15 Questions
What does loss of synchronism in a power system result in?
No net power transfer between generators
What is required for generators to remain in synchronism with each other in an interconnected system?
Exact same speed of rotor rotation
What is the mechanical input torque represented as in the generator mechanical block diagram?
Moment of inertia of turbine & rotor
What does the classical generator model treat the generator as?
A voltage source behind the direct-axis transient reactance
What is the focus of AC stability analysis in a grid with one ac generator and one load?
Transient stability of the generators
What is the main consequence of losing synchronism in a power system?
No net power can be transferred between the generators
During the transient response of a power system, what kind of models need to be developed for the generators?
Electrical and mechanical models
In the classical generator model, how is the generator treated?
As a voltage source behind the direct-axis transient reactance
What does the generator mechanical block diagram represent as Te(δ)?
Equivalent electrical torque
What is needed for all of the generators in an interconnected system to remain in synchronism with one another?
The rotors turn at exactly the same speed
What is the main consequence of a power system being transiently unstable?
No net power can be transferred between the machines
What does the classical generator model treat the generator as?
A voltage source behind the direct-axis transient reactance
During the transient response of a power system, what kind of models need to be developed for the generators?
Both electrical and mechanical models
What is represented by Te(δ) in the generator mechanical block diagram?
Equivalent electrical torque
In order for all generators in an interconnected system to remain in synchronism with one another, what is required?
The rotors turn at exactly the same speed
Test your knowledge of power system dynamics and stability, including transient analysis, control, and time scales. Explore concepts such as synchronous machine synchronism and the impact of loss of synchronism on power transfer.
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