Muhammad AdnanEngineering & designIdeas engineered. Solutions delivered.

Energy & Thermal

Engineering project

Vehicle-to-Grid (V2G) Bidirectional Charger

11kW bidirectional EV charger enabling V2G grid support, V2H, and V2L operation with ISO 15118-20 protocol.

V2GBidirectionalCCSGrid Support
Vehicle-to-Grid (V2G) Bidirectional Charger — engineering scope diagram Enlarge image
Project-specific scope and deliverables, illustrated from the engineering brief.
Vehicle-to-Grid (V2G) Bidirectional Charger — architecture diagram Enlarge image
Explanatory system architecture: inputs, engineering model and outputs.
Vehicle-to-Grid (V2G) Bidirectional Charger — workflow diagram Enlarge image
Explanatory workflow for the engineering analysis and validation process.

Select an image to inspect it. Use the arrow keys to browse the gallery.

Project brief

An 11kW bidirectional AC/DC charger enabling electric vehicles to feed energy back into the grid (V2G), home (V2H), or loads (V2L). The converter uses a bidirectional totem-pole PFC and dual active bridge (DAB) DC-DC converter with SiC MOSFETs, supporting ISO 15118-20 Vehicle-to-Grid protocol for automated grid services dispatch.

The source marks this charger project as ongoing. The architecture illustrates the proposed integration of converter control and energy-management communication.

The engineering challenge

Coordinate bidirectional power flow with vehicle, home-energy, and grid-service requests.

Engineering approach

  1. Define charge and discharge states around negotiated operating limits.
  2. Link the bidirectional converter stages to supervisory dispatch.
  3. Expose energy-management interfaces and grid-response status.

Features & capabilities

  • 11kW bidirectional operation: G2V charging and V2G/V2H/V2L discharge
  • Totem-pole PFC (bidirectional) + Dual Active Bridge DC-DC topology
  • SiC MOSFET implementation: 97.3% peak efficiency in both directions
  • ISO 15118-20 protocol for automated V2G dispatch commands
  • Frequency regulation service: automatic P(f) droop response in V2G mode
  • CCS Combo 2 IEC 62196-3 inlet with pilot/proximity detection
  • Home energy management integration: HEMS Modbus/REST API
  • Grid compliance: EN 50549-1, IEEE 1547, CEI 0-21 ride-through requirements

Software & engineering tools

SiC MOSFETs, STM32H7 + Linux companion, ISO 15118-20 stack (RISE-V2G), custom 8-layer PCB

More engineering to explore.

Back to all projects