> Innovation Projects > FAST DC (Framework for Advanced Studies of DC Grids)

FAST DC (Framework for Advanced Studies of DC Grids)

Overview

FAST DC is a Network Innovation Allowance (NIA) funded project that builds on the work done in the Network DC project. The project focuses on developing advanced, vendor-neutral modelling and assessment frameworks for DC circuit breakers (DCCBs) with advanced functionalities, supporting the transition towards resilient multi-terminal HVDC grids.

Why FAST DC

As HVDC systems evolve from point‑to‑point links to multi‑terminal DC grids, protection and post‑fault system behaviour become increasingly challenging. Existing studies often rely on simplified breaker representations and conservative assumptions. FAST DC addresses this gap by enabling realistic, system‑level assessment of advanced DCCB functions.

Objectives

Real-time simulation testing of advanced functionalities of an FPGA-based DCCB was carried out at the National HVDC Centre with the University of Edinburgh as a proof of concept within the Network DC project. Further development and expanded research into these functionalities will be undertaken as part of the FAST DC project
  • Develop a system-level assessment framework for advanced DCCB functionalities in multi-terminal DC grids.
  • Create detailed, generic EMT and real-time DCCB models suitable for offline and real-time studies.
  • Develop analytical methods for realistic DC fault-current specification.
  • Demonstrate and validate advanced DCCB behaviour using FPGA-based real-time simulation testing.

Partners

  • SSEN Transmission
  • The University of Edinburgh
  • The National HVDC Centre

Useful Links