A Novel Fuzzy RPID Controller for Multiarea AGC with IABC Optimization

Table 7

Four area data.

Name of the parameter	Area 1	Area 2	Area 3	Area 4
Governor regulation, 𝑅 (Hz/pu)	2.4	2.2	2.5	2.3
Governor time constant, 𝑇𝑔 (s)	0.08	0.078	0.081	0.082
Nonreheat time constant, 𝑇𝑡 (s)	0.3	0.5	0.7	0.4
Reheat time constant, 𝑇𝑟 (s)	4.2	4.1	4.0	4.3
Reheat parameter, 𝑐	0.34	0.31	0.32	0.33
Power system gain constant, 𝐾𝑝 (Hz/pu)	120	115	118	116
Power system time constant, 𝑡𝑝 (s)	10-20-30	20	10	20
Frequency bias coefficient, 𝑏	0.125-0.275-0.425	0.125	0.275	0.125
Tie-line synchronizing coefficient between areas 1 and 2, 𝑇12			0.145-0.345-0.545
Tie-line synchronizing coefficient between areas 2 and 4, 𝑇24			0.145
Tie-line synchronizing coefficient between areas 4 and 3, 𝑇43			0.345
Tie-line synchronizing coefficient between areas 2 and 3, 𝑇23			0.145
Tie-line synchronizing coefficient between areas 3 and 1, 𝑇31			0.145-0.345-0.545