What is it about?
This paper proposes a new method for detection of bad measurement areas and identification of individual bad measurements within measurement areas. The paper proposes newly developed decoupled Chi-squares to detect bad areas and bad individual phases within the area. The bad data identification detects multiple bad measurements using the newly developed whitened residuals calculated by applying of whitening (sphering) transformationon the measurement residuals.
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Why is it important?
The proposed method is developed with consideration of characteristic of each distribution network, such as domination of pseudo measurements against real-time measurements and strong correlation of measurement residuals within single phase of single measurement area. For the first time, the research presented the gaps of traditional bad analysis methods for application in distribution networks, and proposed methodology to overcome these gaps.
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This page is a summary of: Bad Area Detection and Whitening Transformation-based Identification in Three-Phase Distribution State Estimation , IET Generation Transmission & Distribution, April 2017, the Institution of Engineering and Technology (the IET),
DOI: 10.1049/iet-gtd.2016.1866.
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