Under what condition is the system stable according to equal area criterion?
Under what condition is the system stable according to equal area criterion?
According to equal area criterion , if the rotor’s acceleration area during the fault is equal to its maximum possible deceleration area after the fault is removed, the system is in the transient stability critical state, and reaches its maximum value which represents TTC .
Is equal area criterion analytical?
The extended equal-area criterion thus devised provides analytical tools for transient stability analysis and sensitivity assessment. In turn, the latter furnishes transient stability limits and paves the way to control.
When we consider applying equal area criterion to electrical machines then the type of machine to which this method is applicable is?
The method is applicable to any two machine system. This method is not applicable to multi-machine system directly. The principle of this method consists of the basis that when δ oscillates around the equilibrium point with constant amplitude, transient stability will be maintained.
Which information is obtained from equal area criterion Mcq?
Absolute stability is obtained from equal area criterion.
What are the common assumption made for the equal area criterion?
The transmission line and machine resistances are neglected. c. Mechanical input remains constant.
For which one of the following types of motors is the equal area criterion for stability applicable *?
For which one of the following types of motors, is the equal area criterion for stability applicable? Equal area criterion used to transient stability analysis of synchronous machines, is consistency with transient energy function method for single machine-infinite bus system or two machines system.
Which of the following assumptions are commonly made in transient stability studies?
Some common assumptions made during transient stability studies are as follows: 1. Transmission line and synchronous machine resistances are neglected. Since resistance introduces a damping term in the swing equation, this gives pessimistic results. 2.
Which of the following is the method of improving transient stability?
The best method of improving transient stability is the use of high-speed circuit breakers. The quicker a breaker operates, the faster the fault is removed from the system and better is the tendency of the system to restore to normal operating conditions.
