Scheduled System Maintenance on May 29th, 2015:
IEEE Xplore will be upgraded between 11:00 AM and 10:00 PM EDT. During this time there may be intermittent impact on performance. We apologize for any inconvenience.
By Topic

Power system frequency estimation in the shortened measurement time

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Agrez, D. ; Fac. of Electr. Eng., Ljubljana Univ., Slovenia

An algorithm for fast measurement and estimation of power system frequency is presented. The frequency is calculated by an interpolation of the amplitude coefficients of the discrete Fourier transform. An analysis is made to study the influence of leakage effect and a number of sampling points when the rectangular window and the Hanning window are used. Algorithms are proposed for two cases: the measurement time is an integer multiple of the fundamental period of the power system, and it is below one period. Interpolations with longer time of measurement and with larger number of points decrease the systematic errors. When the time is shortened below the signal period, the DC coefficients are taken into account. If the sinusoidal signal is sampled at 64 samples per measurement interval, the proposed method achieves accuracy in measuring the frequency under a hundreth of Hz

Published in:

Instrumentation and Measurement Technology Conference, 2001. IMTC 2001. Proceedings of the 18th IEEE  (Volume:2 )

Date of Conference: