What question did this study set out to answer?

To develop an effective data compression technique for power system disturbance signals using discrete wavelet transforms optimized via the minimum description length criterion.

April 1, 2002IEEE Transactions on Power Delivery

Wavelet-based data compression of power system disturbances using the minimum description length criterion

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Authors

EHEffrina Yanti HamidBandung Institute of Technology ZKZen‐Ichiro KawasakiKindai University Hospital

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Implication

Experimental evaluation demonstrates efficient compression of power disturbance signals using wavelet transforms and minimum description length, indicating improved remote power quality monitoring.

Key Points

To develop an effective data compression technique for power system disturbance signals using discrete wavelet transforms optimized via the minimum description length criterion.
Decomposed power disturbance signals using discrete wavelet transform (DWT) and wavelet packet transform (WPT) followed by coefficient thresholding and reconstruction.
Applied the minimum description length (MDL) criterion to objectively select the optimal wavelet filter and determine the ideal number of retained coefficients.
Evaluated compression performance using experimental data from a single-phase-to-ground fault event, both independently and combined with secondary lossless coding.
The MDL criterion successfully identified suitable wavelet filters while determining the optimal number of coefficients needed for high-quality signal reconstruction.
Wavelet compression using the selected filter achieved data compression ratios of less than 11% for single-phase-to-ground fault events.
Implementing an additional lossless coding step further reduced the compression ratios by more than 50%.

Cite This Study

Hamid et al. (2002) studied this question.

synapsesocial.com/papers/6a74c327f1e99ff85ab1cbfb https://doi.org/10.1109/61.997918

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Implication

Experimental evaluation demonstrates efficient compression of power disturbance signals using wavelet transforms and minimum description length, indicating improved remote power quality monitoring.

Wavelet-based data compression of power system disturbances using the minimum description length criterion

Discussion

Member takes

Implication

Key Points

Cite This Study

Wavelet-based data compression of power system disturbances using the minimum description length criterion

Discussion

Member takes

Implication

Key Points

Cite This Study

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