Passivity-Based Co-Design of Active Damping and Voltage Controller for Converter-Based Grid Emulator

Zejie Li*, Fangzhou Zhao, Stig Munk-Nielsen, Xiongfei Wang

*Corresponding author for this work

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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To test grid compliances of devices under test (DUT), this paper proposes a passivity-based co-design method for the active damping (AD) and ac voltage controller (VC) used with a converter-based grid emulator. In the approach, a relative passivity depth (RPD) index is introduced to quantify the impact of AD and VC on the impedance passivity. Different from conventional passivity indices, the RPD is independent on the filter plant parameter, and thus enables a more robust co-design of AD and VC. An experimental prototype based on an L-filtered voltage source inverter is tested to validate the effectiveness of proposed method.
Original languageEnglish
Title of host publicationAPEC 2023 - 38th Annual IEEE Applied Power Electronics Conference and Exposition
Number of pages5
Publication date31 May 2023
ISBN (Print)978-1-6654-7540-2
ISBN (Electronic)978-1-6654-7539-6
Publication statusPublished - 31 May 2023
EventAPEC 2023 - Orlando
Duration: 19 Mar 202323 Mar 2023


ConferenceAPEC 2023


  • Passivity
  • active damping
  • co-design
  • relative passivity depth
  • voltage controller


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