Fault diagnosis method based on nested iterative Fisher discriminant analysis
A Fisher discrimination and fault diagnosis technology, applied in instruments, electrical testing/monitoring, control/regulating systems, etc., can solve the problem of inability to decompose and extract potential information of process data, no research reports, and singularity of intra-class scatter matrix, etc. question
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[0065] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific examples.
[0066] Taking the Tennessee-Eastman process as an example, the Tennessee-Eastman process is a typical complex chemical production process. The process consists of five main operating mechanisms, namely reactor, product condenser, vapor-liquid separator, circulation Compressor and product stripper. During the whole process, two parts of process variables can be collected: 41 measured variables and 11 manipulated variables. Variables are shown in Tables 1 and 2.
[0067] Table 1 Tennessee-Eastman Process Measurement Variables Table
[0068] serial number
variable name
serial number
variable name
serial number
variable name
1
A component feed flow
2
D component feed flow
3
E component feed flow
4
A and C component feed flow
5
circulation flow
6
Reactor feed...
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