Simulation method and device for cascading failures of power grid

A technology of cascading faults and simulation methods, which is applied in the direction of circuit devices, design optimization/simulation, electrical components, etc., can solve the problems of heavy power grid cascading fault simulation workload, and achieve fast, efficient and comprehensive power grid cascading fault simulation and solve workload big effect

Active Publication Date: 2017-05-10
STATE GRID BEIJING ELECTRIC POWER +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] Embodiments of the present invention provide a method and device for simulating cascading faults in power grids, so as to at least solve the technical problem of large workload in the simulation of cascading faults in power grids

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  • Simulation method and device for cascading failures of power grid
  • Simulation method and device for cascading failures of power grid
  • Simulation method and device for cascading failures of power grid

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Embodiment Construction

[0024] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0025] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a simulation method and device for cascading failures of a power grid. The method comprises the steps of carrying out stability analysis on the power grid and determining a key failure component in the power grid; generating a cascading failure sequence of the power grid on the basis of the key failure component; carrying out dynamic simulation for a whole process on the basis of the cascading failure sequence; and determining the state of the power grid after the cascading failures through a simulation result. According to the simulation method and device, the technical problem of high workload of cascading failure simulation of the power grid is solved.

Description

technical field [0001] The invention relates to the field of power systems, in particular to a simulation method and device for grid cascading failures. Background technique [0002] Cascading failures will lead to major blackouts. These major blackouts are often caused by the failure of a certain component in the system, causing or accompanying the outage of other related components, resulting in damage to the stability of the system, resulting in the rapid spread of local cascading failures, and eventually A grid collapse occurs. Although the probability of such accidents is small, the harm is great. [0003] In order to solve this problem, there are usually two methods in the prior art: one is to selectively simulate individual faults based on experience, which is not systematic and the coverage of cascading faults is not complete; According to the method mentioned above, the vast majority of faults belong to the faults that are unlikely to occur and cause little damage...

Claims

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Application Information

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IPC IPC(8): H02J3/00G06F17/50
CPCG06F30/20H02J3/00H02J2203/20Y02E60/00
Inventor 孙健
Owner STATE GRID BEIJING ELECTRIC POWER
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