Steady State Stability studies are restricted to small and gradual changes in the system operating conditions.
We also ensure that phase angles between two buses are not too large and check for the overloading of the power equipment and transmission lines.
Following a large disturbance in the synchronous alternator the machine power (load) angle changes due to sudden acceleration of the rotor shaft.
The objective of the transient stability study is to ascertain whether the load angle returns to a steady value following the clearance of the disturbance.
In an interconnected power system, these random variations can lead catastrophic failure as this may force the rotor angle to increase steadily.
Steady state determination is an important topic, because many design specifications of electronic systems are given in terms of the steady-state characteristics.
A steady state flow process requires conditions at all points in an apparatus remain constant as time changes.
[4] When a periodic force is applied to a mechanical system, it will typically reach a steady state after going through some transient behavior.
This is also related to the concept of homeostasis, however, in biochemistry, a steady state can be stable or unstable such as in the case of sustained oscillations or bistable behavior.
Homeostasis (from Greek ὅμοιος, hómoios, "similar" and στάσις, stásis, "standing still") is the property of a system that regulates its internal environment and tends to maintain a stable, constant condition.
Typically used to refer to a living organism, the concept came from that of milieu interieur that was created by Claude Bernard and published in 1865.
[5] In pharmacokinetics, steady state is a dynamic equilibrium in the body where drug concentrations consistently stay within a therapeutic limit over time.