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Transmission-Lines

A project for Electrical Power Systems course (EEP 225)

Task 1: Transmission Line Parameters

Write a MATLAB script file (M file) to calculate first the Resistance, Inductance and Capacitance per phase of a 3 phase Transmission Line system. The user must be first asked to input the conductor resistivity, conductor length, and conductor diameter. Next, the user will be asked to choose whether the transmission system is symmetrical or unsymmetrical. For symmetrical spacing, only one distance will be given, but for unsymmetrical spacing, the distance between phases will be given. Next

Task 2: ABCD Parameters

After calculating R, L and C parameters, the user will calculate the ABCD constants based on the line length entered in Task 1. For a medium line length, the user will be asked whether the model is π or T. Finally, Task 3: Transmission Line Performance The user will choose between CASE I and CASE II. For any case, the user will be asked to input the receiving end voltage.

CASE I: After calculating the ABCD constants, if the receiving end load is 0.8 pf lag with active

power varying from 0 (no load) to 100 kW (full load), Draw a curve that relates the efficiency with the active power and another curve that relates the voltage regulation with the active power.

CASE II: After calculating the ABCD constants, if the receiving end power is 100 kW but with

power factor varying from 0.3 lag to UPF and from 0.3 lead to UPF. Draw a curve that relates the efficiency with the power factor and another curve that relates the voltage regulation with the power factor.

Contribution

  • To open this project in MATLAB you should have MATLAB 2017 or later.
  • To contribute to this project fork this repo to your account.