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Simulation and Implementation of Solid State Circuit Breaker for the Protection of Power System


Affiliations
1 Sathyabama University, Chennai, India
2 B.S. Abdur Rahman University, Chennai, India
     

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The Solid State Circuit Breakers (SSCBs) which are developed using modern high power semiconductors can replace the conventional mechanical circuit breakers. With the development of power semiconductor technology, the power handling capabilities and switching speed of the power devices have improved tremendously. The Solid State Circuit Breaker uses high power anti parallel switches to carry bidirectional current. During normal operation the solid state circuit breaker is “on”. During faults, the gate of the SSCB is pulse modulated to prevent the circuit current from exceeding a predetermined limit. The load voltage and current is sensed and it is used to turn on and turn off the SSCB. In this paper, a circuit topology for SSCB is developed and simulated using Matlab/Simulink. The hardware model is also developed. Hardware results show satisfactory performance for an SSCB. The SSCB offer many advantages like much faster interruption of over currents, based on over current thresholds; reduced energy flowing into the electrical systems during faults and reduced system ringing during fault interruptions. This paper deals with simulation and implementation of SSCB in multi bus system.

Keywords

Solid State Circuit Breakers (SSCBs), Reclosers, Gate Turn-Off Thyristor (GTO), Gate Commutated Thyristor (GCT).
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  • Simulation and Implementation of Solid State Circuit Breaker for the Protection of Power System

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Authors

A. Kalai Murugan
Sathyabama University, Chennai, India
R. Raja Prabu
B.S. Abdur Rahman University, Chennai, India

Abstract


The Solid State Circuit Breakers (SSCBs) which are developed using modern high power semiconductors can replace the conventional mechanical circuit breakers. With the development of power semiconductor technology, the power handling capabilities and switching speed of the power devices have improved tremendously. The Solid State Circuit Breaker uses high power anti parallel switches to carry bidirectional current. During normal operation the solid state circuit breaker is “on”. During faults, the gate of the SSCB is pulse modulated to prevent the circuit current from exceeding a predetermined limit. The load voltage and current is sensed and it is used to turn on and turn off the SSCB. In this paper, a circuit topology for SSCB is developed and simulated using Matlab/Simulink. The hardware model is also developed. Hardware results show satisfactory performance for an SSCB. The SSCB offer many advantages like much faster interruption of over currents, based on over current thresholds; reduced energy flowing into the electrical systems during faults and reduced system ringing during fault interruptions. This paper deals with simulation and implementation of SSCB in multi bus system.

Keywords


Solid State Circuit Breakers (SSCBs), Reclosers, Gate Turn-Off Thyristor (GTO), Gate Commutated Thyristor (GCT).

References