Transient Stability

The main objective of a Transient Stability Study is to analyse the Electro-mechanical response of an Electrical Power System to transient disturbances such as:

- Tripping transmission lines,

- Tripping synchronous machines,

- Load shedding,

- Applying and clearing faults,

- Starting/stopping induction machines.        

These disturbances will force the electrical power system to operate in a transient state before it comes back to its initial operating conditions. Sometimes after disturbances, the electrical power system will not be able to come back to it initial operating conditions. 


The way we proceed:

To perform transient studies on electrical power systems, we first consider the transient behavior characteristics of the equipment (machines, regulation systems, generators, etc.) and then model the grid using dynamic simulation software.


These studies allow the analysis of the identified transient phases, qualification and quantification of the disturbances which may appear, evaluation of the stability margins and proposal of remedial solutions in the event of a problem. They can also be used to evaluate instrumentation and control strategies (load shedding, power equilibration between generators, reconfiguration, etc.).


We can carry out on site measurements to obtain the missing equipment parameters and validate the simulation model.