The effects of flexible AC transmission systems device on protective relay

Ding, Fan; Zhang, Chengxue; Hu, Zhijian; Wang, Wei

doi:10.1109/icpst.2002.1047258

Cited by 8 publications

(5 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…ANN is a simple, efficient and robust classification tool that can deal with non-linear inputs and can also be implemented in digital systems [52]. Using ANN, different methods are proposed for detection/zone identification and classification of faults in TCSC/UPFC compensated transmission lines [21,24,[53][54][55][56][57][58][59]. The relative merits and demerits of each of the reported methods are discussed below.…”

Section: Algorithms Based On Computational Intelligence Techniques Wimentioning

confidence: 99%

State‐of‐the‐art on the protection of FACTS compensated high‐voltage transmission lines: a review

Biswas

Nayak

2018

High Voltage

View full text Add to dashboard Cite

In recent years, the inclusion of flexible AC transmission systems (FACTS)-based compensating devices such as a thyristor-controlled series capacitor (TCSC) and a unified power flow controller (UPFC) has been increased in high-voltage power transmission systems due to numerous technical and economical benefits. However, the operation of such FACTS devices introduces harmonics and non-linearity in power system and causes fast changes in line impedance. As a result, the most widely used fixed impedance setting based distance relaying scheme finds limitation in protecting such compensated lines. Significant research has been carried out in recent years to develop new algorithms and methods to address the problem. This paper presents a comprehensive review of recent developments in the protection of TCSC/UPFC compensated high-voltage transmission lines. The relative merits and demerits of each of the available methods are also presented for comparison. Prior to detail review, the impact of TCSC/UPFC on distance protection is evaluated by using data generated through EMTDC/ PSCAD on a 400 kV two-bus test power system. This study can be useful to both academic researchers and practicing engineers to gain insight on the protection of FACTS compensated transmission lines and for further development of newer algorithms. 2 FACTS compensated high-voltage transmission lines: protection challenges The basic configuration and the different operating modes of TCSC and UPFC controllers and their impacts on the distance protection are well documented in [10-16], respectively. However, for the sake of completeness, in this section, the impact of TCSC/UPFC compensated transmission lines on the performance of distance relay is evaluated by using data simulated through EMTDC/ PSCAD on a 400 kV test power system.

show abstract

Section: Algorithms Based On Computational Intelligence Techniques Wimentioning

confidence: 99%

State‐of‐the‐art on the protection of FACTS compensated high‐voltage transmission lines: a review

Biswas

Nayak

2018

High Voltage

View full text Add to dashboard Cite

show abstract

“…Impacts of instrument transformers connection point are studied in [5] for UPFC insulation at the near end by means of schematic equations. The analytical and simulation results of the application of distance relays for the protection of transmission systems employing UPFC are presented in [6].…”

Section: Introductionmentioning

confidence: 99%

Modified distance protection in presence of UPFC on a transmission line

Jamali¹,

Kazemi²,

Shateri³

2010

9th IET International Conference on AC and DC Power Transmission (ACDC 2010)

View full text Add to dashboard Cite

This paper presents a modified distance protection scheme in the presence of Unified Power Flow Controller (UPFC), one of the Flexible Alternating Current Transmission System (FACTS) devices. The presence of UPFC on a transmission line has a great influence on the measured impedance at the relaying point. The measured impedance itself depends on the power system structural conditions, pre-fault loading, and especially the fault resistance. In the presence of UPFC, its controlling and structural parameters as well as its installation point affects the measured impedance. Therefore, the conventional distance schemes might not fulfil the protective duties satisfactorily and new approaches are required.

show abstract

“…There are several factors affecting the measured impedance at the relaying point. Some of these factors are related to the power system parameters prior to the fault instance, which can be categorized into two groups [1]- [4]. First group is the structural conditions, represented by the short circuit levels at the transmission line ends, whereas the second group is the operational conditions, represented by the line load angle and the voltage magnitude ratio at the line ends.…”

Section: Introductionmentioning

confidence: 99%

Effects of Instrument Transformers Connection point on Measured Impedance by Distance Relay in Presence of SSSC

Kazemi

Jamali

Shateri

2006

2006 International Conference on Power System Technology

View full text Add to dashboard Cite

This paper presents the measured impedance at the relaying point in the presence of a series connected Flexible Alternating Current Transmission System (FACTS) device, i.e. Static Synchronous Series Compensator (SSSC). The presence of SSSC on a transmission line has a great influence on the tripping characteristic of distance relays. Distance relay tripping characteristic itself depends on the power system structural conditions (short circuit levels at the line ends), pre-fault operational conditions (load angle and voltage magnitude ratio at the line ends), and especially the ground fault resistance. In the presence of SSSC, its controlling parameters as well as the connection point of the instrument transformers of distance relay affect the tripping characteristic. Here, the measured impedance at the relaying point is calculated due to concerning parameters.

show abstract

The effects of flexible AC transmission systems device on protective relay

Cited by 8 publications

References 7 publications

State‐of‐the‐art on the protection of FACTS compensated high‐voltage transmission lines: a review

State‐of‐the‐art on the protection of FACTS compensated high‐voltage transmission lines: a review

Modified distance protection in presence of UPFC on a transmission line

Effects of Instrument Transformers Connection point on Measured Impedance by Distance Relay in Presence of SSSC

Contact Info

Product

Resources

About