Simulations of prefiring NGH damping scheme on suppressing torsional oscillations using EMTP

被引：9

作者：

Wang, L

机构：

[1] Department of Electrical Engineering, National Cheng Kung University

来源：

IEEE TRANSACTIONS ON POWER SYSTEMS | 1997年 / 12卷 / 02期

关键词：

subsynchronous resonance; NGH scheme; torsional oscillations;

D O I：

10.1109/59.589744

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 paper presents the simulation results of the employment of both conventional firing and prefiring NGH damping schemes on damping unstable torsional oscillations occurring in the IEEE Second Benchmark Model, system-1 which contains a turbine-generator set connected to an infinite bus through two parallel transmission lines, one of which, is series-capacitor compensated. The electromagnetic transient program (EMTP) is employed to simulate the damping effects respectively contributed by the two damping NGH schemes. The simulation results show that the NGH device is capable to damp out low level subsynchronous oscillations of the studied system much faster by prefiring at an advanced angle than by conventional firing scheme.

引用

页码：882 / 888

页数：7

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