Power Electronics Lab Based-on Main Unit
(PE - 001)
  • Power Electronics Lab Based-on Main Unit (PE - 001)
    • Main Unit (PE - 001.1)
    • Master Card Holder (PE - 001.2)
    • Slave Card Holder (PE - 001.3)
    • Power electronics cards (PE - 001.4)
  • Line commutated converter cards ( PE - 001.4.1)
  • Self-Commutating Static Converters (PE - 001.4.2)
  • Hard copy user manual
  • Laboratory PC

Power electronics are firmly established in modern life. It uses power semiconductors like diodes, thyristors, and power transistors. Power electronics is considered an important, comprehensive sub-field of electrical engineering. The tasks of power electronics are switching, controlling, and converting electrical energy with power semiconductors at the most favorable efficiency possible. This group is designed to allow the student to analyze, design, and operation of power electronic circuits. Emphasis on single-phase and three-phase power conversion, uncontrolled/controlled rectifiers, generation of variable DC and AC, three-phase power inverters, etc. allowing a clear layout of the experimental circuits.

  • Fixed dc power supply 3.3v;0.8a
  • Fixed dc supply +5v;1.5a / -5v;1.5a
  • Fixed dc supply +12v;1.5a-12v;1.5a
  • Fixed dc supply +15v;1.5a-15v;1.5a
  • Adjustable dc power supply, v1, v2, v3 (-20 v - +20 v), 1.5 A
  • Three-phase power supply 0 - 150 hz, 0 - 14 vrms, 2 a
  • Three-phase power supply with adjustable phase-shift.
  • 2 X voltmeter auto range up to 500v DC, 460Vrms AC
  • 2 X ammeter auto rang up to 10a ac/ dc
  • 2 X resistance measurement up to 60 mohm
  • 2 X capacitance measurement from 10 nF up to 2000 μF
  • Inductance meter from 100 uH to 500 mH (Q<=50 , Q>1 at 1kHz)
  • 2 X temperature measurement(-273 C-400 c), diode, frequency(0 to 6 MHz) and continuity test
  • 64-Bit processor
  • Measurements storage memory
  • Plug-in board for all training cards
  • Set of measurement accessories and leads
  • 8-Bit digital signal output accessed via 2- mm sockets, ttl/cmos, clock frequency 0 – 100 khz, electric strength 0 to 24V
  • 8-Bit digital signal input, accessed via 2mm sockets, memory depth 16-bit x 2 k, ttl/cmos, sampling rate 0 – 100 khz, electric strength 0 to 24V
  • 16-bit digital I/O (8-bit digital inputs & 8-bit digital outputs), ttl/cmos
  • sampling rate 100 msps, adjustable voltage ranges from 1.8v to 3.3v,
  • 8 Relays 24v 1a dc for multi usage as fault troubleshooting
  • Usb2.0 Interface of a transfer speed of 480mbps, usb3.0 2.5gbps & vga interface.
  • 4-Channel Oscilloscope with 100 mhz band width, safe for voltages up to 200 Vp-p, sampling rate 200 Msps, 11 voltage/div ranges & 25 time/div ranges, inputs via bnc (4 inputs) or 2-mm sockets (4 inputs).
  • 2-channels for current measurement, overcurrent-protected including 4 different ranges up to 5A, sampling 100 Msps.
  • Function generator with adjustable amplitude up to 10Vp-p , adjustable offset from -10V to 10V and adjustable frequency from DC up to 10MHz (BNC Connection).
  • Embedded controllers.
  • The training system is provided with the following virtual measuring instruments:
    • Vi for fixed dc supplies
    • Vi for adjustable dc power supply ( -20 v to + 20 v)
    • Vi for three phase power supplies
    • Vi for multimeter (voltmeter-ammeter- rlc meter - Temperature - Diode test -continuity test).
    • 16 Digital outputs, 16 digital inputs. Display modes: binary, hex, decimal and octal numerals.
    • 4-Channel oscilloscope: band width 100 mhz, 25-time ranges, 100 ns/div to 10 s/div, 11 ranges 10mV/div to 20 V/div, trigger and pre-trigger, xy and xt modes, cursor function, addition and multiplication function for 2 channels
    • Spectrum analyzer: 9 voltage ranges 100 mv to 50 v, input frequency range 3 hz to 10 mhz, time domain display
    • Bode-plotter: 9 voltage ranges 100 mv to 50 v, frequency range 1 hz - 10mhz, time domain display and locus diagram
    • Function generator: 0.5 Hz - 10 mhz - 10 Vp-p, sine, square, triangular.
    • Arbitrary waveform and pulse generator
    • Power meter Digital software
    • Digital courses version for student without experiments solutions and for teacher with experiments solutions
    • Open source and not limited for specific period
    • Digital experiment set-ups.
    • Measurement & graphics can be saved within the experiment instructions by means of drag & drop.
    • Virtual instruments can be started directly from the experiment instruction pages questions with feedback and evaluation logic for checking student progress.
    • Print compatible document for printing of experiments instructions with solutions.
    • Include all measuring and control instrumentation to run the experiments.
  • The card holder Includes a 50-pin socket on the upper side of the unit used to connect between the card holder itself and BEDO main unit (MS-001) using a power/data cable.
