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http://hdl.handle.net/10397/108453
Title: | A new stationary frame multi-input multi-output EMT-level frequency scanning method for inverter based resources | Authors: | Lei, M Karaagac, U Ghafouri, M Stepanov, A Mahseredjian, J |
Issue Date: | Oct-2023 | Source: | Energy reports, Oct. 2023, v. 9, suppl. 10, p. 748-756 | Abstract: | Impedance-based stability analysis (IBSA) is an effective method to identify subsynchronous interaction (SSI) problem between the inverter-based resources (IBRs) and series compensated or weakly tied AC grids. The electromagnetic transient (EMT) level positive sequence and dq-frame frequency scanning methods (p-scan and dq-scan, respectively) are used to obtain the sequence single-input single-output (SISO) and dq multi-input multi-output (MIMO) impedance of IBRs, respectively. The dq MIMO impedance usage in IBSA provides more accurate results compared to the sequence SISO impedance. This paper proposes an EMT-level αβ-frame frequency scanning method (αβ-scan) to obtain the αβ MIMO impedance and its usage in IBSA. The αβ-scan requires significantly less time compared to dq-scan for the convergence of MIMO IBR impedance representation and offers similar accuracy with dq-scan in IBSA. The accuracy of the proposed αβ MIMO IBSA is validated by comparing with dq MIMO IBSA and EMT simulations on series capacitor SSI cases with different type IBRs (Doublyfed induction generator (DFIG)-based wind park (WP) and full-scale converter (FSC)-based WP). This paper also uses a multivariable structure function(MSF)-based method for the first time in IBSA of SSI to achieve Bode plot-based analysis for providing better visualized presentation of resonance frequency and stability margins compared to generalized Nyquist criterion. | Keywords: | EMT-level frequency scanning IBSA Inverter based resource Stationary frame Αβ MIMO impedance Αβ-frame |
Publisher: | Elsevier BV | Journal: | Energy reports | EISSN: | 2352-4847 | DOI: | 10.1016/j.egyr.2023.05.129 | Description: | 2022 The 3rd International Conference on Power and Electrical Engineering (ICPEE 2022) 29-31 December, Singapore | Rights: | © 2023 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons. org/licenses/by/4.0/). The following publication Meng, L., Karaagac, U., Ghafouri, M., Stepanov, A., & Mahseredjian, J. (2023). A new stationary frame multi-input multi-output EMT-level frequency scanning method for inverter based resources. Energy Reports, 9, 748-756 is available at https://doi.org/10.1016/j.egyr.2023.05.129. |
Appears in Collections: | Conference Paper |
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