TY - GEN
T1 - A supervisory approach towards cyber-secure generator protection
AU - Kavasseri, Rajesh G.
AU - Cui, Yinan
AU - Chaudhuri, Nilanjan Ray
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/10/25
Y1 - 2016/10/25
N2 - Modern microprocessor-based relays can be vulnerable to attacks from sophisticated cyber-adversaries. In the case of synchronous generators, specifically, out of step (OOS) protection, we show that a 'hacked' relay can be made to respond exactly contrary to design, which can be disastrous to system operation. We propose a computational alternative - using the concept of Dynamic State Estimation (DSE) and inputs from Phasor Measurement Units to address this problem. Since DSE does not rely on the 'settings' used in traditional relays, it can be used to independently supervise the operation of the traditional relay. The generator's dynamic states are continuously tracked and monitored using the DSE module during steady state conditions and the dynamics following a fault. We show that this approach can detect OOS conditions consistent with traditional schemes, thus supervising conventional protection and help detection of anomalous behavior from a compromised relay. Dynamic simulation results are presented on the IEEE 10 machine, 39-bus system to illustrate the proposed approach.
AB - Modern microprocessor-based relays can be vulnerable to attacks from sophisticated cyber-adversaries. In the case of synchronous generators, specifically, out of step (OOS) protection, we show that a 'hacked' relay can be made to respond exactly contrary to design, which can be disastrous to system operation. We propose a computational alternative - using the concept of Dynamic State Estimation (DSE) and inputs from Phasor Measurement Units to address this problem. Since DSE does not rely on the 'settings' used in traditional relays, it can be used to independently supervise the operation of the traditional relay. The generator's dynamic states are continuously tracked and monitored using the DSE module during steady state conditions and the dynamics following a fault. We show that this approach can detect OOS conditions consistent with traditional schemes, thus supervising conventional protection and help detection of anomalous behavior from a compromised relay. Dynamic simulation results are presented on the IEEE 10 machine, 39-bus system to illustrate the proposed approach.
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U2 - 10.1109/CPSRSG.2016.7684099
DO - 10.1109/CPSRSG.2016.7684099
M3 - Conference contribution
AN - SCOPUS:84998679071
T3 - IEEE Proceedings of the 2016 Joint Workshop on Cyber-Physical Security and Resilience in Smart Grids, CPSR-SG 2016 - This Workshop is Part of the CPS Week 2016
BT - IEEE Proceedings of the 2016 Joint Workshop on Cyber-Physical Security and Resilience in Smart Grids, CPSR-SG 2016 - This Workshop is Part of the CPS Week 2016
A2 - Kosek, Anna Magdalena
A2 - Smith, Paul
A2 - Wolthuis, Reinder
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2016 IEEE Joint Workshop on Cyber-Physical Security and Resilience in Smart Grids, CPSR-SG 2016
Y2 - 12 April 2016
ER -