Computation of Stability Delay Margin of Time-Delayed Generator Excitation Control System with a Stabilizing Transformer

Table 2

Delay margins 𝜏^∗ for different values of 𝐾_𝐼 and 𝐾_𝑃 of the AVR system without a stabilizing transformer.

𝐾𝐼 (s^−1)	𝜏^∗ (s)
	𝐾𝑃=0.3	𝐾𝑃=0.5	𝐾𝑃=0.7
0.1	1.4164	0.6275	0.3652
0.2	0.9700	0.5471	0.3349
0.3	0.6781	0.4665	0.3037
0.4	0.4831	0.3912	0.2722
0.5	0.3459	0.3235	0.2411
0.6	0.2447	0.2639	0.2111
0.7	0.1674	0.2118	0.1825
0.8	0.1066	0.1664	0.1554
0.9	0.0576	0.1267	0.1300
1.0	0.0174	0.0920	0.1063