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

Figure 5

Voltage response of the AVR system with and without a stabilizing transformer for 𝐾_𝑃=0.7 and 𝐾_𝐼=0.8s⁻¹: (a) 𝜏=0.1554 s; (b) 𝜏=0.17 s.

(a)

(b)