An emergency blocking method for cascading faults based on fault chain model
A cascading failure and accident chain technology, applied in emergency treatment of AC circuit layout, AC network circuit, electrical components, etc., can solve problems such as cascading failure, disturbance, missed control timing, etc., to reduce losses, avoid missed control timing, improve The effect of blocking ability
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[0032] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0033] Such as figure 1 Shown, the cascading failure emergency blocking method based on the accident chain model of the present invention may further comprise the steps:
[0034]Step 1. Based on the data of different operation modes of the actual power grid, determine the initial fault set according to expert experience, and use the electromechanical transient time domain simulation method to search for the high-risk cascading fault accident chain set L={L 1 , L 2 ,...,L u}, the specific process is as follows:
[0035] 1-1) Assuming that there is a running mode in the running mode set and b events in the initial event set, all combinations are calculated starting from the first running mode ...
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