Patent · US Active

Adaptive PMU missing data recovery method

US10983492B1 · kind B1 · utility

2Cited by

0References

1Claims

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Assignee

NORTH CHINA ELECTRICAL POWER UNIVERSITY · CN

Inventors

Hao Liu · Taoyuan, TW
Tianshu Bi · Beijing, CN
Zhiwei Yang · Laishui, CN

Key dates

Filing date	Sep 9, 2020
Grant date	Apr 20, 2021
Priority date	—
Expiry date	Sep 9, 2040

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY04S10/30
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A data recovery method framework is described, in which the data is classified as either ambient or disturbance data, and recovered by different methods to achieve good performance efficiently. An approach based on decision tree is described for identifying ambient and disturbance data. Then, an improved cubic spline interpolation based on the priority allocation strategy is described for ambient data loss, which can quickly and accurately recover ambient data. Simultaneously, a disturbance data recovery method based on singular value decomposition is described. It can achieve disturbance data recovery accurately by a single channel of measurement.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.