Title :
A fast and high-precision measurement of distorted power based on digital filtering techniques
Author_Institution :
Dept. of Electr. Eng., Southeast Univ., Nanjing, China
fDate :
6/1/1992 12:00:00 AM
Abstract :
A rapid high-precision measurement of distorted power is described. The measurement is based on digital filtering techniques. The convergence conditions of two previous sampling algorithms are derived, and their frequency responses are analyzed. An adjustable window used for measuring distorted power is also proposed. It is demonstrated that the sampling algorithm using the window leads to significant savings in measuring and computing time, and high accuracy can be obtained
Keywords :
computerised instrumentation; electric distortion measurement; filtering and prediction theory; power measurement; signal processing; accuracy; computing time; convergence; digital filtering; distorted power; electric distortion; frequency responses; high-precision measurement; sampling algorithms; Convergence; Digital filters; Distortion measurement; Filtering; Frequency response; Power measurement; Sampling methods; Signal sampling; Time measurement; Wattmeters;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
