Geomagnetic disturbance geoelectric field calculation method based on block geoelectric structure
A technology of geomagnetic disturbance and calculation method, which is applied in calculation, electrostatic field measurement, computer-aided design, etc., can solve the problems of long calculation time, not fully considering the difference of the earth's electrical structure, affecting the speed of GIC accident handling in the power grid, etc. The effect of improving calculation accuracy and calculation speed
Active Publication Date: 2021-07-16
MAINTENANCE BRANCH COMPANY STATE GRID ZHEJIANG ELECTRIC POWER +2
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The previous algorithm based on large-area geomagnetic storm geoelectric field has a large computational workload and long calculation time. It is only suitable for offline analysis of power grid GIC, and is not suitable for online analysis of GIC accident handling in power grid operation scheduling, which affects the speed of power grid GIC accident handling.
[0003] For the algorithm of GMD geoelectric field, the current algorithm based on plane wave theory believes that the geoelect
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[0080] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments. The described embodiments are some, but not all, of the embodiments of the application. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application. The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0081] Utilize the geomagnetic storm geoelectric field calculation method based on the block geoelectric structure proposed by the present invention (that is, the geomagnetic disturbance geoelectric field calculation method based on the block geoelectric structure), and March 13, 1989 and November 9, 2004 Ac...
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The invention belongs to the technical field of crossing of power systems and geophysics, and relates to a geomagnetic disturbance geoelectric field calculation method based on a block geodetic electrical structure, which comprises the following steps: S1, establishing a block geodetic three-dimensional electrical structure model; s2, adopting a geoelectric field algorithm based on a Maxwell equation; s3, calculating a geoelectric field component magnitude of the geomagnetic storm GMD; and s4, determining the maximum value and direction of the geoelectric field component of the geomagnetic storm GMD. According to the method provided by the invention, the ground is partitioned according to the city-level jurisdiction of the provincial power grid, the three-dimensional electrical structure model of the ground is established according to the city-level jurisdiction, the geoelectric field of the geomagnetic storm GMD is calculated, and then the GIC of the power grid of each region is calculated, so that the calculation precision and the calculation speed of the geoelectric field of the geomagnetic storm GMD and the GIC of the power grid are improved.
Description
technical field [0001] The invention belongs to the interdisciplinary technical field of electric power system and geophysics, and relates to a geomagnetic disturbance geoelectric field calculation method based on block geoelectric structure, in particular to a geomagnetic disturbance (geomagnetic disturbance, GMD) of a geomagnetic storm that affects an AC power grid. Electric field calculation method. Background technique [0002] The geomagnetic storm described in the present invention refers to the geomagnetic storm caused by the intense activity of the solar magnetic field. The GMD of the geomagnetic storm induces an electric field on the ground, and the geomagnetic storm induced current (GIC) generated by the electric field in the power grid affects the safe operation of the power grid. Accurate calculation of geoelectric field is the basis for calculating GIC, and then evaluating the impact of GIC on power grid stability and disaster prevention. The previous algorith...
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Login to view more IPC IPC(8): G06F30/18G06T17/00G01R29/12G06F111/02G06F113/04
CPCG06F30/18G06T17/00G01R29/12G06F2111/02G06F2113/04Y02A90/30
Inventor 胡锦根朱贵池沈正元姚晖刘文琳田硕张健李晨楼汉宁刘勋王生祺罗杰龚凌云朱翔宇叶承华陈文强
Owner MAINTENANCE BRANCH COMPANY STATE GRID ZHEJIANG ELECTRIC POWER
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