Objectives

• Optimising control loops

• 2 and 4 quadrants control

• Static speed control

• Dynamic speed control

• Highly dynamic speed control

• Position control

• Step response

• Calculating the control difference

• Analyzing loads with step of reference variable

• Approaching stability limits  Highlights:

• The measurements care carried out with the CASSY converter controller.

• All measurement channels are potential-free and can therefore be used freely.

• All measurements can be carried out with or without a computer.

• In order to protect against overheating the stator windings of the direct current machine are equipped with thermal detectors.

• The direct current parallel machine has a didactic designed terminal board with the winding configuration "printed on it.

• Converter Controller is fully controllable in real time via RJ45 Ethernet, W-LAN and USB-C interfaces.

These interfaces can be used by the following software:

• CASSY Lab 2 for drives and energy systems,

• MATLAB® and LabVIEW ™

• Lab Docs Editor Advanced  Topics

• Coupling of motor and commutation encoder

• Stationary behaviour

• Measurement of the motor current

• Variation of the modulation frequency

• Dynamic behavior

• Structure of the control

• Investigation of the angular acceleration depending on the maximum limit current

•  Position control with and without subordinate current and speed controllers

• Investigation of positioning time and overshooting depending on speed and current limits and ramp time  COMPONENTS OF EQUIPMENT SETS

• 1 DC motor based on the specified power supply range. 1 Converter Controller CASSY

• 1 Connecting cable universal converter

• Four-quadrant operation of a direct current machine with an IGBT-H bridge circuit

• 1 DC power supply 390 V, 6 A, (PFC)

• 1 interface software for Drives and Power Systems  Prime mover:

• 1 Compound machine, 0.3"

• Speed and position sensor: 1 Incremental tacho, 0.3

• 1 Machine base bench, 90 cm

• 1 Machine base bench, 120 cm

• 2 Coupling / shaft end guard 0.3, transparent 1 Coupling, 0.3

• Required for the position control: 1 Gear, 0.3

• 1 Coupling / shaft end guard 0.3, transparent 1 Coupling, 0.3

Power supply:

• 1 Single-phase terminal unit 1 Panel frame, two-level

• 1 Safety bridging plugs, black, set of 10

• 1 Safety bridging plugs, yellow/green, set of 10 1 Safety experiment cables, 32 A, set of 34

• 1 Safety experiment cables, 32 A, yellow/green, set of 5