A measurement-based approach for powersystem instability early warning

Feifei Bai; Yong Liu; Yilu Liu; Kai Sun; Navin Bhatt; Alberto Del Rosso; Evangelos Farantatos; Xiaoru Wang

doi:10.1186/s41601-016-0014-0

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A measurement-based approach for powersystem instability early warning

Contents | 更新时间：2026-06-25

- A measurement-based approach for powersystem instability early warning
- Protection and Control of Modern Power Systems Vol. 1, Issue 1, (2016)
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- DOI：10.1186/s41601-016-0014-0
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- Published：2016
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Feifei Bai, Yong Liu, Yilu Liu, et al. A measurement-based approach for powersystem instability early warning[J]. Protection and Control of Modern Power Systems, 2016, 1(1).
DOI：

Feifei Bai, Yong Liu, Yilu Liu, et al. A measurement-based approach for powersystem instability early warning[J]. Protection and Control of Modern Power Systems, 2016, 1(1). DOI： 10.1186/s41601-016-0014-0.

摘要

Early warning of impending instability in a power system under disturbance conditions is important for preventing of system collapse. A measurement-based approach is proposed to assess the potential power system transient instability problem under cascading outages. Where a measurement-based index is obtained as the estimation accuracy of a linear autoregressive exogenous (ARX) model to estimate the dynamic response of the power system and indicate the system stability to some extent after a disturbance. The proposed approach was verified using a set of marginally stable cases in a 179-bus WECC equivalent power system. Then the instability early warning threshold for this system is obtained as 0.44.

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