Internal Model Principle 1.
Internal Model Principle 1. v G c ( z ) = S c G ( z ) = B r e u y R c A −
Internal Model Principle 1. v G c ( z ) = S c G ( z ) = B r e u y R c A − • α ( z ) = least common multiple of the unstable poles of R c ( z ) and of V ( z ) ,
Internal Model Principle 1. v G c ( z ) = S c G ( z ) = B r e u y R c A − • α ( z ) = least common multiple of the unstable poles of R c ( z ) and of V ( z ) , all polynomials in z − 1
Internal Model Principle 1. v G c ( z ) = S c G ( z ) = B r e u y R c A − • α ( z ) = least common multiple of the unstable poles of R c ( z ) and of V ( z ) , all polynomials in z − 1 • Let there be no common factors between α ( z ) and B ( z )
Internal Model Principle 1. v G c ( z ) = S c G ( z ) = B r e u y R c A − • α ( z ) = least common multiple of the unstable poles of R c ( z ) and of V ( z ) , all polynomials in z − 1 • Let there be no common factors between α ( z ) and B ( z ) • Can find a controller G c ( z ) for servo/tracking (following R c )
Internal Model Principle 1. v G c ( z ) = S c G ( z ) = B r e u y R c A − • α ( z ) = least common multiple of the unstable poles of R c ( z ) and of V ( z ) , all polynomials in z − 1 • Let there be no common factors between α ( z ) and B ( z ) • Can find a controller G c ( z ) for servo/tracking (following R c ) and regulation (rejection of disturbance V )
Internal Model Principle 1. v G c ( z ) = S c G ( z ) = B r e u y R c A − • α ( z ) = least common multiple of the unstable poles of R c ( z ) and of V ( z ) , all polynomials in z − 1 • Let there be no common factors between α ( z ) and B ( z ) • Can find a controller G c ( z ) for servo/tracking (following R c ) and regulation (rejection of disturbance V ) if R c con- tains α ,
Internal Model Principle 1. v G c ( z ) = S c G ( z ) = B r e u y R c A − • α ( z ) = least common multiple of the unstable poles of R c ( z ) and of V ( z ) , all polynomials in z − 1 • Let there be no common factors between α ( z ) and B ( z ) • Can find a controller G c ( z ) for servo/tracking (following R c ) and regulation (rejection of disturbance V ) if R c con- tains α , say, R c = αR 1 :
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