Reference Example: HIL Simulation of Modular Multilevel Converters (MMC) for High-Voltage DC Transmission

Validate MMC-HVDC control and protection algorithms using a digital twin

Learn How to

Model modular multilevel converters (MMC) with detailed capacitor dynamics for high-voltage direct current (HVDC) applications.
Develop hierarchical pole control and protection (PCP) and valve base controller (VBC) architectures.
Deploy a 192-submodule MMC plant model for real-time execution.
Run plant and control models across CPUs and FPGAs.
Enable high-speed VBC–plant communication via AMD^® Aurora 64B/66B.
Validate PCP and VBC operation in real-time HIL testing.
Streamline development from design to automated HIL validation.

Interactively adjust load conditions and DC link voltage in offline and real-time simulation

MMC topology for HVDC transmission modeled with Simscape™ Electrical™

PCP regulates DC voltage, balances capacitor voltages, and ensures overcurrent protection

Execute automated test suites with reporting on results, pass/fail status, and coverage

Test System Configuration