Test for Non-Synchronized Errors of State Estimation Using Real Data

doi:10.1109/TPWRS.2022.3161118

Test for Non-Synchronized Errors of State Estimation Using Real Data

2022-07-01

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DOI：10.1109/TPWRS.2022.3161118

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This letter discusses performance degradation of traditional supervisory control and data acquisition (SCADA)-based static state estimation (SSE) caused by violation of the static assumption. The sensitivity of non-synchronized sampling errors against oscillations is tested through real measurement data and grid model from a subsystem of the North American power gird. The test results show that as an important reason leading to the failure of SCADA-based SSE, the non-synchronized sampling error of SCADA is sensitive to oscillations in that the error rapidly increases when oscillations occur and vanishes when the oscillations cease.

Keywords:

Oscillators

Measurement uncertainty

Time measurement

Degradation

Pollution measurement

Energy management

Power system dynamics

SSE performance degradation

non-synchronized sampling error

static assumption violation

Test for Non-Synchronized Errors of State Estimation Using Real Data

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