Power quality monitoring apparatus for railway power system

A power quality monitoring apparatus for a railway power system is provided. In the apparatus, energy flow and the amount of power are calculated and recorded using voltage and current sensors at AC and DC power source sides in various industrial fields, voltage and current phases are detected in th...

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Bibliographische Detailangaben
Hauptverfasser:	PYO, SE-WAN, KWON, KYOUNG-MIN, SON, KYOUNG-MIN, LEE, EUN-KYU, KIM, TAE-SUK
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	A power quality monitoring apparatus for a railway power system is provided. In the apparatus, energy flow and the amount of power are calculated and recorded using voltage and current sensors at AC and DC power source sides in various industrial fields, voltage and current phases are detected in the case of AC power, the direction of current is detected to calculate power consumption in the case of DC power, and stored data is analyzed. It is possible to monitor changes in voltage and current values of trains, which are loads, and AC lines to output the changes in the voltage and current values, power consumption, and power flow in a graphical or text format, thereby making it possible to easily determine overall overhead line environments.