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Analysis and Design of Power Electronic Circuits using Orcad Professor Babak Fahimi, PhDDirector, Power Electronics and Controlled Motion LaboratoryUniversity of Texas at Arlington
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Getting started with PSpiceTo start with a PSpice project:Go to capture CIS Lite Edition Go to File menu. Select New Project option. Choose analog or mixed A/D option and specify the project name and its location and click Ok
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Once the step 3) is completed the following window appears. Choose Create a blank project option
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Create the circuit by placing all its parts using Part option from Part menu. In this way a complete electrical circuit can be formed.
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Points to rememberWhen creating a new project , use Analog or Mixed A/D set-up option.Watch the file location / directory structure.
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Design and simulation of power electronic circuits Power Electronic Circuits can be classified as: DC-DC Converters AC-DC Converters (Rectifiers)DC-AC Converters (Inverters)AC-AC Converters
Now design and simulation of each of these circuits will be discussed.
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AC-DC Converters (Rectifiers)AC-DC converters ( Rectifiers) can be classified as:Half wave rectifier Full wave rectifier
These can further be classified depending upon the rectifying element being used . If using diode, are called uncontrolled rectifiers. Whereas if using thyristor, are called controlled rectifiers.
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Half Wave Uncontrolled Rectifiera) For Resistive LoadMake the circuit in PSpice using steps mentioned earlier. Components used are:VSin (voltage source)DIN4002 (diode)R (Resistance)GND_SIGNAL/CAPSYM.
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Make the simulation profile using New Simulation Profile command from PSpice menu.
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Go to Edit Simulation Profile in PSpice menu, simulation settings window will open. Go to Analysis and set the simulation parameters as shown below.
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Run the simulation by using command RUN from PSpice menu.
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Get plots for IR1(resistance current), RMS value of IR1 and V1(input voltage) using Add Trace command from Trace menu
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Plot the resistance current and then use Fourier command from Trace menu to get the frequency response of the resistance current.
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Half Wave Uncontrolled Rectifier b) For RL LoadCreate another page under same schematic and make the circuit using same steps. Components used are:VSin (voltage source)DIN4002 (diode)R (Resistance)L ( Inductor)GND_SIGNAL/CAPSYM
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Now simulate the circuit using same steps and get plots for resistance current and input voltage.
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Half Wave Uncontrolled Rectifierc) For RC LoadCreate another page under same schematic and make the circuit using same steps. Components used are:VSin (voltage source)DIN4002 (diode)R (Resistance)C ( Capacitor)GND_SIGNAL/CAPSYM
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Now simulate the circuit using same steps and get plots for resistance current and capacitor voltage.
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Half Wave Uncontrolled Rectifierd) For RL load with freewheeling diodeCreate another page under same schematic and make the circuit using same steps. Components used are:VSin (voltage source)DIN4002 (diode)R (Resistance)L ( Inductor)GND_SIGNAL/CAPSYM
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Now simulate the circuit using same steps and get plots for resistance current , RMS value of resistance current and input voltage.
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Half Wave Controlled RectifierFor type (1) connectionsMake the circuit using same steps. Components used are:VSin (voltage source)VPULSE (voltage source)2N1595 (Thyristor)R (Resistance)GND_SIGNAL/CAPSYM
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Now simulate the circuit and get plots for resistance current.
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Half Wave Controlled RectifierFor type (2) connections (a) with zero time delay in gate pulseMake the circuit using same steps. Components used are:VSin (voltage source)VPULSE (voltage source)2N1595 (Thyristor)R (Resistance)GND_SIGNAL/CAPSYM
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Now simulate the circuit and get plots for resistance current and input voltage.
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Half Wave Controlled RectifierFor type (2) connections (b) with 4.1667ms time delay in gate pulseMake the circuit using same steps. Components used are:VSin (voltage source)VPULSE (voltage source)2N1595 (Thyristor)R (Resistance)GND_SIGNAL/CAPSYM
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Now simulate the circuit and get plots for resistance current and input voltage.
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Full Wave Uncontrolled Rectifier Full wave uncontrolled rectifier can be :Single phaseThree phase
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Single Phase Full Wave RectifierMake the circuit as shown:
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Simulate the circuit and get plots for all diode currents.
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Three Phase Full Wave RectifierMake the circuit as shown:
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Simulate the circuit and get plots for all diode currents.
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Points to rememberIn order to simulate the circuit signal reference must be named 0 ( the number zero)