Thyristor and gate-controlled series capacitors: A comparison of components rating

被引：23
|
作者：
de Souza, Luiz Felipe Willcox [1 ]
Watanabe, Edson Hirokazu [2 ]
da Rocha Alves, Jose Eduardo, Jr. [1 ]
机构：
[1] CEPEL, BR-21941911 Rio De Janeiro, Brazil
[2] Univ Fed Rio de Janeiro, BR-21941972 Rio De Janeiro, Brazil
来源：
IEEE TRANSACTIONS ON POWER DELIVERY | 2008年 / 23卷 / 02期
关键词：
flexible ac transmission systems (FACTS); gate-controlled series capacitor (GCSC); series compensation; thyristor-controlled series capacitor (TCSC);
D O I：
10.1109/TPWRD.2008.917941
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：
The thyristor-controlled series capacitor (TCSC) is a commercially available flexible ac transmission system (FACTS) device developed for controlled compensation of transmission-line impedance, which consequently leads to the control of transmission-line power flow. The gate-controlled series capacitor (GCSC), a FACTS device based on a pair of gate-commutated switches in parallel with a capacitor, can also control impedance and power flow of transmission lines. Here, it is shown that in many situations where a controllable series compensator must be installed, the GCSC may be used instead of the TCSC, possibly with some advantages. A comparison of the sizing of the TCSC and the GCSC components is presented. It is shown that the capacitor in the GCSC can have lower megavolt-amperes than in the TCSC, especially for power-flow control applications. Also, it is shown that the thyristor valve in the TCSC needs to have a higher current rating than the gate-commutated switch valve in the GCSC.
引用
收藏
页码：899 / 906
页数：8
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