Directional Relaying in the Presence of a Thyristor-Controlled Series Capacitor

作者：Jena Premalata^*; Pradhan Ashok Kumar

来源：IEEE Transactions on Power Delivery, 2013, 28(2): 628-636.

DOI：10.1109/TPWRD.2013.2249538

• Current inversion
• digital relay
• directional relay
• thyristor-controlled series capacitor (TCSC)
• transmission-line fault
• voltage inversion

This paper proposes a fault direction estimation technique for a line with a thyristor-controlled series capacitor (TCSC). Such a compensated line imposes problems to directional relaying schemes due to reactance modulation, current, and voltage inversion issues and TCSC-control action. Three positive-sequence-based classifiers are combined in an integrated approach to estimate the direction of fault for a line with TCSC. The method is tested for different fault situations, such as high resistance fault, close-in fault, as well as voltage and current inversions, and is found to be accurate.

• 出版日期2013-4