DynaShape: Dynamic Shaping of Grid Response with Inverters

Bala Kameshwar Poolla, Yashen Lin, Andrey Bernstein, Enrique Mallada, Dominic Gross

Research output: NRELPresentation


We consider the problem of controlling the frequency of low-inertia power systems via inverter-based resources (IBRs) that are weakly connected to the grid. We propose a novel grid-forming control strategy, the so-called frequency shaping control, that aims to shape the frequency response of synchronous generators (SGs) to load perturbations so as to efficiently arrest sudden frequency drops. Our solution relaxes several existing assumptions in the literature and is able to navigate trade-offs between peak power requirements and maximum frequency deviations. Finally, we analyze the robustness to imperfect knowledge of network parameters, while particularly highlighting the importance of accurate estimation of these parameters.
Original languageAmerican English
Number of pages15
StatePublished - 2023

Publication series

NamePresented at the Power Electronic Grid Interface (PEGI) Industry Workshop, 24-25 May 2023, Arvada, Colorado

NREL Publication Number

  • NREL/PR-5D00-86565


  • frequency-shaping control
  • grid-forming devices
  • inverter-based resources
  • weakly-coupled networks


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