This document provides an introduction to control systems, including:
1. It defines a control system as any system that regulates quantities like energy, information, or money in a desired way.
2. Control systems are important because they are used widely in industry and technology to control processes.
3. The basic components of a control system are objectives of control, system components, and outputs or results.
4. Feedback is incorporated into most control systems to improve accuracy by comparing actual outputs to desired outputs.
ncreased automation can help the pharmaceutical industry make more efficient usage of energy and raw materials; improve safety in working conditions; enhance regulatory compliance, and improve both product quality and consistency.
This presentation contains,
i. Basics of Control Systems,
ii. Wind Turbine Controls
iii. Basics about Wind Farm and Control
iv. Wind Turbine Gearbox
v. Wind Turbine Generator
vi. Grids
ncreased automation can help the pharmaceutical industry make more efficient usage of energy and raw materials; improve safety in working conditions; enhance regulatory compliance, and improve both product quality and consistency.
This presentation contains,
i. Basics of Control Systems,
ii. Wind Turbine Controls
iii. Basics about Wind Farm and Control
iv. Wind Turbine Gearbox
v. Wind Turbine Generator
vi. Grids
A review on techniques and modelling methodologies used for checking electrom...nooriasukmaningtyas
The proper function of the integrated circuit (IC) in an inhibiting electromagnetic environment has always been a serious concern throughout the decades of revolution in the world of electronics, from disjunct devices to today’s integrated circuit technology, where billions of transistors are combined on a single chip. The automotive industry and smart vehicles in particular, are confronting design issues such as being prone to electromagnetic interference (EMI). Electronic control devices calculate incorrect outputs because of EMI and sensors give misleading values which can prove fatal in case of automotives. In this paper, the authors have non exhaustively tried to review research work concerned with the investigation of EMI in ICs and prediction of this EMI using various modelling methodologies and measurement setups.
Literature Review Basics and Understanding Reference Management.pptxDr Ramhari Poudyal
Three-day training on academic research focuses on analytical tools at United Technical College, supported by the University Grant Commission, Nepal. 24-26 May 2024
Water billing management system project report.pdfKamal Acharya
Our project entitled “Water Billing Management System” aims is to generate Water bill with all the charges and penalty. Manual system that is employed is extremely laborious and quite inadequate. It only makes the process more difficult and hard.
The aim of our project is to develop a system that is meant to partially computerize the work performed in the Water Board like generating monthly Water bill, record of consuming unit of water, store record of the customer and previous unpaid record.
We used HTML/PHP as front end and MYSQL as back end for developing our project. HTML is primarily a visual design environment. We can create a android application by designing the form and that make up the user interface. Adding android application code to the form and the objects such as buttons and text boxes on them and adding any required support code in additional modular.
MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software. It is a stable ,reliable and the powerful solution with the advanced features and advantages which are as follows: Data Security.MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software.
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
We have compiled the most important slides from each speaker's presentation. This year’s compilation, available for free, captures the key insights and contributions shared during the DfMAy 2024 conference.
Online aptitude test management system project report.pdfKamal Acharya
The purpose of on-line aptitude test system is to take online test in an efficient manner and no time wasting for checking the paper. The main objective of on-line aptitude test system is to efficiently evaluate the candidate thoroughly through a fully automated system that not only saves lot of time but also gives fast results. For students they give papers according to their convenience and time and there is no need of using extra thing like paper, pen etc. This can be used in educational institutions as well as in corporate world. Can be used anywhere any time as it is a web based application (user Location doesn’t matter). No restriction that examiner has to be present when the candidate takes the test.
Every time when lecturers/professors need to conduct examinations they have to sit down think about the questions and then create a whole new set of questions for each and every exam. In some cases the professor may want to give an open book online exam that is the student can take the exam any time anywhere, but the student might have to answer the questions in a limited time period. The professor may want to change the sequence of questions for every student. The problem that a student has is whenever a date for the exam is declared the student has to take it and there is no way he can take it at some other time. This project will create an interface for the examiner to create and store questions in a repository. It will also create an interface for the student to take examinations at his convenience and the questions and/or exams may be timed. Thereby creating an application which can be used by examiners and examinee’s simultaneously.
Examination System is very useful for Teachers/Professors. As in the teaching profession, you are responsible for writing question papers. In the conventional method, you write the question paper on paper, keep question papers separate from answers and all this information you have to keep in a locker to avoid unauthorized access. Using the Examination System you can create a question paper and everything will be written to a single exam file in encrypted format. You can set the General and Administrator password to avoid unauthorized access to your question paper. Every time you start the examination, the program shuffles all the questions and selects them randomly from the database, which reduces the chances of memorizing the questions.
ACEP Magazine edition 4th launched on 05.06.2024Rahul
This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.
2. Introduction
1. What is a control system.
2. Why control systems are important.
3.What are the basic components of a control system.
4. Some examples of control-system applications.
5.Why feedback is incorporated into most control systems.
6. Types of control systems.
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3. What is a control system
A control system is considered to be any
system which exists for the purpose of
regulating or controlling the flow of
energy, information, money, or other
quantities in some desired fashion.
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4. What is a control system
• An interconnection of components forming a
system configuration that will provide a
desired system response
• The study of control provides us with a
process for analyzing and understanding the
behavior of a system given some input
• It also introduces methods for achieving the
desired system response
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5. Systems and Control
A System is a device or process that takes a
given input and produces some output:
A DC motor takes as input a voltage and
produces as output rotary motion
A chemical plant takes in raw chemicals and
produces a required chemical product
System
Input Output
6. Why control systems are important
In recent years, control systems have assumed an
increasingly important role in the development and
advancement of modern civilization and technology.
