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Vol. 209, Issue 2, February 2017, pp. 45-49

 

Bullet

 

Harmonic Power Angle Monitoring for Unsymmetrical Fault Diagnosis in Distribution Network
 

1, * Debopoma KAR RAY, 2 Surajit CHATTOPADHYAY, 3 Kaushik DAS SHARMA and 4 Samarjit SENGUPTA

1 EE Department, MCKVIE, 243, G.T. Road (N), Liluah, Howrah, 711204, India
2 EE Department, GKCIET, TTC Campus, Maliha, Malda, W.B., 732102, India
3, 4 Department of Applied Physics, University of Calcutta, 92, APC Road, Kolkata, 700009, India

* E-mail: debopoma86@gmail.com

 

Received: 8 December 2016 /Accepted: 30 January 2017 /Published: 28 February 2017

Digital Sensors and Sensor Sysstems

 

Abstract: In this paper identification of a faulty load bus has been done in a multi-bus power system for double line fault, monitoring the feeder operating points and load angles in presence of various frequencies in harmonic P-d plane. The usage of a new advanced variable slack bus incorporated converged power flow analysis determines the load angle, real power and feeder operating points for normal and fault in various load buses of the network in presence of some chosen harmonic frequencies in the system. The characteristic operating point shifting of the normal and fault operating points in normal and fault P-d planes, determines the rule sets for identifying the fault buses in the grid system considered. This analysis can also be extended for other fault analysis in both online and offline conditions of the system.

 

Keywords: Fault detection, Harmonic power, Load angle, Line to line fault, Operating point, Stability zone.

 

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