controlplus 0.2.0

A package for analysis and design of Control Systems in python.

controlplus

A package for analysis and design of Control Systems in python by Dr. Ahsen Tahir.

Installation

$ pip install controlplus

Usage

from controlplus.controlplus import find_rlocus, compensated_pole_from_ts, zero_compensator_tf, draw_overlay_rlocus

import control import matplotlib.pyplot as plt

Forward path transfer function:

s = control.TransferFunction.s; G = 1 / (s * (s + 4) * (s + 6))

Consider second order approximation:

damp_ratio = 0.504

Draw root locus with overlaying damping ratio lines with intersecting points/poles:

plt.figure(figsize=(8,6)); draw_overlay_rlocus(G, damp_ratio); plt.show()

Desired settling time:

new_ts = 1.11

Find compensator pole for PD controller:

desired = compensated_pole_from_ts(new_ts, damp_ratio)

Get polynomial for zero compensator:

Gc = zero_compensator_tf(desired, G)

Final transfer function:

final_G = Gc * G

Find poles and respective gains for intersection of damping ratio line and root locus:

find_rlocus(G, damp_ratio)

Draw root locus with overlaying damping ratio lines with intersecting points/poles:

plt.figure(figsize=(8,6)); draw_overlay_rlocus(final_G, damp_ratio); plt.show()

Contributing

Interested in contributing? Check out the contributing guidelines. Please note that this project is released with a Code of Conduct. By contributing to this project, you agree to abide by its terms.

License

controlplus was created by Dr. Ahsen Tahir. It is licensed under the terms of the GNU General Public License v3.0 license.

Credits

controlplus was created with cookiecutter.