To control is a basic instinct in human beings. Control engineering is needed in almost every branch of engineering. With the advent of computers, more and more shift happening towards their use in controlling systems. Digital control engineering requires the prerequisite knowledge in physical systems, sensors, transducers, actuators, basic math practices and interfacing to computers /microcontrollers. Educators have for a long-time believed that it is necessary to learn the control of continuous-time systems before moving ...
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To control is a basic instinct in human beings. Control engineering is needed in almost every branch of engineering. With the advent of computers, more and more shift happening towards their use in controlling systems. Digital control engineering requires the prerequisite knowledge in physical systems, sensors, transducers, actuators, basic math practices and interfacing to computers /microcontrollers. Educators have for a long-time believed that it is necessary to learn the control of continuous-time systems before moving on to discrete-time control (also known as digital control) systems. The author does not agree with this view. Even though several physical systems operate continuously in time, sensing, measuring and processing of control data and corrective actions are basically discrete methods. Therefore, it is imperative that a course in Control should start with the discrete signals and systems. The basics learned from discrete signal and systems can be easily applied in continuous-time systems by using a very small sampling-time interval. Author starts with discrete-time concepts but concurrently introducing the continuous-time concepts and methods. The Z-transform and Laplace transforms are both introduced in a single chapter. Moving on to discrete systems, responses and control methods, by bringing in the concepts and methods of Laplace transform. The textbook ends with the feedback control methods and implementation of the digital controller transfer functions using DSP. The text is aimed at the students who are just beginning their control education in the undergraduate program of engineering/technology. The text covers a lot of ground to enable the students to learn the language of control. Familiarize them with many important concepts and methods of digital control and yet not burden them with complex issues such as the sensitivity parameters and margins of stability. The textbook also concentrates on the time domain discussion and do not go in to the frequency domain methods to keep it simple. FEATURES The book uses MATLAB very liberally to illustrate the control concepts and examples. Each concept has an example which the instructor can take up in the classroom or assign for self-study. Students can use these numerous examples for experiential learning. The book also uses SIMULINK examples to show sample-by sample processing of the concepts of control. Lastly the book gives examples of how to implement a digital controller using a Digital Signal Processor such as the Texas Instrument's 320C6713 processor. Each chapter includes one or two laboratory exercises using MATLAB AND SIMULINK, which can be used by the instructors in Lab instruction. Contact http: //professorjaiagrawal.weebly.com/ for resources.
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