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0512-4362

Applied feedback systems

Also listed as: מערכות משוב שימושיות

Control as it is implemented rather than as it is derived. Loop shaping, PID tuning, compensators and the hardware constraints that decide the design.

Semester
Not fixed
Weekly hours
4h
Counts as
Faculty electives
Interest areas
Mechatronics and robotics

Comes after

  • Introduction to control
  • Electrical Engineering approval

Opens up

  • Advanced control research

What it covers

Topics

  • Modelling for control and model uncertainty
  • Stability margins and robustness
  • Loop shaping
  • PID tuning in practice
  • Lead, lag and general compensator design
  • Hardware implementation, sampling and quantisation

Results worth carrying out

  • Sensitivity and complementary sensitivity

    S=11+L,T=L1+L,S+T=1S = \frac{1}{1 + L}, \qquad T = \frac{L}{1 + L}, \qquad S + T = 1
  • Stability margins

    PM=180+L(jωgc),GM=1L(jωpc)\mathrm{PM} = 180^\circ + \angle L(j\omega_{gc}), \qquad \mathrm{GM} = \frac{1}{|L(j\omega_{pc})|}
  • Ziegler–Nichols, ultimate cycle

    Kp=0.6Ku,Ti=0.5Tu,Td=0.125TuK_p = 0.6 K_u, \qquad T_i = 0.5 T_u, \qquad T_d = 0.125\, T_u

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