Impedance and Damping Characteristics of Grid-Connected VSCs With Power Synchronization Control Strategy

被引：52

作者：

Alawasa, Khaled Mohammad ^{[1
]}

Mohamed, Yasser Abdel-Rady I. ^{[1
]}

机构：

[1] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB T6G 2V4, Canada

来源：

IEEE TRANSACTIONS ON POWER SYSTEMS | 2015年 / 30卷 / 02期

关键词：

Electrical damping; input impedance; power synchronization control; small-signal stability; sub-synchronous interaction; TORSIONAL INTERACTION; CONVERTERS; INVERTERS; HVDC;

D O I：

10.1109/TPWRS.2014.2332179

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：

Modeling and analysis of the output impedance of a grid-connected voltage-sourced converter (VSC)-based system under the recently-developed power synchronization control topology is presented in this paper. The impact of impedance passivity on subsynchronous damping profile of an electrically-nearby synchronous generator is then characterized. The impacts of key factors such as control modes and control parameter are addressed. A comparison with the standard vector control strategy is also presented. The results reveal that under this type of control, a VSC does not have negative impact on sub-synchronous dynamics; on the contrary, it has a positive impact, compared with commonly used vector current control where the latter has a potential to degrade the system damping. Time-domain simulation results are presented to validate the theoretical analysis.

引用

页码：952 / 961

页数：10

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