A feature extraction and clustering analysis method for a transient stability result of a power system
A feature extraction and transient stability technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of slow network convergence, loose connection between different parameters, low normalization degree, etc. The interference performance is good, and the effect of avoiding the weakening of the data clustering effect
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[0060] A method for feature extraction and cluster analysis of power system transient stability results, such as figure 1 shown, including the following steps:
[0061] Step 1: Perform normalized preprocessing on the transiently stable feature data in order to cluster the data. The normalized feature data preprocessing adopts the joint normalization method, and the column vector and the row vector are normalized by the most value method successively. It makes the connection between system data more closely and has better adaptability to system disturbance.
[0062] Data set S = {x 1 ,x 2 ,...x N} is a set containing N sample objects, and each sample object x in S ij ={x i1 ,x i2 ,...,x iτ}(i=1,2,...,N,j=1,2,...,τ) contains τ dimensions, where x ij represents the sample object x i The value of the j-th dimension attribute of , can constitute a (τ×N) sample matrix. The column vector and row vector are normalized successively with the most value method:
[0063] (1) C...
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