Fault diagnosis method for power grid based on improved Bayesian Petri net
A technology of power grid fault and diagnosis method, which is applied in the field of power transmission and distribution
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[0069] The present invention proposes an improved Bayesian Petri net (temporalassociation Bayesian Petri net, TABPN) model that considers quantitative temporal association rules, combines the Petri net with the Bayesian network, and introduces temporal association rules (temporal association rules, TAR), From a quantitative point of view, describe the timing relationship and logic rules between various warehouses. Under the condition of incomplete fault information, use the protection action rules to reason about the timing constraint relationship of alarm information, and give the identification of the loss of alarm information. , breakpoint and false alarm algorithm, and further combined with Bayesian network to quickly and accurately locate faulty components.
[0070] Definition 1: An improved Bayesian Petri net model (TABPN) model containing quantitative time series association rules is defined as a nine-tuple:
[0071] ∑ TABPN =(P,T,F,W,M 0 ,α,f,Δu,T AR )
[0072] In ...
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