A transient simulation analysis and decision method, device and equipment for power grid harmonic oscillation
By combining an offline electromagnetic transient simulation model with the power grid topology, and utilizing hierarchical directed acyclic graphs and resource reallocation techniques, an online electromagnetic simulation model was constructed. This solved the problem of simulating harmonic oscillations in large power grids and enabled effective analysis and suppression decisions for harmonic oscillations.
CN115186891BActive Publication Date: 2026-05-29ELECTRIC POWER RES INST CHINA SOUTHERN POWER GRID CO LTD +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ELECTRIC POWER RES INST CHINA SOUTHERN POWER GRID CO LTD
- Filing Date
- 2022-07-08
- Publication Date
- 2026-05-29
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Figure CN115186891B_ABST
Abstract
The present application relates to the technical field of power system stability control simulation analysis, and provides a transient simulation analysis and decision method, device and equipment for power grid harmonic oscillation, which comprises the following steps: combining the model and model parameters of electromagnetic transient offline simulation with the topology of the power grid to be analyzed to obtain an electromagnetic transient example, and then describing the calculation process of electromagnetic transient with a hierarchical directed acyclic graph, and taking each calculation model with redistributed resources as the electromagnetic transient algorithm; performing risk analysis on the harmonic oscillation condition according to the simulation result, and making an optimized decision on the harmonic oscillation suppression measures; through example design and electromagnetic transient algorithm design, an electromagnetic online simulation model is constructed to meet the simulation requirements of large power grids and realize the analysis and suppression decision of harmonic oscillation.
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