Stability margin configuration method for specified-accuracy PID control system

Stability margin configuration method for specified-accuracy PID control system

  • CN 106,527,120 A
  • Filed: 12/13/2016
  • Published: 03/22/2017
  • Est. Priority Date: 12/13/2016
  • Status: Active Application
First Claim
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1. a kind of collocation method of the PID control system stability margin with designated precision, its feature are comprised the following steps:

  • S1, sets up the frequency characteristic model of the frequency characteristic model and PID controller of controlled device;

    S2, according to specified cross-over frequency ω

    xWith magnitude margin AmRequire, calculate the proportional gain of PID controller;

    S3, based on optimizing algorithm, search meets specifies Phase margin Φ

    mCut-off frequency ω

    c

    S4, calculates the storage gain K of PIDiWith differential gain Kd

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