Distance - Motor Control & Variable Frequency Drives (1.2 CEU's)

Dr. Eduard Loiczli

Eduard Loiczli is currently a Nuclear Integration Senior Electrical Engineer for Ontario Power Generation. He has more than 26 years experience in Electrical Engineering and Controls and has made many achievements in the industry. He has designed programming applications for nuclear applications, SCADA and DCS. He has also created programming and integration solutions for oil extraction and an automated line for the glass industry. In addition to programming solutions, Mr Loiczli has been project leader for design in many electrical projects.
 
Mr Loiczli is a member of IEEE, Ontario Fire Association and APEO. He is a Certified Nuclear Engineer.

 

  • Introduction to the Drive Systems, Speed; Torque and Position Control
    • Typical application for Speed Control
    • Typical Application for Torque Control
    • Typical Application for Position Control
  • Classification of the Drives, AC & DC Drives
    • Classification of the DC Drives
    • Classification of AC Drives: Induction Motor drives; Synchronous Motor drives
  • Electronic Components: Diodes; SCR; GTO; Bi-Polar Transistors; VMOS-FET; IGBT
  • Power Electronic Converters: Rectifier; Chopper; Inverter; Cyclo-Converters
    • Types and operation of the rectifiers with Natural Commutation
    • Types and operation of rectifiers with forced commutation
    • One two and Four operation rectifiers, 3; 6 and 12 pulse rectifiers
    • One; two and four quadrant operation Choppers
    • Typical structure of an inverter
    • Cyclo Converter typical structure and operation
    • Most frequent association of power converters for motor control application
  • DC Motor Control and Four Quadrant Operation
    • Horizontal Load (transportation) versus Gravitational load (hoist; elevator; crane)
    • Regenerative Braking for horizontal loads
    • Regenerative braking for Gravitational loads
    • Dynamic Breaking For Horizontal loads
    • Dynamic breaking for Gravitational loads
    • Plugging for Horizontal loads
    • Plugging for Gravitational loads
  • Choppers or DC-DC Converters, example of a Streetcar-Subway application
    • Control Example and characteristics for a four quadrant operation chopper
    • Compatibility between the power converter and the Motor Load System
  • DC Motor Close Loop Control-Tuning
    • DC Motor control, cascade control,
    • Operation without tachogenerator-IR compensation,
    • Tuning of a DC Drive
    • Operation in Speed Mode
    • Operation in Torque mode
    • Economy Mode Operation
    • Most important Manufacturers of DC Drive
    • DC Drive applications
  • Medium Voltage DC Drives
    • Typical Structure of a DC Medium Voltage DC Drive and application
  • Soft starters and application
    • Characteristics of the soft starters, why and how they are different from a drive
    • Typical applications for Soft-Starters
  • AC Drives, two stage power converters: rectifier DC Bus Inverter
    • Typical structure of a AC Drive
    • Protection of the AC Drive
    • Active and Passive snubbers
    • Packaging the Drive, the importance of the DC Buss Leakage Inductance
    • The Rectifier control
    • The Inverter Control
    • The DC Bus Capacitor Bank Charging System
    • Regenerative Units
    • Active Front end drive
    • Dynamic Breaking System
    • Output 3 % and 5% Filters
    • Typical Alarms and I/O of the drive
  • Scalar Versus VECTOR Drives, limitations of the SCALAR Drives
    • Principle of operation of the scalar drive-also known as VFD
    • settings of the VFD:
    • Volt/hertz,
    • DC Injection Breaking;
    • Dynamic Breaking;
    • Acceleration time;
    • Deceleration time;
    • Max and Min Speed;
    • Skip frequency;
    • Fly Catch
    • Carrier frequency
    • Slip Compensation
    • Close Loop Control of a VFD, slip regulator
  • Pulse Width Modulation and other Modulation used for harmonics Cancelation
    • Rectangular wave output inverters
    • Amplitude Modulation
    • Fix 3 pulse and 5 pulse modulation, implementation
    • Pulse Width Modulation and implementation
    • Harmonics and effects on the motor, methods of harmonics cancelation and attenuation
    • voltage and current harmonics, parasitic torque
    • induced eddy currents in the motor shaft and cancelation methods (Baldor ring)
  • Current Inverter SCR & GTO type, Design And Applications
    • Structure and functionality of the Current inverter
    • Critical design Consideration for Current Inverter
    • Close Loop Control for Current inverter
    • Typical Applications of the Current inverters, Medium Voltage drive
    • Implementation using GTO as oppose to SCR for the Inverter
    • Close loop control of the Current inverter for Synchronous Machine
  • Vector Control Strategy, types of vector control and application
    • Vector Control Principle-Rudolph Blaschke Model, Park transformation
    • Parameter Identification
    • Induction Motor characteristic when supplied from Vector or Field Oriented drive
    • Types of Field Orientations
    • Sensoreless Drives
    • Voltage and Current control of a Vector Drive
    • Performance of a Vector Drive using Field Orientation
    • Typical application of Field Orientation Drives
  • Direct Torque Control and applications
    • Principle of operation
    • Accelerated vector -Stator type field orientation
    • Typical application of a Direct Torque Control Drive
    • The capability of the DTC Drive
    • on the shelf drives incorporating DTC and Vector Control
  • Medium Voltage Drives and Application
    • Structure of a Voltage type medium Voltage drive
    • Typical control for medium Voltage drive
    • Applications of the medium voltage drive
  • Other dedicated drives customized for application, e.g. HVAC drives
    • Customization of drives for different application with reduced number of setting and parameters
    • Typical industrial applications which require dedicated drives
  • Sizing and selection of a drive, using manufacturer software
    • Kolmorgen; Rockwell and other software used for sizing and selection of the drive
  • Multi motor application
    • Typical issues in the multi-motor drive applications
  • High starting torque applications, induction motor specification
    • Rotork and Limitorque actuators
  • Electromechanical Speed Control Systems and applications
    • cross connect-voltage deep and winding stress
    • primary resistor starting
    • Autotransformer starting
    • Magnetic Amplifier
    • Split Phase Motor
    • Consequent Pole Motor
    • Unbalance starting
    • Star-Delta system
    • Forward-reverse System
    • Secondary resistor starting
  • Motor -Generator Groups and Application,
    • Ward-Leonard For Quadrant Operation Group
    • Wound Rotor induction motor Synchronized System for traveler Screens
    • MCC- Motor control Center Systems
  • Synchronous Motor Control
  • Importance of Grounding and Shielding - EMI
  • Servo Drives and Indexing Drives
  • Serial Real time communication Network-SERCOS
  • Motion Control Application for positioning

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$1,045

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