Simulation 2 Yee,rg.docx

SIMULATION 2 – (Magnetically Coupled Circuits) NAME: Yee, Ryan Glenn B. DATE: December 30, 2018 INTRODUCTION When two loops with or without contacts between them affect each other through the magnetic field generated by one of them, they are said to be magnetically coupled. The transformer is an electrical device designed based on the concept of magnetic coupling. It uses magnetically coupled coils to transfer energy from one circuit to another. Transformers are key circuit elements. They are used in power systems for stepping up or stepping down ac voltages or currents. They are used in electronic circuits such as radio and television receivers for such purposes as impedance matching, isolating one part of a circuit from another, and again for stepping up or down ac voltages and currents. OBJECTIVES The objective of this simulation is to determine the 3 currents in each loop. Using both the simulation and manual calculations to compare the data that will be gathered. The knowledge learned from the lesson will be crucial in solving/calculating the problem manually EQUIPMENT / SOFTWARE Pspice Schematics Student Version REFERENCES Fundamentals of Electric Circuits 4th Ed. By: C. Alexander & M. Sadiku PROCEDURE For the simulation: 1. Determine the coupling coefficients on the coils according to the given diagram 2. Place the components and connect them together. Make sure to input the required values. 3. Place K_linear to input the coupling coefficients 4. Simulate For the calculation: 1. Assign the dependent variables or if you prefer just to use a simple mesh method, it is also possible 2. Solve the problem with 3 loops and 3 meshes. 3. Compare the final answer to the simulated results. 1|DEPARTMENT OF ELECTRICAL ENGINEERING

FINAL CONNECTION DIAGRAM

DATA SHEET / OBSERVATION TABLE Simulation: Currents I Magnitude I Phase 1 3.351E-01 -5.564E+01 2 2.045E-01 -7.378E+01 3 1.138E-01 2.146E+01 Calculated:

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CALCULATIONS

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DISCUSSION and CONCLUSION

When simulating, you must note that: PSpice analyzes magnetically coupled circuits just like inductor circuits except that the dot convention must be followed. In PSpice Schematic, the dot (not shown) is always next to pin 1, which is the left-hand terminal of the inductor when the inductor with part name L is placed (horizontally) without rotation on a schematic. Thus, the dot or pin 1 will be at the bottom after one counterclockwise rotation, since rotation is always about pin 1. The most challenging part in the simulation is how to properly connect the inductors or their coupling. Meanwhile, in the calculation, determining the sign convention of the dependent variables is crucial.

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