A Hybrid Scheme for Fault Locating for Transmission Lines with TCSC

presently, the use of series compensators in AC transmission systems, especially in long transmission lines, is an effective and economical measure to increase the transmission capability and improve the transient and lasting stability of the system. with the increasing competition due to the privatization of the electricity industry and the desire to provide better services to customers with critical loads. It has led to the development of speed and reliability of fault locating methods for transmission and distribution systems. It can be difficult to locate the fault. There are various methods for locating in series compensated lines with series equipment. This paper presents a novel A Hybrid Scheme algorithm on series compensated lines with the presence of Thyristor Controlled Capacitor Compensator (TCSC). The proposed algorithm can theoretically detect the fault location in transmission lines equipped with series compensators. This algorithm uses the TCSC time domain model and the distributed transmission line model. In addition to detecting the fault location, it can detect the type and direction of the fault regardless of the location of the series compensator in the shortest time. The proposed algorithm was presented and the simulation was modeled in MATLAB software. The results show that the proposed algorithm increases the accuracy and at the same time speeds up the detection of the fault location in the series compensated transmission lines in order to prevent the malfunction of the relay operation.