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Adaptive Subband Compression for Streaming of Continuous Point-on-Wave and PMU Data

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Document pages: 10 pages

Abstract: A data compression system capable of providing real-time streaming ofhigh-resolution continuous point-on-wave (CPOW) and phasor measurement unit(PMU) measurements is proposed. Referred to as adaptive subband compression(ASBC), the proposed technique partitions the signal space into subbands andadaptively compresses subband signals based on each subband s active bandwidth.The proposed technique conforms to existing industry phasor measurementstandards, making it suitable for streaming high-resolution CPOW and PMU dataeither in continuous or burst on-demand event-triggered modes. Experiments onsynthetic and real data show that ASBC reduces the CPOW sampling rates byseveral orders of magnitude for real-time streaming while maintaining theprecision required by industry standards.

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