Computationally Efficient Impedance Scanning Approach for Inverter-based Resources


Ouyang C., Furlaneto R. M., Meng L., Jacobs K., Xue T., KARAAĞAÇ U., ...More

50th Annual Conference of the IEEE Industrial Electronics Society, IECON 2024, Illinois, United States Of America, 3 - 06 November 2024, (Full Text) identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/iecon55916.2024.10905133
  • City: Illinois
  • Country: United States Of America
  • Keywords: electromagnetic transient simulation, frequency scanning schemes, impedance-based stability analysis, SSCI, wind park
  • Middle East Technical University Affiliated: Yes

Abstract

Impedance-based stability assessment (IBSA) is an effective method to study sub-synchronous control interaction (SSCI) with inverter-based resources (IBRs) in modern power systems. An IBR's required frequency-dependent impedance model can be obtained via the positive sequence scanning method. In this paper, single-sinusoidal signal and multi-sinusoidal signal-based methods for frequency scanning are investigated and evaluated. To benefit from the advantages of both schemes, hybrid scanning is proposed including perturbation signal, amplitude, and frequency segmentation settings. Additionally, a modified quadratic phase shift scheme is proposed for reducing the high magnitudes of multi-sinusoidal signals. All methods are validated and compared using the average value model of a doubly fed induction generator. The guidelines and recommendations are provided for the proper usage of the proposed hybrid scanning in the sub-synchronous frequency range.