Power System Fault Chain Simulation Model Considering the Effect of Geomagnetic Storm
Power System Fault Chain Simulation Model Considering the Effect of Geomagnetic Storm
- Author(s): Xiaoning Kang ; Yini Xu ; Yagang Zhang
- DOI: 10.1049/cp.2019.0268
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- Author(s): Xiaoning Kang ; Yini Xu ; Yagang Zhang Source: 8th Renewable Power Generation Conference (RPG 2019), 2019 page (6 pp.)
- Conference: 8th Renewable Power Generation Conference (RPG 2019)
- DOI: 10.1049/cp.2019.0268
- ISBN: 978-1-83953-125-5
- Location: Shanghai, China
- Conference date: 24-25 Oct. 2019
- Format: PDF
In the condition of strong geomagnetic storm, geomagnetically induced current (GIC) flowing through the neutral point of the transformer, causing the increase of reactive power loss, which leads to overload of the reactive power compensation devices, drop of the bus voltage and occurrence of a chain fault, which in turn causes a blackout. Comparing the characteristics of each link in the fault chain and the development law of the blackout caused by geomagnetic storms, the fault chain model is used to simulate the process of power outage under conditions of geomagnetic storm. The paper determines the propagation path of cascading failures based on the self-organizing critical theory and the safety margin of non-faulty circuits. Combining with IEEE-RTS 79 system parameters, the geo-location of each bus is estimated. Simulating by PowerWorld software, the research results verify that the proposed model can reflect the geomagnetic storm parameters against the power system fault chains and the identification of weak links under given grid conditions. The research results can provide basis for quantifying and preventing geomagnetic storm grid disasters.
Inspec keywords: reactive power; power system simulation; power grids; power system faults; failure analysis; magnetic storms; power system reliability; power transmission faults
Subjects: Control of electric power systems; Reliability; Power system management, operation and economics; Other topics in statistics
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