Comparison of short-circuit current calculations in DC shipboard power system for Fuse protection designing

2021 ◽  
Vol 199 ◽  
pp. 107353
Author(s):  
J.J. Deroualle ◽  
D. Pescatori ◽  
A. Dellacasa ◽  
C. Davico
Keyword(s):  
Power System ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Shipboard Power System ◽  
Shipboard Power

Shipboard Power System Stabilizer Optimization Using GA and QPSO Algorithm

2017 ◽  
Vol 16 (03) ◽  
pp. 1750015 ◽  
Author(s):  
Wei Zhang ◽  
Weifeng Shi ◽  
Jinbao Zhuo
Keyword(s):  
Diesel Engine ◽  
Power System ◽  
Short Circuit ◽  
Dynamic Performance ◽  
Particle Swarm ◽  
Optimization Method ◽  
Power System Stabilizer ◽  
Shipboard Power System ◽  
Shipboard Power ◽  
System Stabilizer

In order to improve shipboard power system dynamic stability, two bio-inspired algorithms, the genetic algorithm (GA) and quantum-behaved particle swarm optimization (QPSO), method are proposed for the shipboard power system stabilizer (PSS) optimization. The proposed PSS optimization method is inspired by a hybrid-coordinated stabilizer for diesel engine generator and the bio-inspired algorithm. The simulations are conducted under load change disturbance and short-circuit fault case for the marine generator with/without the diesel engine speed governor. Simulation results show that the quantum particle swarm optimize strategy could improve the dynamic performance of the marine generator better than the GA method. The dynamic performance for shipboard power system always indicates the effectiveness, feasibility and robustness of the proposed approach.

Multi Agent System Approach for Shipboard Power System Reconfiguration

2009 ◽  
Vol 2 (4) ◽  
pp. 61-70
Author(s):  
Ravi Babu Pallikonda ◽  
◽  
K. Prapoorna ◽  
N.V. Prashanth ◽  
A. Shruti ◽  
...  
Keyword(s):  
Power System ◽  
System Approach ◽  
Multi Agent System ◽  
Agent System ◽  
System Reconfiguration ◽  
Shipboard Power System ◽  
Shipboard Power ◽  
Multi Agent

Protection Coordination of 33/11 kV Power Distribution Substation in Iraq

2021 ◽  
Vol 39 (5A) ◽  
pp. 723-737
Author(s):  
Yamur M. Obied ◽  
Thamir M. Abdul Wahhab
Keyword(s):  
Time Delay ◽  
Power System ◽  
Power Distribution ◽  
Software Package ◽  
Short Circuit ◽  
Distribution Network ◽  
Circuit Breaker ◽  
Short Circuit Current ◽  
Earth Fault ◽  
Current Characteristics

The coordination between protective devices is the process of determining the most appropriate timing of power interruption during abnormal conditions in the power system. The aim of this work is to coordinate the protection of the 33/11 kV power distribution substation in Iraq using the CYME 7.1 software package. In this paper overcurrent and earth fault relays are simulated in two cases, with time delay setting and instantaneous setting, to obtain the Time Current Characteristics (TCC) curves for each Circuit Breaker (CB) relay of Al-Karama substation (2×31.5 MVA, 33/11 kV) in Babil distribution network. The short circuit current at each CB is calculated and accordingly, the protection coordination for Al-Karama substation has been simulated. The TCC curves have been obtained in two cases for overcurrent and earth fault relays; in a case with time delay setting and in the case with the instantaneous setting. The setting takes into consideration the short circuit current at the furthest point of the longest outgoing feeder and the shortest outgoing feeder.

System study of fault current limiter for shipboard power system

2009 ◽  
Author(s):  
Bart Diaz ◽  
Thomas H. Ortmeyer ◽  
Bruce Pilvelait ◽  
Mike Izenson ◽  
Weibo Chen ◽  
...  
Keyword(s):  
Power System ◽  
Fault Current ◽  
Fault Current Limiter ◽  
System Study ◽  
Shipboard Power System ◽  
Shipboard Power ◽  
Current Limiter
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