  • After connecting between the card holder and the main unit; now all types of power supplies are connected to the card holder including DC supplies, AC supplies (single phase & 3-phase) & experimental card is ready to be plugged in to the card base.
  • Card base is a black square frame with a groove to facilitate inserting the experimental card.
  • The groove helps guides an edge of the experimental card so that the card is aligned with the front connector to be powered on.
  • Card holder is equipped with 2 side sliders for smooth movement of the card base.
  • Side sliders are equipped with braking end to prevent the card base from being pulled out too much.
  • Card base is equipped with miniature moving rods used to move the card base together with the experimental card inserted in two directions:
    • Front direction: so, the card can be powered from the front 50 pins connector.
    • Back direction: to take out the experimental card inserted and disconnect it from the power source.
  • The master card holder unit includes a number of indication LEDs divided into two groups:
    • First group (above the 50 pins socket): indicating the connectivity of the 3- phase power supply to the card holder unit.
    • Second group (below the 50 pins socket): indicating the connectivity to both DC & single-phase AC power supplies to the card holder unit.
  • On the left side of the card holder there is a cascade transfer card used to connect between master card holder and slave card holder.
  • Up to 3 card holders can be cascaded to the main unit at the same time for experimentation.
  • Slave card holder is a bench-top small size unit used to carry on and power any type of BEDO experimental cards.
  • The card holder Includes a 50-pin connector on the right side of the unit used to connect between the card holder itself as a (slave) and another (master) card holder using a power/data cable.
  • After connecting between a slave card holder and master card holder; now all types of power supplies are connected to the card holder including DC supplies, AC supplies (single phase & 3-phase) & experimental card is ready to be plugged in to the card base.
  • Card base is a black square frame with a groove to facilitate inserting the experimental card.
  • The groove helps guides an edge of the experimental card so that the card is aligned with the front connector to be powered on.
  • Card holder is equipped with 2 side sliders for smooth movement of the card base.
  • Side sliders are equipped with braking end to prevent the card base from being pulled out too much.
  • Card base is equipped with miniature moving rods used to move the card base together with the experimental card inserted in two directions:
    • Front direction: so, the card can be powered from the front 50 pins connector.
    • Back direction: to take out the experimental card inserted and disconnect it from the power source.
  • On the left side of the card holder there is a cascade transfer card used to connect between the card holder and another slave card holder.
  • Investigate semiconductor technologies to produce high-power devices.
  • Design and function of single-phase and three-phase rectifiers.
  • Understanding the concept of uncontrolled rectifiers, controlled rectifiers, and ac power controllers
  • Analysis and control of power electronic converters
  • Generating variable dc voltage using PWM.
  • Recording of control and operating characteristics.
  • Design of AC voltage controller and dc chopper.
  • Investigating single quadrant and four quadrant operating modes.
  • Experimenting three phase power inverters.
  • Learn block commutation, sinusoidal, super-sine, and space vector modulation for the generation of voltage- and frequency-variable voltage
  • Determining and understanding control response.
  • Observing the effect of operating frequency.
  • Differentiate between different modulation methods.
  • Learning FFT analysis of harmonics
  • Line commutated converter cards
  • Code : PE - 001.4.1
    • Characteristics of Line-Commutated Converters circuits.
    • Characteristics of power diode, BJT, SCR, IGBT & Power MOSFET.
    • Implementing Single Phase Uncontrolled Rectifier.
    • Observing the operation of Three-phase Uncontrolled Rectifier.
    • Effect of Smoothing Capacitor on Single phase and three phase uncontrolled rectifier.
    • Observe the operation of single-phase fully controlled converter.
    • study the operation of a single-phase half-controlled converter.
    • investigate the operation of three-phase fully controlled converter.
    • Experimenting with the operation mode of rectifying circuits feeding different loads.
    • Investigating single-phase and three-phase power controllers.
    • Fully controlled converter circuits M1C, M2C, M3, B2C, and B6C are being observed for their control and operation characteristics.
    • Simplified Analysis of B2-Converter circuits.
    • Effect of source impedance on the performance of converters.
    • investigates the implementation and the use of fast Fourier transform (FFT)
    • experimenting with the static phase converter circuits.
  • Self-Commutating Static Converters cards Code : PE - 001.4.2
    • Using pulse width modulation (PWM) to control dc and ac voltage.
    • Exterminating Single-quadrant choppers with Resistive and Resistive-inductive loads.
    • Recording the control characteristic of Single-quadrant choppers.
    • Experimenting with control operations of Four-quadrant DC choppers.
    • Observance of output voltage and output current of four quadrant choppers feeding Resistive-inductive load.
    • the effects of different clock frequencies on four quadrant choppers.
    • Investigating the DC and AC components of current and voltage.
    • fundamental frequency control of AC converter.
    • Measurements of amplitude modulation OF AC converters.
    • investigating AC converter’s phase control.
    • Measurements on block commutation.
    • sinusoidal modulation of the output voltage using pulse width modulation (PWM).
    • comparing the output current and output voltage of a three-phase power controller at various clock frequencies.
    • computing the pulse control factor based on the signal characteristics.
    • employing super-sine and trapezoidal modulation.
    • Analyze and determine the sequence of the base vector.
    • observing the relationships between the line voltage and the phase voltage.Comparing between different methods of modulation.