UTILIZING HVDC TO DAMP POWER OSCILLATIONS

被引：98

作者：

SMED, T

ANDERSSON, G

机构：

[1] Dept, of Electric Power Systems., Royal Institute of Technology, Stockholm

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 1993年 / 8卷 / 02期

关键词：

Damping - Electric waveforms - Modulation - Oscillations;

D O I：

10.1109/61.216868

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：

In this paper, clamping of slow oscillations with active and reactive power modulation of HVDC-links is analysed with the aim of gaining a physical insight into the problem. The analysis shows that active power modulation is efficient when applied a short mass-scaled electrical distance from one of the swinging machines, and reactive power modulation is most efficient when there exists a well-defined power flow direction and the modulation is made at a point close to the electrical midpoint between the swinging machines. It is shown that the intuitively appealing feedback signals frequency and derivative of the voltage are appropriate for active and reactive power modulation, respectively. The impact of the constraints imposed by the HVDC equations are analysed, and it is determined when the implicit reactive power modulation resulting from constant gamma control may be detrimental for the damping.

引用

页码：620 / 627

页数：8