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Modern Control Theory I.

Modern irányításelmélet I.
A tantárgyleírás hatályossága
Hatályosság kezdete:
2026. March 21.
Hatályosság vége:
Subject name (Hungarian, English)
Modern irányításelmélet I.
Modern Control Theory I.
Subject code BMEVIFOD053
Subject type
Training Level
Course types and hours (weekly/semester)
Course type lecture tutorial laboratory
hours (weekly) 4 0 0
type (linked/independent)
Assessment type vizsga
Credits 5
Subject coordinator
Dr. Lantos Béla
position: egyetemi tanár
Responsible department
Irányítástechnika és Informatika Tanszék
Faculty Villamosmérnöki és Informatikai Kar
Subject website
Primary curriculum type
Direct prerequisites – Strong prerequisite none
Direct prerequisites – Weak prerequisite none
Direct prerequisites – Parallel prerequisite none
Direct prerequisites – Milestone prerequisite none
Direct prerequisites – Exclusion none

Objectives

Programme

I. Discrete time control of single variable (SISO) systems

  • Two deree of freedom (2DOF) control design based on reference model.
  • Control design for dead time systems using Smith predictor.
  • k-step ahead predictor.
  • Generalized predictive control.
II. Multivariable (MIMO) control design in state space
  • Controllability, reachability, observability, reconstructability. Canonical forms. Algebraic  similarity of continuous time and discrete time systems.
  • Pole assignment using state feedback. Full and minimal order state observers.
  • Generalized predictive control in state space.
  • Decoupling with stability guarantee.

III. Nonlinear control systems

  • Stability (Lyapunov, asymptotic, global).
  • Lyapunov’s direct method. Lyapunov’s indirect method. LaSalle theorem.
  • Sliding mode control, elimination of oscillations.
  • Backstepping control. Input/state linearization.

 IV. Optimal control systems

  •  Analytical conditions of static optimum. Karush-Kuhn-Tucker theorem. Lagrange multiplier rule.
  • Numerical optimization methods in finite dimension. Optimum seeking in a single variable. Gradient, conjugate gradient, Newton and quasi-Newton methods. Davidon-Fletcher-Powell (DFP) and Broyden-Fletcher-Goldfarb-Shanno (BFGS) methods.
  • Discrete time LQ control of LTV systems. Reciprocal roots condition for LTI systems, solution based on  eigenvalue/eigenvector technique and algebraic Riccati equation (DARE).
  • Kalman filter for LTV stochastic systems. Similarity to LQ control. Kalman filter for LTI systems. LQG control. Extended Kalman Filter (EKF) for nonlinear systems.
  • Analytical conditions of dynamic optimum. Local maximum principle. Pontrayagin’s maximum principle, bang-bang control.
  • Continuous time LQ control of LTV systems. Symmetric roots condition for LTI systems, solution using eigenvalue/eigenvector technique and CARE.

 V. Identification and adaptive control

  • Linear parameter estimation without and with forgetting. Batch and recursive algorithms. Nonlinear parameter estimation.
  • Typical system and noise models. Cost function and its first and approximating second derivatives.
  • Parameter estimation of ARX models using LS and IV (instrumental variable) methods.
  • Parameter estimation of ARMAX model using numerical optimization based on quasi-Newton method.
  • Identification of MIMO systems in state space. Hankel-parameters, shift invariance of generalized observability matrix. Linear algebra tools for solving N4SID and MOESP identification.
  • Model predictive and selftuning adaptive control structures. Implicit (inverse) adaptive control of MIMO LTI systems.

 VI. Soft computing methods in control engineering

  • Classification of neural networks (NN). Modeling of linear systems with time delay and feedforward neural networks (FFNN). Tuning of FFNNs, the BP (backpropagation) algorithm.
  • Fuzzy sets and fuzzy set operations. Fuzzy logic, relations and implication algorithms. Defuzzyfications methods.  TSK, Sugeno and Wang type fuzzy systems.
  • Fuzzy logic controllers. MacVicar-Whelan metarules. The rule base of fuzzy PD and PI type controllers. Fuzzy toolbox.
  • Genetic algorithms (GA). Genotype and fenotype forms. Structure of simple and multipopulation genetic algorithms (SGA, MPGA). Fitness functions. Selection methods. Binary and real realizations of genetic operators. Reinsertion strategies. GA toolbox.
  • Clastering. Structure estimation and system initialization.

VII. Adaptive fuzzy control

  • Adaptive networks, ANFIS. Hybrid tuning of Sugeno controllers.
  • Fuzzy SISO adaptive control. Structure of 1st type indirect fuzzy control. Specifications and design prescriptions, Lyapunov equation. The form of the nominal and supervisory fuzzy controllers. Consideration of parameter constraints, Luenberger projection.
  • Handling of the 2nd type indirect fuzzy adaptive control. Stability guarantee and chance.
  • Fuzzy approximation using SVF technique in two and more variables.

 

 

The aim is to summarize the main advanced theoretical results of control engineering in the field of sampled data, optimal, adaptive and fuzzy/neural control systems that will presumably influence both the theory and the practice for a long time.

Learning outcomes

Ez a tantárgy a KKK rendeletben meghatározott, következő kompetenciák fejlesztését szolgálja:

Knowledge

No learning outcomes recorded.

Skills

No learning outcomes recorded.

Attitudes

No learning outcomes recorded.

Autonomy and responsibility

No learning outcomes recorded.

Oktatási módszertan

The course consists of lectures including also demonstration examples. The subject intensively builds on MATLAB and its toolboxes.

Tanulástámogató anyagok

Online források
Prescribed literature:; Kailath T.:; Linear Systems. Prentice Hall,1980.; Lantos; B.-Márton L.: Nonlinear Control of Vehicles and Robots. Springer, 2011; Khalil; H.K.: Nonlinear Systems. Prentice Hall, 2002; Lyung L.:; System Identification: Theory for the User. Prentice Hall,1999; Lantos: Fuzzy Systems and Genetic Algorithms. Műegyetemi Kiadó, 2001; Suggeted literature:; Lantos: Control System Theory and Design I-II (in Hungarian). Akadémiai Kiadó, new editions in 2016

Recommended preliminary knowledge for completing the subject

Knowledge type competencies
(azon előzetes ismeretek összessége, amelyek megléte nem kötelező, de a tantárgy eredményes teljesítését nagyban elősegíti)
Control Engineering
Skill type competencies
(azon előzetes képességek és készségek összessége, amelyek megléte nem kötelező, de a tantárgy eredményes teljesítését nagyban elősegíti)
nincs
Recommended (non-compulsory) preliminary competencies
(azon ajánlott (nem kötelező) előzetesen megszerzendő kompetenciák összessége, amelyek jelentősen hozzájárulnak a tantárgy eredményes teljesítéséhez)
Control Engineering
General rules
Requirements: a) In term-time: One Homework, the result will be counted in the exam Semester closing: Examb) In examination period: Written exam 
Assessment methods
In-term assessments

No detailed assessments provided.

Weight of in-term assessments

No weights provided.

Exam-period assessments

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Weight of exam elements

No weights provided.

Grade calculation

No grade thresholds provided.

Attendance requirements

No attendance requirements provided.

Rules for retake and resubmission

Not provided.

Short description

Not provided.

Detailed description

Not provided.

Recommended courses
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Workload to complete the subject

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Validity of subject requirements
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Requirements valid until:
Curriculum placement

No curriculum placements recorded for this subject version.