setups for EVSE laboratories, climate chambers and field applications, with cooling and cabling matched to the intended use.

Discuss the MCS interface, cooling and power equipment for your test task with comemso via the contact page.

Related reading

Related articles

Browse related articles and their publication dates, then follow the links to the current product or software page.

MCS test planning

Plan communication, interfaces and power equipment.

Define the DUT (device under test) role, MCS interface and thermal conditions for the test task. Select separately configured source/load equipment for the required operating points.