@inproceedings{2be35499c0124a7e88d96c5730191602,
title = "Passivity analysis and enhancement of voltage control for voltage-source converters",
abstract = "The grid-forming control is increasingly used with distributed generation systems either in grid-connected mode or islanded mode. The voltage control is essential to a grid-forming converter, which is generally realized with a dual-loop voltage-current control. This paper evaluates the passivity of the output impedance of the dual-loop voltage control, where two voltage regulators are compared, and it turns out that the non-passive region is inevitable in the high-frequency range, which may lead to harmonic instability. An output current feedforward control is then proposed to eliminate the non-passive region below the Nyquist frequency. Lastly, simulations and experimental results corroborate the analysis.",
keywords = "Current feedforward, Harmonic stability, Passivity, Voltage control, Voltage-source converter",
author = "Yicheng Liao and Xiongfei Wang",
year = "2019",
month = sep,
doi = "10.1109/ECCE.2019.8912790",
language = "English",
series = "IEEE Energy Conversion Congress and Exposition",
pages = "5424--5429",
booktitle = "Proceedings of 2019 IEEE Energy Conversion Congress and Exposition (ECCE)",
publisher = "IEEE Press",
note = "2019 IEEE Energy Conversion Congress and Exposition (ECCE) ; Conference date: 29-09-2019 Through 03-10-2019",
}