3 area system with primary LFC loop

Version 1.0.0.0 (8.68 KB) by sana'
a. Construct a SIMULINK block diagram to obtain the response of the frequency deviation, mechanical
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Updated 12 Nov 2011

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Task for the primary project
The data for a three area system is tabulated in the following table. The base MVA is 1000MVA.
Psij τt τg R H D Area i – j
1.918 0.5 0.2 0.05 5 0.6 1 1 – 2
1.720 0.6 0.3 0.0625 4 0.9 2 2 – 3
1.861 0.4 0.25 0.08 6 0.8 3 3 – 1


The Three units are operating in parallel at the nominal frequency of 60Hz. A load change of 200MW (0.2pu) occurs at area 2.
a. Construct a SIMULINK block diagram to obtain the response of the frequency deviation, mechanical power deviation, and tie line power deviation responses for the two types of control; the primary LFC control, and the tie line bias control (ACE).
b. Comment on your results.

sana' adel

YU / hijjawi

Cite As

sana' (2025). 3 area system with primary LFC loop (https://in.mathworks.com/matlabcentral/fileexchange/33750-3-area-system-with-primary-lfc-loop), MATLAB Central File Exchange. Retrieved .

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Version Published Release Notes
1.0.0.0