A method and device for calculating reliability of relay protection
A technology of relay protection and calculation method, applied in electrical components, digital transmission systems, data exchange networks, etc., can solve problems such as inaccurate reliability results of relay protection
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Embodiment 1
[0066] A relay protection reliability calculation method disclosed in Embodiment 1 of the present invention is applied to a relay protection reliability calculation device. The flow chart is as follows figure 1 As shown, the calculation method of relay protection reliability includes:
[0067] S101. Obtain a multi-modal capacity constraint matrix and a probability set of each preset physical element working in each mode according to the historical flow of each preset physical element in the smart substation;
[0068] S102, constructing a random flow network model G=(V, E, C, P) in which the reliable side of the node fails;
[0069] Among them, the node V is the set of physical connection devices of each preset physical element, the edge E is the set of preset physical elements, C is the multimodal capacity constraint matrix, and P is each preset physical element working in each mode set of probabilities;
[0070] In the process of executing step S102, in the process of const...
Embodiment 2
[0076] Based on the above-mentioned multi-modal data representation learning method disclosed in the first embodiment of the present invention, such as figure 1 In the shown step S103, the specific execution process of obtaining the corresponding effective state set W based on the random flow network model G is as follows: figure 2 shown, including:
[0077] S201. Obtain each network state based on the random flow network model G, and generate a state space tree, where each network state is a node of the state space tree;
[0078] In the process of executing step S201, the corresponding state space Ω=(Y 1 ,Y 2 ,...,Y i ,Y m ), and generate a state space tree according to each network state, where each network state Y i is a node of the state space tree.
[0079] S202. Generate a zero network state based on the network state, and use the zero network state as the first parent node of the state space tree;
[0080] In the process of executing step S202, based on the obta...
Embodiment 3
[0099] Based on the above-mentioned relay protection reliability calculation method provided by each embodiment of the present invention, the third embodiment of the present invention discloses a relay protection reliability calculation device that implements the above-mentioned relay protection reliability calculation method, and its structural diagram is as follows Figure 4 As shown, the relay protection reliability calculation device includes 400: an acquisition module 401, a model construction module 402, an effective state set acquisition module 403 and a reliability calculation module 404; wherein,
[0100] The acquisition module 401 is used to acquire the multimodal capacity constraint matrix and the probability set of each preset physical element working in each mode according to the historical flow of each preset physical element in the smart substation;
[0101] The model construction module 402 is used to construct the random flow network model G=(V, E, C, P) of nod...
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