PL 
EN 
Opis
The experiments are carried out on training panels in panel frames.
Objectives
- Protective measures and electrical safety
- Circuit assembly and wiring according to circuit diagrams
- Use of commercial measuring instruments: hand-held multimeters and oscilloscopes
Self commutated inverters are used in frequency converters, uninterruptible power supplies, mains coupling equipment for photovoltaic systems etc. This equipment set makes it possible to construct a single-phase AC inverter to create an AC voltage of variable frequency and amplitude.
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
Single ended forward converters
- Control of average values for voltage and current using PWM
- Measurement of voltage and current over time when VI = 30 V
- Measurement of voltage and current over time when VI = 115 V
- Measurement of efficiency and voltage stability
Asymmetric half-bridge forward converter
- Control of average values for voltage and current using PWM
- Time characteristic when v = 0.75
- Time characteristic when v = 0.50
- Time characteristic with duty cycle switch-over
- Time characteristic for sinusoidal inverter
- Inverter with VI = 115V
- Inverter with VI = 115V, f = 5 kHz
| 734 02 8 | Reference variable generator | 1 |
| 735 09 8 | Load power electronics | 1 |
| 735 18 | Fuse threefold super-fast | 1 |
| 725 007 | Software: Leylab.control Lite | 1 |
| 726 962 | Function generator 200 kHz | 1 |
| 734 19 | Gain and offset adjust | 1 |
| 735 065 | Rectifier B6, 3X400 V/10 A | 1 |
| 735 095 | Capacitors 2x 1000 µF, 385 V | 1 |
| 735 190 | Phase control noise filter 3 x 4.5 A | 1 |
| 735 341 | Control unit PWM/PFM | 1 |
| 735 346 | IGBT 1000 V/10 A | 4 |
| 501 02 | BNC cable, 1 m | 2 |
| 531 282 | Multimeter Metrahit Pro | 2 |
| 575 231 | Probe 100 MHz, 1:1 / 10:1 | 2 |
| 575 230 | Digital storage oscilloscope 722 | 1 |
| 735 261 | Isolation amplifier, four channel | 1 |
| 726 10 | Panel frame T150, two-level | 1 |
| 726 86 | DC-Power Supply ± 15 V/3 A | 1 |
| 726 80 | Transformer, 45/90, 3 N | 1 |
| 500 59 | Safety bridging plugs, black, set of 10 | 2 |
| 500 851 | Safety connecting leads, 32 A, set of 32 | 1 |
| 500 852 | Safety connecting leads, 32 A, yellow/green, set of 10 | 1 |
| 565 401 | LIT: Power Electronics and Drive Technology, T 12.2.2.2 & T 12.2.2.3 (in German) | 1 |
| 565 402 | * LIT: Power Electronics and Drive Technology, T 12.2.2.2 & T 12.2.2.3 (in English) | 1 |
Articles marked with * are not essential, we do however recommend them to carry out the experiment.
