Journal of System Simulation
Abstract
Abstract: To facilitate rapid analysis of the oscillation stability mechanism in modular multilevel converter-based high voltage direct current (MMC-HVDC) systems and streamline the simulation process for determining MMC impedance characteristics, a simplified mathematical simulation model for MMC closed-loop impedance is developed using the harmonic state space method. This model considers various control strategies and includes both AC-side and DC-side impedance models. By applying a Nyquist criterion-based impedance analysis method, the stability mechanisms on the AC and DC sides of the MMC are examined. In addition, a data-driven oscillation stability analysis method is also proposed, leveraging a global sensitivity algorithm based on fast model results to identify key parameters influencing MMC oscillation stability. Based on sensitivity analysis results, a parameter adjustment strategy for oscillation suppression is proposed. The simulation results from the MATLAB/Simulinkbased MMC model validate the effectiveness of the proposed method.
Recommended Citation
Wang, Yuhong; Chen, Wensheng; Gao, Shilin; Liao, Jianquan; and Cheng, Yangfan
(2024)
"Harmonic Impedance Modeling and Oscillation Analysis of Modular Multilevel Converter,"
Journal of System Simulation: Vol. 36:
Iss.
12, Article 2.
DOI: 10.16182/j.issn1004731x.joss.24-FZ0803E
Available at:
https://dc-china-simulation.researchcommons.org/journal/vol36/iss12/2
First Page
2755
Last Page
2770
CLC
TP391
Recommended Citation
Wang Yuhong, Chen Wensheng, Gao Shilin, et al. Harmonic Impedance Modeling and Oscillation Analysis of Modular Multilevel Converter[J]. Journal of System Simulation, 2024, 36(12): 2755-2770.
DOI
10.16182/j.issn1004731x.joss.24-FZ0803E
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