Title :
Use of integrative analog-to-digital converters for high-precision measurement of electrical power
Author :
Pogliano, Umberto
Author_Institution :
Ist. Elettrotecnico Nazionale Galileo Ferraris, Torino, Italy
fDate :
10/1/2001 12:00:00 AM
Abstract :
A new method for the precise measurement of electrical power at the primary level, which utilizes two synchronized integrating analog-to-digital converters (IADCs), has been developed. The parameters of voltage and current are computed from the acquired samples by means of a proper procedure and with suitable corrective terms. The uncertainties are significantly reduced and the measurement of power at power frequencies can be performed with high precision, even when the power factor approaches zero
Keywords :
analogue-digital conversion; integrating circuits; parameter estimation; power measurement; power system measurement; signal reconstruction; signal sampling; wattmeters; high-precision power measurement; integrative analog-to-digital converters; parameter estimation; power system measurement; reduced uncertainties; signal reconstruction; software program; synchronized integrating converters; wattmeters; Analog-digital conversion; Circuits; Electric variables measurement; Frequency measurement; Performance evaluation; Power measurement; Sampling methods; Signal resolution; Voltage; Wattmeters;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
