Faster-Than-Real-Time Hardware Emulation of Transients and Dynamics of a Grid of Microgrids

• Author(s) / Creator(s)

  • Shiqi Cao, Ning Lin, Venkata Dinavahi

• Enhanced environmental standards are leading to
  an increasing proportion of microgrids (MGs) being integrated
  with renewable energy resources in modern power systems, which
  brings new challenges to simulate such a complex system. In
  this work, comprehensive modeling of a grid of microgrids for
  faster-than-real-time (FTRT) emulation is proposed, which can be
  utilized in the energy control center for contingencies analysis and
  dynamic security assessment. Electromagnetic transient (EMT)
  modeling is applied to the microgrid in order to reflect the
  detailed device processes of the converter and renewable energy
  sources, while the AC grid utilizes the transient stability modeling
  to reduce the computational burden and obtain a high acceleration
  value over real-time execution. Consequently, a dynamic
  power injection interface is proposed for the coexistence of the
  two simulation types. The reconfigurability and parallelism of
  the field-programmable gate arrays (FPGAs) enable the whole
  system to be executed in FTRT mode with 51 times acceleration
  over real-time. Meanwhile, three case studies are emulated
  and the results are validated by the off-line simulation tool
  Matlab/Simulink.

• Date created

  2022-10-01

• Subjects / Keywords

  • Battery energy storage system, doubly fed induction generator, dynamic simulation, electromagnetic transients, faster-than-real-time, field programmable gate arrays, hardware emulation, hardware-in-the-loop simulation, microgrids, parallel processing, photovoltaic array, predictive control, real-time systems, transient stability simulation, wind turbine.

• Type of Item

  Article (Published)

• DOI

  https://doi.org/10.7939/r3-tw6k-9t31

• License

  Attribution-NonCommercial 4.0 International