Ders Notu 33
- Bode Plot Construction for Higher-Order Systems
- Frequency Response of Systems with Time Delay
- Minimum and Nonminimum-Phase Systems
- Steady-State Error Analysis Using Bode Magnitude Plots
Introduction to Frequency Response Techniques, Analytical Expressions and Bode Plots
- Frequency Response Methods
- Analytical Derivation of Frequency Response
- Frequency Response Plot
- Bode Diagrams
Revised: December 15,2025
PID Tuning Methods and Practical Implementation Issues
- PID Control in Practice
- Ziegler–Nichols Tuning Rules (First and Second Method)
- Practical Issues in PID Implementation
- Anti-Windup Mechanisms
- Lead Compensation
- PID Controller Design
- Lag–Lead Compensation
- Physical Realization of Compensators
- Feedback Compensation
- Root Locus–Based Controller Design
- Improving Steady-State Error
- PI Controller Design
- Lag Compensation
- PD Controller Design
- Proportional Control (P)
- Integral Control (I)
- Derivative Control (D)
- Examples and Applications
- Definition and characteristics of the root locus
- Relationship between open-loop and closed-loop poles
- Root Locus Sketching Rules
- Examples and Applications
Stability Analysis via Routh-Hurwitz, Steady-State Error Analysis
- Routh–Hurwitz Special Cases: Case 1: Zero in the first column
- Routh–Hurwitz Special Cases: Case 2: Entire row of zeros
- Steady-State Error Concepts
- Static Error Constants
- Disturbance Effects
- Non-Unity Feedback Systems
Revised: 27.10.2025
Block Diagrams and Stability Analysis
- Components used in block diagrams
- Cascade, parallel, and feedback connections
- Block diagram reduction techniques (moving summing junctions and takeoff points)
- Transfer function derivation from block diagrams
- Mathematical definitions of stability:
Asymptotic stability
Instability
Marginal stability - BIBO (Bounded-Input, Bounded-Output) stability definition
- Stability of closed-loop systems: relation to pole positions (LHP, RHP, imaginary axis)
Time Response for First, Second, and Higher Order Systems (Part II)
- Second-order system characteristics: natural frequency and damping ratio
- Pole locations for overdamped, underdamped, critically damped, and undamped cases
- Step response of underdamped systems
- Mathematical derivation of time-domain parameters:
- Relation between pole locations and time response
- MATLAB applications for time response analysis
- Systems with additional poles and zeros; second-order approximations
- Non-minimum phase systems and their step response characteristics
Revised: 13.10.2025
Time Response for First, Second, and Higher Order Systems (Part I)
- Relationship between poles, zeros, and system response
- First-order systems: time constant, rise time, settling time
Second-order system types and damping cases:
Undamped
Underdamped
Critically damped
Overdamped
- Transfer Function
Laplace Transformation Review
Time-Domain Modeling
State-Space Representation
- Instructors
- Grading
- Textbooks
- Syllabus
- Course Content: Fundamentals of control systems; open-loop and closed-loop control concepts; historical and modern applications; control system design process and block diagrams; transient and steady-state response analysis.
Lecture 9 to the end.
KOM5102 Design of Digital Control Systems
State Space Analysis
KOM5102 Design of Digital Control Systems - Lecture Notes - Week: 7
(This file gives more details to s to z mapping, which was given in the previous file!)
KOM5102 Design of Digital Control Systems - Lecture Notes - Week: 8: Digital PID
Dear All,
Please download the PDF file I’ve shared here to review the material we’ve covered in class so far. Make sure you’re comfortable solving all the problems included, as the midterm exam, scheduled for Friday, April 11 at 10:00 am will feature smaller versions of these problems.
I hope you will find them useful in gaining confidence and understanding the subject matter more clearly.
Wishing you all good luck and success!
Best regards,
KOM3712 - Örnek Problemler & Çözümleri
Sevgili öğrenciler,
Aşağıda, geçmiş vize ve final sınavlarından oluşturulan bir grup örnek problem yer almaktadır. Açıklamalarla birlikte çözümleri de sunulmuştur. Lütfen önce ders notlarını (sunumları) dikkatlice gözden geçirin ve oradaki örnekleri çözün. Daha sonra, son beş yıl içinde sorulan aşağıdaki gerçek sınav problemlerini çözmeye çalışın. Lütfen sınava hazır olduğunuzu hissettikten sonra bunları çözmeye çalışın ve sonra çözümlere göz atın. Umarım problemleri ve çözümlerini konuyu daha derinlemesine anlamak ve sınav için daha güvenli hissetmek için yararlı bulursunuz.
En iyi dileklerimle,
KOM3712 - Example Problems & Solutions
Dear Students,
Following is a bunch of example problems collected
from the past midterm and final exams. Their solutions with some explanations
are also presented. Please first review carefully the lecture notes
(presentations) and solve the examples there. Then, try to solve the following
real exam problems asked during the past five years. Please try to solve them
after you feel you are ready for the exam then dive into the solutions. I hope
you will find the problems and their solutions useful to understand the subject
matter deeper and feel more confident for the exam.
Best wishes,
Frekans Cevabı ile Tasarım
- Geçici cevap isterlerini karşılamak için kazanç ayarı
- Kalıcı hal cevabını iyileştirmek için Geri-faz Kompanzatörü tasarımı
- Geçici cevabı iyileştirmek için İleri-faz Kompanzatör Tasarımı
- Hem kalıcı hal hem de geçici cevabı iyileştirmek için Geri-ileri-faz Kompanzatör Tasarımı
Design via Frequency Response
- Gain adjustment to meet a transient response specification
- Lag Compensator design to improve the steady-state response
- Lead Compensator Design to improve the transient response
- Lag-Lead Compensator Design to improve both the steady-state and the transient response
KOM3712-Kontrol Sistemleri Tasarımı
Bölüm 10.2 - Frekans Cevabı Yöntemleri
- Nyquist Kararlılık Ölçütü
- Kazanç ve Faz Payları
KOM3712-Control Systems Design
Chapter 10.2 - Frequency Response Methods
- Nyquist Stability Criterion
- Gain and Phase Margins
KOM3712-Kontrol Sistemleri Tasarımı
- Ders İzlencesi
- Bode Çizimlerinin Özeti
Duyuru 1
Sevgili LÜ Öğrencilerimiz,
Tüm YL ve Doktora öğrencilerimizin ORCID (Uluslararası Yazar Kimlik Numarası) alarak Ulusal Tez Merkezi Otomasyon Sistemine eklemeleri gerekmektedir. Tez ve makalelerinizin takip edilebilmesi için bu bir zorunluluktur.
Açıklama için lütfen ekte FBE'den ve YÖK'ten gelen dokümanları dikkate alın.
Başarılar dileriz,
Dear Graduate Students,
You are urgently requested to get ORCID (Open Researcher and Contributor ID) so that the publications you are involved including your theses and research papers can be traced and cited.
Please see the official announcements attached.
Best wishes,