Practically every aspect of our day-to-day activities is
affected by some type of control system.
Control systems are found in abundance in all sectors of
industry, such as quality control of manufactured products,
automatic assembly lines, machine-tool control, space
technology and weapon systems, computer control,
transportation systems, power systems, robotics, Micro-
Electro-Mechanical Systems, nanotechnology, and many
others.
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7. Basic Components of a Control System
1. Objectives of control.
2. Control-system components.
3. Results or outputs.
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8. Examples of Control-System Applications
Potential applications of control of these systems may benefit the
following areas:
• Machine tools. Improve precision and increase productivity by
controlling chatter.
• Flexible robotics. Enable faster motion with greater accuracy.
•Photolithography. Enable the manufacture of smaller
microelectronic circuits by controlling vibration in the
photolithography circuit-printing process.
• Biomechanical and biomedical. Artificial muscles, drug
delivery systems, and other assistive technologies.
• Process control. For example, on/off shape control of solar
reflectors or aerodynamic surfaces.
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9. Examples of Control-System Applications
Steering Control of an Automobile:
As a simple example of the control system, consider the
steering control of an automobile. The direction of the two
front wheels can be regarded as the controlled variable, or
the output, y; the direction of the steering wheel is the
actuating signal, or the input, u.
The control system, or process in this case, is composed of
the steering mechanism and the dynamics of the entire
automobile. However, if the objective is to control the
speed of the automobile, then the amount of pressure
exerted on the accelerator is the actuating signal, and the
vehicle speed is the controlled variable.
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10. Examples of Control Applications
Aerospace Applications:
Aircraft or missile guidance and control
Space vehicles and structures
11. Examples of Control-System Applications
Sun-Tracking Control of Solar Array:
To achieve the goal of developing economically
feasible non-fossil-fuel electrical power, development
of solar power conversion methods, including the
solar-cell conversion techniques
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12. Why feedback is incorporated into most
control systems
Control Systems can be classified as :
open loop system (Nonfeedback System)
closed loop system (Feedback System).
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13. Open-Loop Control Systems
(Nonfeedback Systems)
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The elements of an open-loop control system can
usually be divided into two parts: the controller and the
controlled process, as shown by the block diagram
14. Open Loop Control Systems
A system in which the output has no effect on
the control action is known as an open loop
control system. For a given input the system
produces a certain output. If there are any
disturbances, the out put changes and there is no
adjustment of the input to bring back the output
to the original value.
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15. Open-Loop Control Systems
• The controlled ‘output’ is the
resulting toast
• System does not reject
changes in component
characteristics
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16. Closed-Loop Control Systems
(Feedback Control Systems)
What is missing in the open-loop control system for more
accurate and more adaptive control is a link or feedback
from the output to the input of the system.
To obtain more accurate control, the controlled signal y
should be fed back and compared with the reference
input.
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17. Open-Closed Loop Control
Closed-loop control takes account of actual
output and compares this to desired output
Measurement
Desired
Output
+
-
Process
Dynamics
Controller/
Amplifier
Output
Input
Open-loop control is ‘blind’ to actual output
18. TYPES OF FEEDBACK CONTROL SYSTEMS
Feedback control systems may be classified in a number
of ways, depending upon the purpose of the
classification. For instance, according to the method of
analysis and design, control systems are classified as:
Linear or Nonlinear
Time-varying or Time-invariant
Continuous-data or Discrete-data
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19. Control
Many control systems can be characterised
by these components
Sensor
Actuator Process
Control
Reference
r(t)
Outpu
t
y(t)
-
+
Error
e(t)
Control
Signal
u(t)
Plant
Disturbance
Sensor Noise
Feedback
22. Examples : Washing Machine
System Requirements
Understanding of load sizes
Receptacle to hold clothes
‘Plumbing’
Ease of use, Reliability
Low Cost
Actuators
AC or DC Motors
Water inlet/drain
Sensors
Water level
Load speed/balance
Control
Choice depends on design
23. Examples : The CD
Player
A CD player is an example
of control system
Requires
Accurate positioning of the
laser read head
Precise control of media
speed
Conversion of digital data to
analogue signal
24. Examples : Hard Drive
A computer disk drive is
another example of a
rotary control system
Requires
Accurate positioning of the
magnetic read head
Precise control of media
speed
Extraction of digital data
from magnetic media
25. Examples : Modern Automobiles
Modern Automobiles are
controlled by a number of
computer components
Requires
Control of automobile sub
systems
Brakes and acceleration
Cruise control
ABS
Climate control
GPS
Reliability
Low cost
Ease of use
26. The Control Problem
Generally a controller is required to filter the error
signal in order that certain control criteria or
specifications, be satisfied. These criteria may involve,
but not be limited to:
1. Disturbance rejection
2. Steady state errors
3. Transient response characteristics
4. Sensitivity to parameter changes in the plant
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27. The Control Problem
Solving in control problem generally involves;
1. Choosing sensors to measure the plant output
2. Choosing actuators to drive the plant
3. Developing the plant, actuator, and sensors equations
4. Designing the controller
5. Evaluating the design analytically by simulation, and
finally by testing the physical system.
6. If the physical tests are unsatisfactory, iterating these
steps.
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28. The Control Problem
Problem Formulation
Solution Translation
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Physical
System
Mathematical
model
system
Mathematical
solution of
mathematical
problem
30. Modeling – Remarks
• Modeling is the most important and difficult task
in control system design.
• No mathematical model exactly represents a
physical system.
Math Model Physical System
Math Model Physical System
• Do not confuse models with physical systems!
• In this course, we may use the term “system” or
“plant” to mean a mathematical model.
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