The IUP Journal of Electrical and Electronics Engineering
An Analysis of Fault Location in a Transmission Line with and Without TCSC
Article Details
| Pub. Date | : Apr, 2020 |
|---|---|
| Product Name | : The IUP Journal of Electrical and Electronics Engineering |
| Product Type | : Article |
| Product Code | : IJEEE30420 |
| Author Name | : Okumu Cephas, Akshay A Pandya |
| Availability | : YES |
| Subject/Domain | : Engineering |
| Download Format | : PDF Format |
| No. of Pages | : 16 |
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Abstract
In modern transmission lines, the use of Flexible AC Transmission System (FACTS) devices on grid is demanding due to the advanced use of power electronics. The paper analyzes Thyristor Controlled Series Capacitor (TCSC) on a transmission line since different researchers have proved that the use of series compensators on a power grid is the cheapest way of ensuring the system improved stability, increased power transfer capability, reduced transmission losses, enhanced voltage control and more power control. Various faults due to TCSC malfunctioning in fault location affect the continuous supply of electric energy, causing losses to companies and also affecting consumers. Therefore correct location of fault is important to enable quick repair. The paper discusses operational characteristics and malfunctioning of TCSCs and Fault Section Indicator (FSI) plots which can be applied to locate the exact position of fault in a transmission line to eliminate dependence on distance relay.
Description
The use of Thyristor Controlled Series Capacitor (TCSC) in the Flexible AC Transmission Systems (FACTS) has led to a great increase in power transfer capability. Other benefits include improvement in voltage regulation, and power stability (Mohan and Rajiv, 2002). With distance protection, in a common form, the non-unit systems offer economical and technical importance. The greatest advantage of distance protecting circuits is that the protected circuit is not dependent on the origin or the different sources of originality (Meikandasivam et al., 2014). It is again a simple method to apply because its operating capacity is faster than the fault protected circuit line (Mohan and Rajiv, 2002). It can be fast in operation for faults located along most of the protected circuit (Guowen et al., 2004). It provides remote back up function and primary single scheme (Guowen et al., 2004), making it an easily adaptable protection scheme if applied with a signalizing channel and hence suitable for reclosing with high speed and protection of a critical transmission (Scott and Karady, 1994).
Keywords
Power flow, Firing angle, Line current, Capacitor voltage, Inductive vernier mode, Fault location, Flexible AC Transmission System (FACTS), Thyristor Controlled Series Capacitor (TCSC)
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