E 2.5.3.1 Napędy z silnikami indukcyjnymi

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Opis

The power electronics part of this lab practical uses training panels. The electrical machine employed is an industrial machine on a base, whereby the characteristics of the machine can be determined using the Machine test system 0.3. Power is supplied to the machine under test via a static converter, which obtains its power from the (three-phase) mains network.

Objectives

  • Protective measures and electrical safety
  • Set-up of power generating systems according to circuit diagrams
  • Putting electrical drives into operation
  • Recording of load characteristics with various operating parameters
  • Achieving skills in measuring electrical machines
  • Automatic speed control for an asynchronous (induction) machine

This equipment set allows experiments on how the speed of asynchronous (induction) machines can be modified using line-commutated static converters. The speed of the machine depends on the stator voltage and rotor impedance and can be adjusted in the experiment by changing these two variables. As well as putting the machine into operation and setting its parameters, the main thing considered is the change in the response of the machine. This involves recording load characteristics and determining key parameters. Addition of a PID controller allows the experiment set-ups to be enhanced into variable-speed drives with closed-loop speed control.

Students work in the power engineering lab with mains voltage. Experiments procedures are contained in a printed manual.

The experiments are designed for intermediate and advanced levels.

Topics

  • Drives using motors with slip-ring rotors and three-phase power controllers
  • Drives using motors with slip-ring rotors and pulse-controlled rotor impedance
  • Drives using motors with slip-ring rotors and static converter cascades

Similar to illustration

Components of equipment sets

734 02  8  Reference variable generator 1
734 19  8  Gain and offset adjust 1
735 07 Thyristor branch pair, 1000 V/12 A 3
735 09  8  Load power electronics 1
735 17 Run-up control unit 1
735 18 Fuse threefold super-fast 2
735 20 Trigger point limiter 1
734 064N  8  PID digital controller Net 1
725 007 Software: Leylab.control Lite 1
  The PID digital controller Net (734 064N) can be incorporated into a network. The basic software LEYLAB.control Lite or the full version LEYLAB.control 725006 is needed to operate the equipment. An optional non-networkable version is also available: 1
734 064   PID digital controller 1
735 065 Rectifier B6, 3X400 V/10 A 1
735 135 Control unit six pulse, digital 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 1
732 28   Multi-function machine 0.3 1
731 09   Tacho generator 0.3 1
732 29 Rotor starter 0.3 1
531 282   Multimeter Metrahit Pro 2
727 11   Power meter 1
575 231   Probe 100 MHz, 1:1 / 10:1 2
575 230   Digital storage oscilloscope 722 1
735 261   Isolation amplifier, four channel 1
501 02   BNC cable, 1 m 2
731 989USB  4  Machine test system 0.3 1
728 421   CBM10 MOMO/FCCP 1
726 09   Panel frame T130, two-level 1
726 86   DC-Power Supply ± 15 V/3 A 1
726 75   Three-phase supply unit with ELCB 1
726 80 Transformer, 45/90, 3 N 1
731 06   Coupling 0.3 2
731 07   Shaft end guard 0.3 2
731 081   Coupling guard 0.3 transparent 2
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
565 371   LIT: Power Electronics and Drive Technology, T 12.4.1 (In German) 1
565 372   * LIT: Power Electronics and Drive Technology, T 12.4.1 (in English) 1
additionally required: PC with Windows XP/Vista/7/8

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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