The main goal of this study is introducing a novel fault current limiter based on parallel resonance structure(PRFCL)for high voltage application.During normal mode,the PRFCL reactor is short-circuited via a rectifier...The main goal of this study is introducing a novel fault current limiter based on parallel resonance structure(PRFCL)for high voltage application.During normal mode,the PRFCL reactor is short-circuited via a rectifier bridge DC output voltage and LC resonance tank shows negligible impedance in the line.During a fault,the rectifier bridge switches are turned off,so that the parallel resonance LC tank connects to the line with high impedance.This impedance of the resonance structure can limit the fault current,successfully.It is shown that the suggested PRFCL can act as a breaker and opens the line during the fault period.In order to show the suggested PRFCL abilities,MATLAB software is used to simulate the normal and fault cases.In addition,a scale-down prototype is implemented to confirm the simulation results.The comparative study shows that PRFCL has acceptable performance in normal and current limiting operation modes.展开更多
Almost all of the fault current limiters(FCLs)have a negligible voltage drop during normal operation mode of the power system and show considerable impedance during the fault period.In addition,the most of the FCLs em...Almost all of the fault current limiters(FCLs)have a negligible voltage drop during normal operation mode of the power system and show considerable impedance during the fault period.In addition,the most of the FCLs employ a reactor to limit the fault current,which carrying a DC current and named DC reactor-based FCL(DRFCL)or carrying AC current named AC reactor-based FCL(ARFCL).Here,a novel ARFCL is introduced for radial distribution networks protection.Then,the ARFCL performance on the limitation of the fault current is compared with DRFCL in a simple radial distribution network.The MATLAB software is used to simulate both FCLs performance and their effect on the fault current.The laboratory prototype of the ARFCL is built and tested for the evaluation of the ARFCL performance during normal and fault operation modes.The simulation and experimental results show the superiority of ARFCL to control the fault current,fast,and set the point of common coupling voltage in an acceptable range.展开更多
文摘The main goal of this study is introducing a novel fault current limiter based on parallel resonance structure(PRFCL)for high voltage application.During normal mode,the PRFCL reactor is short-circuited via a rectifier bridge DC output voltage and LC resonance tank shows negligible impedance in the line.During a fault,the rectifier bridge switches are turned off,so that the parallel resonance LC tank connects to the line with high impedance.This impedance of the resonance structure can limit the fault current,successfully.It is shown that the suggested PRFCL can act as a breaker and opens the line during the fault period.In order to show the suggested PRFCL abilities,MATLAB software is used to simulate the normal and fault cases.In addition,a scale-down prototype is implemented to confirm the simulation results.The comparative study shows that PRFCL has acceptable performance in normal and current limiting operation modes.
文摘Almost all of the fault current limiters(FCLs)have a negligible voltage drop during normal operation mode of the power system and show considerable impedance during the fault period.In addition,the most of the FCLs employ a reactor to limit the fault current,which carrying a DC current and named DC reactor-based FCL(DRFCL)or carrying AC current named AC reactor-based FCL(ARFCL).Here,a novel ARFCL is introduced for radial distribution networks protection.Then,the ARFCL performance on the limitation of the fault current is compared with DRFCL in a simple radial distribution network.The MATLAB software is used to simulate both FCLs performance and their effect on the fault current.The laboratory prototype of the ARFCL is built and tested for the evaluation of the ARFCL performance during normal and fault operation modes.The simulation and experimental results show the superiority of ARFCL to control the fault current,fast,and set the point of common coupling voltage in an acceptable range.
