Close-Operation Overvoltage of No-Load Transmission Line with Fault Current Limiter

2014 ◽  
Vol 672-674 ◽  
pp. 1373-1379
Author(s):  
Hong Shun Liu ◽  
Ting Ting Lv ◽  
Ming Ming Han ◽  
Liang Zou ◽  
Li Zhang ◽  
...  
Keyword(s):  
Transmission Line ◽  
Oscillation Period ◽  
Fault Current ◽  
Fault Current Limiter ◽  
Fundamental Component ◽  
Load Transmission ◽  
Series Resonance ◽  
Load Line ◽  
Current Limiter ◽  
Component Amplitude

The comprehensive impacts of series resonance type fault current limiter (FCL) on power system need further investigation and verification. With regard to switching on 500kV EHV no-load transmission line, the instantaneous peak value, the free component oscillation frequency, the fundamental component amplitude and free component amplitude of terminal overvoltage waveform are simulated with and without installation of FCL considering different switching times. The relationship curves of free component oscillation period, the fundamental component amplitude and free component amplitude are gotten respectively by simulation results. The law of the influence of different fault current limiting reactance on terminal voltage of switching on no-load line is also summarized. The analysis results show that the installation of FCL is benefit for switching on no-load line.

scholarly journals Fault Analyzer Circuit Analysis at the Load Line in Hybrid Solar/Wind System

2020 ◽  
Vol 6 (11) ◽  
pp. 28-38
Author(s):  
Pankaj Mohan Nautiyal ◽  
Mr. Rohit Kumar Verma
Keyword(s):  
Power Systems ◽  
Electric Power ◽  
Short Interval ◽  
Operating Time ◽  
Test System ◽  
Operating Conditions ◽  
Fault Current ◽  
Fault Current Limiter ◽  
Load Line ◽  
Current Limiter

Electric power is generated, transmitted, and distributed via large interconnected power systems. The generation of electric power takes place in a power plant. The main objective reduces the operating time of fault current removal from the load line and senses the fault current quickly to overcome its effects. The system is to be made effective and efficient while dealing with the fault situation, fault removal, and restoration of the normal operating conditions at the loading points. The results conclude the effectiveness of the proposed T-ACO-based Optimization control for the operation of the relay in accordance with the fault current limiter and analyzer circuit. The second model of the hybrid system concludes that the system having fault current limiter and analyzer circuit reduces and fault current rise and prevents the voltage from dropping to zero even if no AI-based technique is used and the operating time remains the same. The AI-based techniques further reduce the operating time also thereby making the system more efficient as the voltage is restored to its normal value in a short interval of time when the test system is simulated for 1 second in a MATLAB/SIMULINK environment.

Sign in / Sign up

Export Citation Format

Share Document