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

被引：0

作者：

Zhang, Hongyang ^{[1
]}

Harnefors, Lennart ^{[2
]}

Wang, Xiongfei ^{[3
]}

Hasler, Jean-Philippe ^{[1
]}

Nee, Hans-Peter ^{[4
]}

机构：

[1] ABB, Power Grids Div, Vasteras, Sweden

[2] ABB, Corp Res, Vasteras, Sweden

[3] Aalborg Univ, Dept Energy Technol, Aalborg, Denmark

[4] KTH Royal Inst Technol, Dept Elect Power & Energy Syst, Stockholm, Sweden

来源：

2018 INTERNATIONAL POWER ELECTRONICS CONFERENCE (IPEC-NIIGATA 2018 -ECCE ASIA) | 2018年

关键词：

multi-input multi-output (MIMO); Nyquist stability criterion; single-input single-output (SISO); voltage-source converter (VSC); weak grid; OPERATION;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Converter grid interaction is of great interest in a weak-grid condition. In this paper, an alternative multi-input multi-output closed-loop system is developed for the stability analysis of grid-connected voltage-source converters. In contrast to the conventional dq-impedance model and the eigenvalue analysis, this model eventually yields a single-input single-output transfer function. This enables to apply a single Nyquist curve for analyzing the overall system stability. The model is validated against time domain simulations and it shows excellent accuracy for predicting the system stability.

引用

页码：3684 / 3691

页数：8

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