Strengthen Voltage Control and Dynamic Stability
Excitation systems and power system stabilizers influence voltage response and electromechanical damping — two properties that matter every time the grid experiences a disturbance. Solvina supports model validation, stability analysis, testing and tuning to improve confidence in generator dynamic behaviour.
The engineering problem
behind the question.
A PSS that was tuned once, at commissioning, on a system that has since changed can do more harm than good — poorly tuned stabilizers have been known to introduce oscillations rather than damp them. Excitation limits that were never verified can also leave a generator exposed during a genuine fault.
What we study
The scope is shaped around the engineering question, system boundary and operating conditions relevant to the study.
AVR / excitation system review
PSS model and settings
Transient stability assessment
Disturbance-response analysis
Testing where applicable
Tuning recommendations
Validation and reporting
From engineering question to evidence.
The excitation and PSS models are reviewed against the physical system, transient stability is assessed for the disturbances relevant to your network, and — where testing is included — response is verified on the real machine. Any retuning is checked against the same scenarios before it is finalised.
What this work
gives you.
Voltage response that supports the grid rather than working against it
Reduced risk of PSS-induced oscillation
A validated basis for excitation limiter settings
Evidence that supports grid code and stability requirements
Questions we
often hear.
The AVR controls terminal voltage; the PSS adds a supplementary signal specifically to damp electromechanical oscillations. They interact, so both are usually reviewed together rather than in isolation.
Yes — AVR/PSS response is often part of the evidence a grid code requires, so the two are frequently scoped together.