SISO Transfer Functions for Stability Analysis of Grid-Connected Voltage-Source Converters

Hongyang Zhang; Xiongfei Wang; Lennart Harnefors; Hong Gong; Jean Philippe Hasler; Hans Peter Nee

doi:10.1109/TIA.2019.2898978

SISO Transfer Functions for Stability Analysis of Grid-Connected Voltage-Source Converters

Hongyang Zhang, Xiongfei Wang^*, Lennart Harnefors, Hong Gong, Jean Philippe Hasler, Hans Peter Nee

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Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

53 Citationer (Scopus)

Abstract

Converter-grid interaction is of great interest in a weak-grid condition. This paper presents a single-input-single-output (SISO) open-loop transfer function for the stability analysis of grid-connected voltage-source converters. Differing from the conventional input impedance method and the eigenvalue analysis, an alternative multi-input-multi-output closed-loop system is developed in the paper and it eventually yields an SISO open-loop transfer function. This enables the application of a single Nyquist curve for analyzing the overall system stability. The model is validated against time-domain simulations as well as experimental results showing excellent accuracy for predicting the system stability.

Originalsprog	Engelsk
Artikelnummer	8640057
Tidsskrift	IEEE Transactions on Industry Applications
Vol/bind	55
Udgave nummer	3
Sider (fra-til)	2931-2941
Antal sider	11
ISSN	0093-9994
DOI	https://doi.org/10.1109/TIA.2019.2898978
Status	Udgivet - maj 2019

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10.1109/TIA.2019.2898978

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Multi-Timescale Stability of Modular Cascaded Power Electronic Systems
Wang, X. & Wu, H.
01/05/2017 → 30/04/2020
Projekter: Projekt › Forskning

Citationsformater

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keywords = "Multi-input-multi-output (MIMO), Nyquist stability criterion, Single-input-single-output (SISO), Voltage-source converter (VSC), Weak grid",

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AU - Harnefors, Lennart

AU - Gong, Hong

AU - Hasler, Jean Philippe

AU - Nee, Hans Peter

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N2 - Converter-grid interaction is of great interest in a weak-grid condition. This paper presents a single-input-single-output (SISO) open-loop transfer function for the stability analysis of grid-connected voltage-source converters. Differing from the conventional input impedance method and the eigenvalue analysis, an alternative multi-input-multi-output closed-loop system is developed in the paper and it eventually yields an SISO open-loop transfer function. This enables the application of a single Nyquist curve for analyzing the overall system stability. The model is validated against time-domain simulations as well as experimental results showing excellent accuracy for predicting the system stability.

AB - Converter-grid interaction is of great interest in a weak-grid condition. This paper presents a single-input-single-output (SISO) open-loop transfer function for the stability analysis of grid-connected voltage-source converters. Differing from the conventional input impedance method and the eigenvalue analysis, an alternative multi-input-multi-output closed-loop system is developed in the paper and it eventually yields an SISO open-loop transfer function. This enables the application of a single Nyquist curve for analyzing the overall system stability. The model is validated against time-domain simulations as well as experimental results showing excellent accuracy for predicting the system stability.

KW - Multi-input-multi-output (MIMO)

KW - Nyquist stability criterion

KW - Single-input-single-output (SISO)

KW - Voltage-source converter (VSC)

KW - Weak grid

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DO - 10.1109/TIA.2019.2898978

M3 - Journal article

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SISO Transfer Functions for Stability Analysis of Grid-Connected Voltage-Source Converters

Abstract

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Projekter

Multi-Timescale Stability of Modular Cascaded Power Electronic Systems

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