Faster-Than-Real-Time Dynamic Simulation of AC/DC Grids on Reconfigurable Hardware

• Author(s) / Creator(s)

  • Shiqi Cao, Ning Lin, Venkata Dinavahi

• Dynamic simulation of integrated AC and DC grids
  is paramount to address real-time operation challenges in energy
  control centers, such as available transfer capacities, relieving grid
  congestion, and taking effective control actions for improving the
  integrated grid system stability and reliability. This paper proposes
  a faster-than-real-time (FTRT) dynamic simulation of integrated
  AC/DC grids on the reconfigurable parallel hardware architecture
  of the field programmable gate array (FPGA). A fine-grained
  relaxation algorithm (FGRA) is proposed for a more efficient
  solution of the nonlinear differential algebraic equations of the
  integrated system model, including the detailed nonlinearmodels of
  the synchronous generators in the AC system which can be solved
  in parallel without matrix on the FPGA. The system solution is
  massively parallelized and pipelined in hardware to realize the
  lowest latencies and minimum utilization of hardware resource.
  Two case studies are used to illustrate the efficacy of the proposed
  algorithm and demonstrated a closed-loop prediction scenario for
  improving grid stability. Computational acceleration of up to 134
  times faster than real-time are reported for the two case studies,
  and the accuracy of the dynamic interaction is validated using the
  off-line transient stability simulation tool TSAT of the DSATools
  package.

• Date created

  2020-01-01

• Subjects / Keywords

  • AC/DC grid, dynamic simulation, faster than real time, field-programmable gate array (FPGA), fine-grained relaxation, modular multi-level converter (MMC), parallel processing, predictive control, real-time systems, synchronous generator.

• Type of Item

  Article (Published)

• DOI

  https://doi.org/10.7939/r3-3tqj-5598

• License

  Attribution-NonCommercial-NoDerivatives 4.0 International