scholarly journals Real-Time Remedial Action Against Aperiodic Small Signal Rotor Angle Instability

2016 ◽  
Vol 31 (1) ◽  
pp. 387-396 ◽  
Author(s):  
Tilman Weckesser ◽  
Hjortur Johannsson ◽  
Jacob Ostergaard
Keyword(s):  
Real Time ◽  
Small Signal ◽  
Remedial Action ◽  
Rotor Angle

scholarly journals Wide-Area Assessment of Aperiodic Small Signal Rotor Angle Stability in Real-Time

2013 ◽  
Vol 28 (4) ◽  
pp. 4545-4557 ◽  
Author(s):  
Hjortur Johannsson ◽  
Arne Hejde Nielsen ◽  
Jacob Ostergaard
Keyword(s):  
Real Time ◽  
Wide Area ◽  
Small Signal ◽  
Angle Stability ◽  
Rotor Angle ◽  
Rotor Angle Stability

scholarly journals Modelling and Simulation for Small Signal Stability of Multi-machine Power System under Various Disturbance Conditions

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Ohnmar Swe
Keyword(s):  
Power System ◽  
Time Domain ◽  
Test System ◽  
Small Signal ◽  
Time Domain Simulation ◽  
Small Signal Stability ◽  
Signal Stability ◽  
Rotor Angle ◽  
Network Fault ◽  
Signal Dynamic

This paper presents the small signal stability of multi-machine power system over the 58-Bus, 26-Machine, Yangon Distribution Network and is validated with MATLAB software under various disturbance conditions. Time-domain solution analysis is employed to determine the small signal dynamic behavior of test system. Transtability model is used to perform time-domain simulation in SIMULINK. The simulation is carried out for normal condition, reference voltage of regulator (Vref) disturbance, mechanical torque (Tm)disturbance and network (fault) disturbance and the conditions of change in center of inertia for rotor angle (delta COI),  slip for center of inertia (slip COI), field current and mechanical torque are observed. According to the simulation results, perturbation of Vref shows only instability on the system. But ramping of Tm and network disturbance can cause large disturbance on the system and unstable conditions can be observed.

PMU-Based Model-Free Approach for Real-Time Rotor Angle Monitoring

2015 ◽  
Vol 30 (5) ◽  
pp. 2818-2819 ◽  
Author(s):  
Sambarta Dasgupta ◽  
Magesh Paramasivam ◽  
Umesh Vaidya ◽  
Venkataramana Ajjarapu
Keyword(s):  
Real Time ◽  
Model Free ◽  
Rotor Angle ◽  
Model Free Approach

Identification of generator criticality and transient instability by supervising real-time rotor angle trajectories employing RBFNN

2018 ◽  
Vol 83 ◽  
pp. 66-88 ◽  
Author(s):  
Bhanu Pratap Soni ◽  
Akash Saxena ◽  
Vikas Gupta ◽  
S.L. Surana
Keyword(s):  
Real Time ◽  
Rotor Angle ◽  
Transient Instability

scholarly journals Detection and Prevention of Aperiodic Small Signal Angle Instability at an Early Stage

2019 ◽  
Vol 8 (3) ◽  
pp. 3504-3508
Keyword(s):  
Early Detection ◽  
Early Stage ◽  
Stable State ◽  
Small Signal ◽  
Double Line ◽  
System Sensitivity ◽  
Ground Fault ◽  
Three Phase ◽  
Rotor Angle ◽  
Early Detection And Prevention

This paper explores the method of early detection and prevention of aperiodic small signal rotor angle (ASD) instability. A criterion for ASD stability detection is tested on a synthetic system. Sensitivity analysis is utilized to seek the node that would have the most influence on the generator undergoing said instability. The assessment of a suggested countermeasure is carried out to determine whether the system will sustain the stable state. Three case studies on the synthetic system, in the form of generator fault, three phase symmetrical fault and double line to ground fault, are also performed to test the method of early detection.

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