Title :
A Reply to Comments on “New Algorithm for Measuring 50/60 Hz AC Values Based on the Usage of Slow A/D Converters” and “Measuring of Slowly Changing AC Signals Without Sample-and-Hold Circuit”
Author :
Petrovic, P. ; Stevanovic, Matija
Abstract :
This reply comments on the results and conclusions of the above paper. The authors analyze the proposed numerical method (the trapezoidal rule) for numerical integration as well as the possible sources of error in this type of processing, and derive analytical expression for them. In addition, the authors provide comments on the principle of signal reconstruction proposed in the above paper and show that the postprocessing operation is not necessary. It has been presented that no doubts exist in the experimental results given in the commented papers, with an accuracy of 0.01%
Keywords :
analogue-digital conversion; sample and hold circuits; signal reconstruction; A/D converters; AC signals; analytical expression; electric variable measurement; numerical integration; numerical method; power system measurement; sample-and-hold circuit; signal reconstruction; synchronous sampling; trapezoidal rule; Circuit testing; Electric variables measurement; Input variables; Power industry; Power measurement; Power system harmonics; Power system measurements; Sampling methods; Signal processing; Signal reconstruction; Electric variable measurement; power system measurement; sample-and-hold (S/H) circuits; signal reconstruction; synchronous sampling method;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2006.880272
