An Aggregated Model for Power Electronic System Based on Multi-Port Network Reduction Method

An aggregated model is proposed to reduce the dimension of the nodal admittance matrix in a converter-based power system application using a multi-port network reduction method. Further, the eigenvalues of the submatrices of the nodal admittance matrix can be used to predict the terminal behavior of the aggregated model. Case studies validate theoretical analysis with experimental results.

[1]  Frede Blaabjerg,et al.  Harmonic Stability in Power Electronic-Based Power Systems: Concept, Modeling, and Analysis , 2019, IEEE Transactions on Smart Grid.

[2]  Jian Sun,et al.  Impedance Modeling and Analysis of Grid-Connected Voltage-Source Converters , 2014, IEEE Transactions on Power Electronics.

[3]  Xu Cai,et al.  A Modified Sequence-Domain Impedance Definition and Its Equivalence to the dq-Domain Impedance Definition for the Stability Analysis of AC Power Electronic Systems , 2016, IEEE Journal of Emerging and Selected Topics in Power Electronics.

[4]  Andrea Pierenrico Ferrero,et al.  Multiport vector network analyzer calibration: a general formulation , 1994 .

[5]  Frede Blaabjerg,et al.  Reflection Coefficient Stability Criterion for Multi-Bus Multi-VSC Power Systems , 2020, IEEE Access.

[6]  Frede Blaabjerg,et al.  Distributed Power-Generation Systems and Protection , 2017, Proceedings of the IEEE.

[7]  Wilsun Xu,et al.  Application of Modal Sensitivity for Power System Harmonic Resonance Analysis , 2007, IEEE Transactions on Power Systems.

[8]  T. Reveyrand,et al.  Multiport conversions between S, Z, Y, h, ABCD, and T parameters , 2018, 2018 International Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits (INMMIC).

[9]  Frede Blaabjerg,et al.  Unified Impedance Model of Grid-Connected Voltage-Source Converters , 2018, IEEE Transactions on Power Electronics.

[10]  Bo Wen,et al.  Analysis of D-Q Small-Signal Impedance of Grid-Tied Inverters , 2016, IEEE Transactions on Power Electronics.

[11]  Xiongfei Wang,et al.  Two-Port Network Modeling and Stability Analysis of Grid-Connected Current-Controlled VSCs , 2020, IEEE Transactions on Power Electronics.

[12]  Wilsun Xu,et al.  Harmonic resonance mode analysis , 2005, IEEE Transactions on Power Delivery.

[13]  Bo Wen,et al.  Impedance-Based Analysis of Grid-Synchronization Stability for Three-Phase Paralleled Converters , 2014, IEEE Transactions on Power Electronics.