A method to detect symmetrical faults during power swing for distance protection of transmission lines

2020 ◽  
Author(s):  
V. Pradhan ◽  
O.D. Naidu
Keyword(s):  
Transmission Lines ◽  
Distance Protection ◽  
Power Swing

scholarly journals Distance Protection of Series Capacitor Compensated Lines: Practical Considerations, Industrial Status and Development

Electricity ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 168-186
Author(s):  
Md Tanbhir Hoq ◽  
Nathaniel Taylor
Keyword(s):  
Transmission Lines ◽  
Transmission Network ◽  
Distance Protection ◽  
Academic Literature ◽  
System Protection ◽  
The Status ◽  
In Series ◽  
Insight Into ◽  
Series Capacitor ◽  
Current Inversion

The introduction of series capacitors in transmission lines causes problems in terms of reliability and the security of distance protection relays. As distance protection is widely used in the transmission network, the challenge of applying it to series compensated lines has been taken up by utilities and relay manufacturers in various ways. In the field of power system protection, developments are largely driven by relay manufacturers, and are often not published in the academic literature; the status and trend of the relay manufacturer’s development are better found in their product manuals and patent activity. Further insight into specific implementations by transmission utilities can be found from publications in industry-led forums and some academic journals. This article surveys the status and development of distance protection for series compensated lines, with a focus on industrial implementation and practical considerations. Factors that influence the protection of series compensated lines are presented. Implementation examples reported by utilities are summarized as examples of the different situations encountered and the methods used to deal with them. It is observed that many utilities use communication-aided protection in series compensated lines, and distance protection is used with reduced reach. Solutions described in relay manuals are presented to demonstrate the manufacturers’ approaches to problems associated with series capacitor protection. While there are methods to counter voltage inversion, current inversion seems to represent a more serious challenge. A patent overview indicates the trends in this domain to be moving towards time-domain-based faster protection methods.

scholarly journals Enhancing Distance Protection of Long Transmission Lines Compensated With TCSC and Connected With Wind Power

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 46717-46730
Author(s):  
Ahmed Abdel Rahman Mohamed ◽  
Hebatallah Mohamed Sharaf ◽  
Doaa Khalil Ibrahim
Keyword(s):  
Wind Power ◽  
Transmission Lines ◽  
Distance Protection

Digital distance protection of transmission lines in the presence of SSSC

2012 ◽  
Vol 43 (1) ◽  
pp. 712-719 ◽  
Author(s):  
Amir Ghorbani ◽  
Babak Mozafari ◽  
Ali Mohammad Ranjbar
Keyword(s):  
Transmission Lines ◽  
Distance Protection

Simulation of Distance Protection for Parallel Transmission Lines

2017 ◽  
Author(s):  
Mohammed Al-Mahrooqi ◽  
Mahnd AL-Yaqoubi ◽  
Haitham AL-Ghafri ◽  
Mohammed AL-Saadi ◽  
Hisham Soliman ◽  
...  
Keyword(s):  
Transmission Lines ◽  
Distance Protection ◽  
Parallel Transmission

scholarly journals A Study on an Out-of-Step Detection Algorithm Using the Time Variation of Complex Power: Part I, Mathematical Modeling

Energies ◽  
2020 ◽  
Vol 13 (16) ◽  
pp. 4065
Author(s):  
You-Jin Lee ◽  
Jeong-Yong Heo ◽  
O-Sang Kwon ◽  
Chul-Hwan Kim
Keyword(s):  
Transmission Lines ◽  
Smart Grids ◽  
Detection Algorithm ◽  
Grid System ◽  
Step Detection ◽  
Power Swing ◽  
Complex Power ◽  
Power Part ◽  
Micro Grid ◽  
The Stability

Power quality and stability have become the most important issues in power system operations, Micro Grids, and Smart Grids. Sensitive equipment can be seriously damaged when exposed to unstable power swing conditions. An unstable system may cause serious damage to Micro Grid System elements such as generators, transformers, transmission lines, and so forth. Therefore, out-of-step detection is essential for the safe operation of a Micro Grid system. In general, Equal Area Criterion (EAC) is a method for evaluating the stability of Smart Grid systems. However, EAC can be performed only if it is possible to analyze the active power and generator angle. This paper presents an analysis of the trajectory of complex power using a mathematical model. The variation of complex power is analyzed using a mathematical method, and then the relationship between complex power and EAC is presented, and a simulation performed. Later, in part II, a novel out-of-step detection algorithm based on part I will be presented and tested.

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