Opis
The experiments are carried out using DC machines of industrial manufacture. The power is supplied to the machine under test via a thyristor speed controller.
Objectives
- Protective measures and electrical safety
- Setting up variable speed DC drives and putting them into operation
- Assessment of control response
The equipment set is suitable both for student experiments in a lab using low voltage (400 V three-phase) and on a mobile trolley for demonstrations by teachers in a classroom. The experiment procedures are contained in a printed manual.
The target group is made up of commercial apprentices and students of electrical machine construction. The course offers experiments at an intermediate level and also allows for the necessary insight into machine behaviour for scientific interpretation at undergraduate level.
Topics
- Automatic control of multi-quadrant drive
- Introduction to the requirements
- Analysis of controlled systems
- Analysis of actuating static converters
- Optimisation of the current control loop
- Recording of armature circuit constants
- Adaptation of current controller
- Adjustment of current limiting
- Optimisation of speed control loop
- Putting thyristor speed control in the first quadrant into operation
- Setting of DC chopper and inverter stability limits
- Recording of static converter control characteristic
- Determination of armature circuit constants
- Recording of the transient function of the controlled variable, armature current
- Recording of the transient function of the controlled variable, armature current, with and without adaptive controller
- Switchover of static converters
- Setting current limiting
- Determination of the integral-action coefficient for the drive
- Determination of the transient of the controlled variable, speed
- Recording a switching diagram
Similar to illustration
735 32 | Thyristor speed control unit | 1 |
731 09 | Tacho generator 0.3 | 1 |
731 86 | DC compound machine 0.3 | 1 |
735 190 | Phase control noise filter 3 x 4.5 A | 1 |
531 282 | * Multimeter Metrahit Pro | 2 |
575 231 | Probe 100 MHz, 1:1 / 10:1 | 2 |
575 230 | Digital storage oscilloscope 722 | 1 |
726 09 | Panel frame T130, two-level | 1 |
726 80 | Transformer, 45/90, 3 N | 1 |
726 962N | Function generator 200 kHz net | 1 |
562 791 | Plug-in power supply, 12 V AC | 1 |
731 06 | Coupling 0.3 | 1 |
731 07 | Shaft end guard 0.3 | 2 |
731 08 | Coupling guard 0.3 | 1 |
500 59 | Safety bridging plugs, black, set of 10 | 1 |
500 851 | Safety connecting leads, 32 A, set of 32 | 1 |
500 852 | Safety connecting leads, 32 A, yellow/green, set of 10 | 1 |
565 351 | LIT: Power Electronics and Drive Technology, T 12.3.2 (in German) | 1 |
565 352 | * LIT: Power Electronics and Drive Technology, T 12.3.2 (in English) | 1 |
Articles marked with * are not essential, we do however recommend them to carry out the experiment.