Title :
A virtual instrument for the measurement of voltage unbalance in power systems
Author :
Barros, Julio ; Diego, Ramon I. ; De Apraiz, Matilde
Author_Institution :
Dept. Electron. & Comput., Univ. of Cantabria, Santander
Abstract :
This paper presents the structure and the performance of a low-cost VI-based measurement instrument for assessment of voltage unbalance in a low-voltage distribution system. The system enables the continuous monitoring of the magnitude of the three phase-to-phase voltages and the voltage unbalance factor, as well as their statistical analysis. The instrument developed can be used as a protection scheme in a distribution system, especially in industrial systems where three-phase induction motors can be drastically affected when under continuous operation with high voltage unbalance magnitude.
Keywords :
induction motors; power distribution protection; power system measurement; statistical analysis; virtual instrumentation; voltage measurement; low-cost VI-based measurement instrument; low-voltage distribution system; phase-to-phase voltages; power systems; protection scheme; statistical analysis; three-phase induction motors; virtual instrument; voltage unbalance factor; Distributed computing; Electric variables measurement; Impedance; Induction motors; Instruments; Monitoring; Power measurement; Power system measurements; Power systems; Voltage measurement;
Conference_Titel :
Electrical Machines, 2008. ICEM 2008. 18th International Conference on
Conference_Location :
Vilamoura
Print_ISBN :
978-1-4244-1735-3
Electronic_ISBN :
978-1-4244-1736-0
DOI :
10.1109/ICELMACH.2008.4800050
