Linear Time-Periodic Theory-Based Harmonic Resonance Analysis of Converter-Dominated Power System

被引：3

作者：

Yang, Huoming ^{[1
]}

Eggers, Malte ^{[1
]}

Just, Hendrik ^{[1
]}

Teske, Peter ^{[1
]}

Dieckerhoff, Sibylle ^{[1
]}

机构：

[1] Tech Univ Berlin, Fak Elektrotech & Informat 4, D-10623 Berlin, Germany

来源：

IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS | 2021年 / 9卷 / 06期

关键词：

Harmonic analysis; Power system harmonics; Converters; Resonant frequency; Impedance; Couplings; Trajectory; Converter-dominated power systems; harmonic resonance; linear time-periodic (LTP) theory; resonance mode analysis (RMA); Wirtinger calculus; SENSITIVITY;

D O I：

10.1109/JESTPE.2020.3041945

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This article deals with the harmonic resonance investigation of modern converter-dominated power systems considering the asymmetric operation conditions. Initially, the complex domain harmonic transfer matrix (HTM) models for the grid-following voltage source converters (VSCs) and the asymmetric network are derived to fully capture the frequency coupling effect. Then, the classical resonance mode analysis (RMA) is generalized by describing the system with a time-periodic impedance matrix obtained from the reformulation of the HTMs to identify the resonance frequencies. Based on the eigen-analysis of the time-periodic matrix, the definition of the participation factor is modified to determine the propagation areas and the corresponding severities of a certain resonance. In addition, the impact of the VSC's controller and the grid asymmetry on the resonance characteristics are evaluated using a sensitivity analysis method. Finally, the effectiveness of the proposed methodology is validated by case studies in an exemplary multiple-converter system.

引用

页码：7422 / 7435

页数：14

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