Simulink Control Design™ - MathWorks

(Tuis.) #1

  • xp,i is the state vector whose ith component is perturbed from the operating point
    value.

  • xo is the state vector at the operating point.

  • up,i is the input vector whose ith component is perturbed from the operating point
    value.

  • uo is the input vector at the operating point.

  • x ̇xp,i is the value of x ̇ at xp,i, uo.

  • x ̇up,i is the value of x ̇ at up,i, xo.

  • x ̇o is the value of x ̇ at the operating point.

  • yxp,i is the value of y at xp,i, uo.

  • yup,i is the value of y at up,i, xo.

  • yo is the value of y at the operating point.


User-Defined Blocks


All user defined blocks such as S-Function and MATLAB Function blocks, are compatible
with linearization. These blocks are linearized using numerical perturbation.

User-defined blocks do not linearize when these blocks use nondouble precision data
types.

See “Linearize Blocks with Nondouble Precision Data Type Signals” on page 2-193.

Look Up Tables


Regular look up tables are numerically perturbed. Pre-lookup tables have a
preprogrammed (exact) block-by-block linearization.

2 Linearization

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