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| conicity |
compute the conicity stabity criterium
Syntax
conicity(plant,range,params,controller)
conicity(plant,range,controller)
Description
conicity(plant,range,params,controller)
coputes the conicity stability criterium
for the plant plant in the range specified
by the array range with the static controller
controller.
Remarks
This method is applicable only if the plant system is has single takagi sugeno mapping for all the outputs or it is a linear one. In addition the controller must be a static one. The outputs of the function are: CONICITY INDEX = CONIC DESVIATION / CONIC ROBUSTNESS CONIC DEVIATION = GAIN(CONTROLLER - CENTRE) CONIC ROBUSTNESS = 1 / GAIN(FEEDB((A,B,C,D),CENTRE) wherecentre is the center of the cone which
is calculated with the method specified in the field
search_method of the params structure.
Possible values for this field are:
linearization which uses a linarization technique for finding
the center of the cone
search_method is specified the linearization
techique is used.