Digital multirate algorithms for measurement of voltage, current, power and flicker

Journal Article · Sun Jan 01 04:00:00 EST 1995 · IEEE Transactions on Power Delivery

DOI:https://doi.org/10.1109/61.368407· OSTI ID:39974

Toivonen, L; Moersky, J ^[1]

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1. Helsinki Univ. of Technology, Espoo (Finland). Dept. of Electrical Engineering

Digital multirate processing, i.e., signal processing that involves more than one sample rate, permits computationally efficient estimation of several electrical quantities. The new multirate algorithms for active power, voltage and current do not require periodicity of the input signals or synchronous sampling and give excellent accuracy. They replace the integration or summation of conventional methods with digital low pass filtering, implemented very efficiently in a decimator. A multirate flickermeter algorithm is also introduced, completed with a novel method which allows the evaluation of individual flicker sources of the power system while other sources remain active.

• OSTI ID: 39974
• Report Number(s): CONF-9404175--
• Journal Information: IEEE Transactions on Power Delivery, Journal Name: IEEE Transactions on Power Delivery Journal Issue: 1 Vol. 10; ISSN 0885-8977; ISSN ITPDE5
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
ALTERNATING CURRENT
ELECTRIC FILTERS
ELECTRIC POTENTIAL
ELECTRIC POWER
ELECTRICAL TRANSIENTS
MEASURING METHODS