References
[1] D.Tziouvaras & D. Dou, “Out of Step Protection Fundamentals And Advancements”, Schweitzer Engineer-ing Laboratories, Inc. USA 2003.
[2] William .D. Stevenson, “Element of Power System Analysis”, Fourth – Edition, New York, McGraw-Hill, Inc, 1982.
[3] G. Benmouyal & D. Tziouvaras, “Zero Setting Power Swing Blocking Protection”, 31st Annual Western Protective Relay Conference, Spokane, Washington. October 19-21, 2004 .
[4] D. Hou & S. Turner, “SEL-321-5 Relay Out-of-Step Logic” SEL, Inc. Application Guide AG97-13, July 23, 1997.
[5] J. Mooney & N. Fischer, “Application Guidelines for Power Swing Detection on Power Systems”, Proceedings of the 32nd Western Protective Relay Conference, Spokane, WA, October 2005.
Tikrit Journal of Engineering Sciences (2010) 17(1) 21- 31
Modeling and Simulation of Out of Step Blocking Relay for Power Swing using Concentric Polygons Scheme
Ahmad A. Al-Badrany |
Technical Institute/ Mosul, Iraq |
Abstract
This paper investigates a power swing effect on a distance protection relay performance installed on (HV/EHV) transmission line as well as power system stability. A conventional distance relay can’t properly operate under transient stability conditions; therefore, it cause mol-operation, and it will adversely impact on its trip signals. To overcome this problem, the Out Of Step (OOS) relay has modeled and simulated to joint with distance relay to supervise and control on its trip signals response. The setting characteristics technique of the OOS based on concentric polygons scheme method to detect power swing under transient stability situation. This study ia a modeling and simulating using (Maltab\ Simulink) software. A Two relays had been performed and tested with two equivalents network connected to ends. The results of this study showed an activity and reliability of this way to control the distance relay response under a transient stability conditions and it indicated the possibility to find out faults which may occur at period of power swing.
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Keywords: Power swing, distance relay out of step protection technique.