TRANSIENT AC VOLTAGE RELATED PHENOMENA FOR HVDC SCHEMES CONNECTED TO WEAK AC SYSTEMS

被引:27
|
作者
PILOTTO, LAS
SZECHTMAN, M
HAMMAD, AE
ANDERSSON, G
LISS, G
机构
[1] ABB POWER SYST AB,LUDVIKA,SWEDEN
[2] ABB ASEA BROWN BOVERI,CH-5401 BADEN,SWITZERLAND
关键词
VOLTAGE STABILITY; HVDC CONVERTER CONTROLS; DIGITAL SIMULATION;
D O I
10.1109/61.141857
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
A didactic explanation of voltage stability associated phenomena at HVDC terminals is presented. Conditions leading to ac voltage collapse problems are identified. A mechanism that excites control-induced voltage oscillations is shown. The voltage stability factor is used for obtaining the maximum power limits of ac/dc systems operating with different control strategies. Correlation to Pd x Id curves is given. Solutions for eliminating the risks of voltage collapse and for avoiding control-induced oscillations are discussed. The results are supported by detailed digital simulations of a weak ac/dc system using EMTP.
引用
收藏
页码:1396 / 1404
页数:9
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