P. Arpaia et al., REAL-TIME ALGORITHMS FOR ACTIVE POWER MEASUREMENTS ON PWM-BASED ELECTRIC DRIVES, IEEE transactions on instrumentation and measurement, 45(2), 1996, pp. 462-466
Two real-time algorithms for active power measurements on Pulse Width
Modulation (PWM) electric drives are proposed, The former is an off-li
ne algorithm reducing truncation error through an accurate signal peri
od estimation and a proper window, The second is an on-line algorithm
based on a low-pass IIR digital filter with an optimized transient pha
se, Numerical results of the metrological characterization of such alg
orithms, aimed to suggest criteria for their use, are presented, The e
xperimental results of tests carried out on an actual drive confirm nu
merical simulations and are in perfect agreement with those of a well-
acclaimed algorithm.