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SystemofSystems

Guides

  • Guide to ZigangPan`SystemofSystems`

Symbols

  • EZDCFSS
  • interconnectionpropertyQ
  • robustMRACdesignSystemofSystems
  • systemofsystems
ZigangPan`SystemofSystems`
interconnectionpropertyQ
​
interconnectionpropertyQ
[listofSystems]
outputs 'error' if some system in listofSystems is not square LTI with uniform vector relative degree. Otherwise, it returns True if the interconnection property is met or False if not.A system of systems is said to satisfy the Interconnection property if the
listofSystems
={
system
1
,...,
system
p
}
is such that for each
i
,
system
i
has uniform relative degree
r
i
, control input
u
i
and output
y
i
, for each
system
j
,
j≠i
, whose input
u
j
and/or output
y
j
is an input to
system
i
, then the relative degree of
y
i
with respect to each component of
y
j
is greater than
0⋁(
r
i
-
r
j
)
, and the relative degree of
y
i
with respect to each component of
u
j
is greater than
r
i
⋁
r
j
.
​
Examples  
(1)
Basic Examples  
(1)
In[1]:=
system1={{x11,x12,x13,x14,x15},{u11,u12,u21,y31,y32,wg1,wg2,wg3,wg4,wg5,wg6},{y11,y12,z11,z12},​​{{0,1,0,θb11,0,2θb11,θb12,0,θb11,-θb12,0,0,0,0,0,θb11},​​{0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0},​​{0,-θb13,0,0,0,0,0,0,0,0,0,0,0,0,0,0},​​{-1,0,0,-2,1,-θb11,-θb12,0,θb11,θb12,0,0,0,0,0,θb12},​​{0,0,0,-1/2,-1,0,0,1/6*θb12,θb11,-θb12,0,0,0,0,0,θb12},​​{1,0,0,0,0,θb11,θb12,0,0,0,1,0,0,0,0,0},​​{0,0,0,1,0,-θb12,θb11,0,0,0,0,1,0,0,0,0},​​{1,0,0,0,0,θb11,θb12,0,0,0,0,0,0,0,0,0},​​{0,0,0,1,0,-θb12,θb11,0,0,0,0,0,0,0,0,0}},{1,2},{1,2},{1,2},{3,4,5,6,7,8,9,10,11},{1,2},{3,4}}/.{θb111,θb121,θb132};systemcheck[system1]​​
Out[1]=
True
In[2]:=
system2={{x21,x22,x23,x24},{u21,u31,u32,y11,y12,wg1,wg2,wg3,wg4,wg5,wg6},{y21,z21},​​{{-θb21,1,0,0,θb21,0,0,0,0,0,0,0,0,0,θb21},​​{-θb21,0,1,0,3θb21,0,0,θb21,θb22,0,0,0,0,0,3θb21},{-θb22,0,0,1,3θb21,-θb22,θb21,-θb22,θb21,0,0,0,0,0,3θb21},{θb22,0,0,0,θb21,θb21,θb22,θb21,θb22,0,0,0,0,0,-θb21},{1,0,0,0,0,0,0,0,0,0,0,1,0,0,0},{1,0,0,0,0,0,0,0,0,0,0,0,0,0,0}},{1},{1},{1},{2,3,4,5,6,7,8,9,10,11},{1},{2}}/.{θb211,θb223/2};systemcheck[system2]
Out[2]=
True
In[3]:=
system3={{x31,x32,x33,x34,x35,x36},{u31,u32,u11,u12,y21,wg1,wg2,wg3,wg4,wg5,wg6},{y31,y32,z31,z32},​​{{1+θb31,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1+θb33},​​{1+θb31,-1+θb32,0,1,0,0,0,0,0,0,0,0,0,0,0,0,1+θb34},​​{1-θb32,-1+θb31,0,0,1,0,1+θb33,1+θb34,0,0,1+θb31,0,0,0,0,0,1+θb31},​​{1+θb33,1+θb34,0,0,0,1,-1-θb34,1+θb33,0,0,-1-θb32,0,0,0,0,0,-1-θb32},​​{1-θb34,0,0,0,-1,1,0,0,1+θb33,0,1+θb34,0,0,0,0,0,1-θb34},​​{0,-1+θb33,0,0,-1,-1,0,0,0,1+θb34,0,0,0,0,0,0,-1+θb33},​​{1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0},​​{0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0},​​{1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},​​{0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}},{1,2},{1,2},{1,2},{3,4,5,6,7,8,9,10,11},{1,2},{3,4}}/.{θb311,θb321/2,θb333/2,θb341};systemcheck[system3]
Out[3]=
True
In[4]:=
interconnectionpropertyQ
[{system1,system2,system3}]
Out[4]=
True
SeeAlso
systemofsystems
 
▪
EZDCFSS
 
▪
robustMRACdesignSystemofSystems
RelatedGuides
▪
Guide to ZigangPan`SystemofSystems`
""

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