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New analysis on two‐variable converter impedance model in grid‐connected systems
2021
IET Renewable Power Generation
This paper presents an in-depth analysis for the two-variable impedance model of a gridconnected system. The two-variable model describes the impedance using the frequency as well as the operating point variable. The impedance-based stability analysis method cannot be directly applied because the conventional models are derived for a specific steady-state operating point and the operating point varies during operation. Thus, this paper develops a new analysis method to shed light on the role
doi:10.1049/rpg2.12265
fatcat:qypm7oj5vjfvna7f7oxwoc3f2e