All industrial and manufacturing processes operate under the control of a variety of automated and computer-based control systems. As process control technology evolves rapidly, and the digital age of Fieldbus instruments emerging, it is necessary for technical staffs who are involved in the field of process control and instrumentation to continuously upgrade their technical skills and knowledge.
This course is designed to help students to understand the basic principles and importance of process control in industrial process plants; Digital Signal Processing, Stability, Programmable logic controllers (PLC) and various control functions.
After completing this course, Students will have the professional knowledge to ensure that the systems and processes operate effectively, efficiently and safely.
WHO SHOULD COMPLETE THIS COURSE?
- Electrical Engineers
- Electronics Engineers
- Engineering assistants
- Plant maintenance engineers
- Service personnel
- Instrumentation technologists
- Technicians
- Process control technologists
- Supervisors
- Management executives
COURSE OUTLINE
DATA ACQUISITION AND CONTROL
- Process
- Fundamentals of automatic process control
- Simple manual control
- Automatic control
- Open loop system
- Closed loop system
- Feedback control
- Digital definition
DIGITAL SIGNAL PROCESSING
- Digital control principles
- Action in digital control loops
- Computer basic architecture
- Transducers and sensors
- Digital closed loop control system
- PLC
- SCADA
TOOLS OF DYNAMIC ANALYSIS
- Mathematical tools
- Development tools
- Assembly language tools
- Other software tools
LAPLACE TRANSFORMS
- Functions in frequency domain
- Laplace functions
- Table of Laplace transforms
- Ideal step function
- Ideal Ramp function
- Ideal Sinusoidal function
MATHEMATICAL DESCRIPTION OF CHEMICAL PROCESSES
- Importance of the process model
- Mathematical models
- Dependent and Independent variables
- Lumped parameter systems
- Distributed parameter systems
- Discrete Time systems
PROCESS MODELS
- General conservation principles
- Conservation of Mass, Momentum and Energy
- Mass Balance
- Energy Balance
- State - Space Models
- Transform-Domain Models
- Impulse response Models
INTERRELATIONSHIP BETWEEN PROCESS MODELS
- State - Space and Impulse-Response Models
- Transform-Domain and Impulse-Response Models
- Transform-Domain and Frequency-Response Models
TRANSFER FUNCTION
- Properties of Transfer function
- Transfer function of a first order process
- Two first order lags in series
- Feedback control system
FIRST ORDER SYSTEMS
- Typical Block Diagram of Process
- Transfer function of a first order process
- Level control system
- Simple tank level problem
- Elementary block diagram of tank process
RESPONSE OF FIRST ORDER SYSTEMS TO VARIOUS INPUTS
- Step response
- Rectangular pulse response
- Impulse response
- Sinusoidal response
- Ultimate periodic response
- Frequency response
PURE GAIN AND PURE CAPACITY SYSTEMS
- Response of pure gain system to input
- Example
- Resistance capacitance types of process
- Response of pure capacity system to various inputs
- Response of pure gain system to Rectangular pulse input
LEAD/LAG SYSTEMS
- Characteristics parameters
- Obtaining Dynamic Response
- Unit step response Lead/Lag System
TWO 1ST ORDER SYSTEMS IN SERIES
- Differential equation model
- Transfer function model
- Non interacting systems in series
- Two tank process
SECOND ORDER SYSTEM IN SERIES
- Physical systems with second order dynamics
- Second order system with step Input
- Response of Second order system with Input
- Second order processes responses and systems
N ORDER SYSTEM IN SERIES
- General Nth Order System
- Higher order system with zeroes
- Unit step response
CONCEPTS OF STABILITY
- Response of process for input forcing function
- Stable system
- Stability of dynamic system
- Unstable system
- Asymptotically stability and BIBO stability
- Important considerations in process control
STABILITY OF LINEAR AND NONLINEAR SYSTEMS
- Critically stable systems
- Unstable systems
- Dynamic behavior of open loop unstable systems
- Systems with sustained oscillations
STABILITY OF FEEDBACK CONTROL
- Stability criteria
- Mathematical criteria for stability
- Considerations for critical frequency
- Industrial control in practice
- Process response curve
- Dead zone
CLASSIFICATION OF CONTROL
- Open loop system
- Closed loop system
- Concept of feed-forward control
- Feed-forward control
FEEDBACK CONTROL
- Process Modeling
- Drawbacks in feedback control
- Modes of Feedback control
- Proportional or gain mode
- Integral or reset mode
- Derivative or rate mode
BLOCK DIAGRAM
- Development of block diagram
- Simple tank level control
- Typical block diagram of a plant
- Common building blocks
- Block diagram of a REAL controller
- Block diagram of transformation theorems
