Fourier based three phase power metering system

Citation data:

Proceedings of the 17th IEEE Instrumentation and Measurement Technology Conference [Cat. No. 00CH37066], Page: 30-35

Publication Year:
2000
Usage 11
Downloads 10
Abstract Views 1
Citations 3
Citation Indexes 3
Repository URL:
http://scholarsmine.mst.edu/ele_comeng_facwork/1052
DOI:
10.1109/imtc.2000.846807
Author(s):
Smith, Scott C.; Devaney, M. J.
Publisher(s):
Institute of Electrical and Electronics Engineers (IEEE)
Tags:
CISC Processor; DSP; FFT; RISC Processor; Analogue-Digital Conversion; Computerised Monitoring; Digital Signal Processing Chips; Distorted Industrial Power System Waveforms; Distortion Power; Electric Current Measurement; Electronic Fluorescent Ballasts; Fast Fourier Transforms; Floating Point Summary Data; Higher Frequency Nonlinear Loads; Higher Speed Adjustable Drives; Microcontroller; Microcontrollers; Multiprocessor Chip; Power Engineering Computing; Power Meters; Power System Harmonics; Power System Measurement; Reactive Power; Real Power; Reduced Instruction Set Computing; Three Phase Power Metering System; Three-Element Power Meter; Voltage Measurement; Wave Analysers; Zero-Blind; CISC Processor; DSP; FFT; RISC Processor; Analogue-Digital Conversion; Computerised Monitoring; Digital Signal Processing Chips; Distorted Industrial Power System Waveforms; Distortion Power; Electric Current Measurement; Electronic Fluorescent Ballasts; Fast Fourier Transforms; Floating Point Summary Data; Higher Frequency Nonlinear Loads; Higher Speed Adjustable Drives; Microcontroller; Microcontrollers; Multiprocessor Chip; Power Engineering Computing; Power Meters; Power System Harmonics; Power System Measurement; Reactive Power; Real Power; Reduced Instruction Set Computing; Three Phase Power Metering System; Three-Element Power Meter; Voltage Measurement; Wave Analysers; Zero-Blind; Electrical and Computer Engineering
conference paper description
The increased application of higher frequency nonlinear loads, such as electronic fluorescent ballasts and higher speed adjustable drives, has resulted in the need to monitor the higher power system harmonics which were largely ignored in earlier power monitors. Addressing this need requires a meter with substantially higher sample rate and greater computational power. This paper describes a zero-blind, three-phase, three-element power meter that samples three voltages and four currents at 256 points per cycle. The instrument relies on the FFT to compute real and reactive power at each harmonic and reports total real, reactive, and distortion power on each phase. The innovative design is based on a multiprocessor chip which incorporates a DSP for acquisition and point metering, a CISC processor for floating point summary data, and a RISC processor for interface to support communications with the host PC. The paper concludes with a system evaluation on highly distorted industrial power system waveforms.