Virtual Labs

a: Each area operates completely independently without affecting the other b: Tie-line power flow deviations are ignored in control decisions c: Frequency regulation in one area can influence the power exchange with the other area d: Only one area actively controls its frequency while the other passively follows

In a two-area system, if Area 1 experiences an increase in load (with no immediate change in Area 2), what is the expected behavior of the tie-line power flow?

a: Area 1 will export more power to Area 2 b: Area 1 will import more power from Area 2 c: The tie-line power flow remains unchanged d: The tie-line power flow reverses direction abruptly

Which component in the control system directly responds to load changes by adjusting generation?

a: Transformer tap changer b: Automatic voltage regulator c: Circuit breaker d: Governor with its droop characteristic

What is the overall goal of two-area load frequency control?

a: To maintain the nominal frequency and scheduled power exchanges between the areas b: To operate both areas completely independently c: To maximize the tie-line power flow at all times d: To solely focus on frequency regulation without considering power exchange

In a two-area interconnected power system, the Area Control Error (ACE) is formulated using which of the following terms?

a: Tie-line power deviation only b: Frequency deviation only c: Both tie-line power deviation and frequency deviation d: Neither tie-line power nor frequency deviation

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