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Objectives

• the operation of the components in a closed loop control system including static and dynamic functions
• Identify the requirements for open loop and closed loop stability
• Use three methods to tune a control system for stated quality control
• control loop for optimum control
• Understand the principles and design features of feedforward control
• Tune a feedforward Understand the functions of cascade control loops and the advantage of cascade control over single element feedback control
• Tune a cascade control system for optimum control
• Identify the advantages of feedforward control over feedback control
• Understand the operation and function of ratio control systems
• Tune ratio control systems
• Tune a controller by trial and error
• Improve on the trial and error method by using analytical methods
• Apply the ultimate sensitivity tuning method to properly tune feedback controllers
• Determine tuning constants by using procedures to improve as found settings
• Run response curves on a process
• Measure gain, dead time and process lag of a process
• Determine what controller gain or proportional band, integral, and derivative actions are best to control this process
• Understand the difference between set point change and load change
• Identify when tuning changes may be needed for improved control and state reasons for this
• Recognize when advanced controls are beneficial
• Explain feedforward control and list the benefits
• Run plant tests to determine feedforward relationships
• Calculate the feedforward constants
• Explain what adaptive or scheduled gain is and its benefits
• Calculate adaptive gains for non-linear processes
• Explain the function and operation of dead time compensators
• Tune dead time compensators
• Use different methods to improve control of processes with dead timeIdentify when process changes may be needed for improved control

The Delegates

• Instrumentation and Control Engineers & Technicians
• Plant Operators
• Operation Engineers
• Process and Utility Supervisors
• Project Engineers & TechniciansTechnical Supervisory personnel involved in Tuning Control Loops, Feedback and Advanced Controllers

Contents

• Introduction and course overview.
• Control Modes
  • Proportional, Integral and Derivative
• Dynamic and Steady State Considerations
  • Gain, Dead Time and Time Constant
• Tuning Control Systems:
  • Closed Loop Tuning Using Ziegler Nichols Method
  • Evaluation and Control Criteria
• Cascade Control:
  • Primary Loop
  • Secondary Loop
  • Design and Tuning Criteria
• Ratio Control:
  • Applications and Implementation
• Feedforward Control:
  • Criteria,
  • Applications,
  • Tuning,
  • Implementation
  • Material and Energy Balances
• Safety Concerns and Procedures when Operating Control Systems
• Relationship of Controller and Process:
  • Four components in a closed loop system
  • Interaction of changes of each component
  • Benefits of Good Control
• Rules for Improved Trial and Error Tuning
• Analysis of Closed Loop System:
  • Tuning Using Oscillation Techniques
• Analysis of Open Loop System:
  • Tuning Using a Response Curve Generated by a Step Change
  • Tuning Using a Response Curve Produced by a Load Change
  • Working with Unusual Response Curves
• Process Characteristics and Related Tuning Requirements
• Understanding Changes that may be Required in the Process and Suggest Alternative Methods
• Relationship of Controller and Process:
  • Various Parts of Processes and Interaction of these Parts
• Description and Benefits of Feedforward Controllers:
  • Tests Required to Obtain Feedforward Constants
  • Calculation of the Feedforward Constants
• Description and Benefits of Adaptive or Scheduled Gain:
  • Methods to Tune Controllers with Adaptive Gain
  • Use of Adaptive Gain to Provide Control of Non-linear Processes
  • Using Adaptive Gain to Provide Special Effects
  • Limits, Step Changes, Transmitter Failure Protection, Surge Control, etc
• Analysis of Processes with Excessive Dead Time
  • Dead Time Compensatory
  • Tuning Dead Time Processes with PID only
  • Small Changes to a Process to Provide Improved Control
• Application of Error Squared Controllers for Level Control.
• Understanding Changes that may be Required in the Process

The Discount

10% in case of Three P. (or more)