E 2.4.3.3 Inwertery

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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
The Function generator 200 kHz Net (726 962N) can be incorporated into a network. The basic software LEYLAB.control Lite 725007 or the full version LEYLAB.control 725006 is needed to operate the equipment. An optional non-networkable version is also available:
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.

 

Marka

Leybold

Firma produkuje zestawy edukacyjne do kształcenia akademickiego oraz szkolenia zawodowego z zakresu fizyki, chemii, biologii oraz elektroniki, elektrotechniki, automatyki, telekomunikacji, maszyn elektrycznych, odnawialnych źródeł energii i fotoniki, jest częścią grupy LD Didactic.

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