Power grid broadband oscillation suppression method and system, computer device and storage medium

By monitoring the generation of early warning and alarm information for inter-grid harmonic signals in real time and implementing targeted suppression measures, the problem of effectively suppressing novel sub/supersynchronous oscillations in the power grid has been solved, realizing proactive prevention and control and safety assurance of the power grid.

CN115189368BActive Publication Date: 2025-11-25CHINA ELECTRIC POWER RESEARCH INSTITUTE CO LTD +2
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Patent Information

Application Number
CN202210833636.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-07-15
Publication Date
2025-11-25
Estimated Expiration
2042-07-15

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Abstract

The present application belongs to the field of power system automation, and discloses a power grid broadband oscillation suppression method, system, computer device and storage medium, comprising: acquiring real-time monitoring signals of each harmonic of the power grid, and generating oscillation early warning information or oscillation alarm information according to the real-time monitoring signals; when the oscillation early warning information is generated, obtaining the oscillation early warning type according to the oscillation early warning information, and suppressing the oscillation according to the preset oscillation early warning suppression method corresponding to the oscillation early warning type; when the oscillation alarm information is generated, suppressing the oscillation according to the preset oscillation alarm suppression method. The change from passive response after oscillation to active response is realized, which can not only effectively avoid or reduce the occurrence of oscillation, but also effectively suppress and cut off the oscillation at the initial stage of the occurrence of the oscillation, reduce the propagation and influence range of the oscillation, and can be applied to new energy power plants and power grid dispatching centers at all levels, providing support for oscillation prevention and oscillation suppression, and guaranteeing the safe operation of the power grid.
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Citation Information

Patent Citations

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  • A wide-area real-time monitoring system and method for broadband oscillations in power grids

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