Numbering Code	U-ENG26 36027 LJ72	Year/Term	2022 ・ Second semester
Number of Credits	2	Course Type	Lecture
Target Year		Target Student
Language	Japanese	Day/Period	Tue.4
Instructor name	HAGIWARA TOMOMICHI (Graduate School of Engineering Professor) HOSOE YOUHEI (Graduate School of Engineering Senior Lecturer)
Outline and Purpose of the Course	This course covers a basic theory of digital control systems, based on the understanding on "Control Engineering". The treatment of discrete-time signals and linear discrete-time systems in the frequency domain is first introduced through the z-transformation and pulse transfer functions. Digital compensators as well as their programs and frequency responses, the stability and steady-state errors of closed-loop feedback systems, sampling period selection and anti-aliasing filters are then lectured on. The class members are supposed to understand the fundamental treatment of digital control systems through such concepts, who are also supposed to work on assignments about computational techniques to have better understanding.
Course Goals	To understand the basic treatment of digital control systems including their components and the associated difficulties and measures, particularly the z-transformation and its role, the discretization of controlled objects, the similarity to and differences from the analysis of continuous-time control systems, as well as aliasing.
Schedule and Contents	Fundamentals of digital control and the z-transformation (4--5 weeks) The fundamental structure of digital control systems and the associated issues; the z-transformation as a key tool for dealing with digital control systems; the frequency-domain interpretation of samplers and aliasing. Pulse transfer functions, frequency response, and digital compensators (4--5 weeks) Basic components such as hold circuits and pulse transfer functions; discretization of controlled objects; the pulse transfer functions and programs of digital compensators; transient responses of discrete-time systems; stability and frequency responses; and basic digital compensators. Closed-loop digital control systems (5--6 weeks) Analysis of digital control systems with pulse transfer functions through the discretization of the controlled object and disturbances; the stability, stability criteria and steady-state errors of closed-loop systems; basic standpoint for the disturbance rejection in digital control systems, sampling period selection and anti-aliasing filters. Checking degrees of understanding of all the lecture topics, e.g., through comments on the exam, closes the class.
Evaluation Methods and Policy	The assignments are only for motivating review; the grading will be based on the exam.
Course Requirements	Control Engineering; Exercise of Computer Programming in Electrical and Electronic Engineering (basic understanding about programming)
Study outside of Class (preparation and review)	Reviewing the topics in the preceding part of the lecture is always important before attending the class. Receive exercise problems by attending the class upon the beginning of the class, and submit the answer reports to receive marking and comments by TA.
Textbooks	Textbooks/References	ディジタル制御理論入門, 荒木光彦, (朝倉書店), ISBN:4254209649
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