A little help with Power System Stabilizers (PSS)

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SUMMARY

This discussion focuses on the viability of tuning Power System Stabilizers (PSS) using time-domain analysis. Key parameters such as overshoot, settling time, and rise time are mentioned as critical for understanding PSS effects, but the relationship between time-domain plots and phase compensation remains unclear. The conversation suggests using Bode plots for frequency analysis and emphasizes the importance of staying below 1 Hz to avoid sub-synchronous resonance (SSR) issues. Notably, tuning PSS is typically performed by specialists, with references to IEEE papers authored by Chester Raczkowski from Westinghouse for further insights.

PREREQUISITES
  • Understanding of Power System Stabilizers (PSS)
  • Familiarity with time-domain analysis techniques
  • Knowledge of frequency response methods, specifically Bode plots
  • Awareness of sub-synchronous resonance (SSR) phenomena
NEXT STEPS
  • Research tuning techniques for Power System Stabilizers (PSS)
  • Study time-domain analysis in power systems
  • Learn about Bode plots and their application in frequency response
  • Explore IEEE papers authored by Chester Raczkowski for advanced insights
USEFUL FOR

Electrical engineers, power system analysts, and anyone involved in the tuning and optimization of Power System Stabilizers (PSS).

Pablo Verdugo
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Hello everyone!
I've been searching everywhere for useful info about this topic, but I haven't been able to find anything.

My question is: Is it viable to tune a PSS by using time domain?
The thing is, i don't know how you can associate the frequency range in which the PSS is needed for, with time domain. I know there is some parameters to follow like Overshoot, settling time, rise time, but it seems to me that these parameters just help you to know the effects of PSS.

To explain my self a little better, i don't see how you can provide phase compensation by looking at a time-domain plot.

Thanks in advance for your comments!
Regards.
 
Engineering news on Phys.org
Might an old fashioned bode plot help?
www.documentation.emersonprocess.com/groups/.../d350401x012.pdf[/URL]

one can use a power plant as a function generator and gently drive a power system with megavars...
obtaining amplitude and phase response

but stay below 1 hz because you don't want to even think pf approaching SSR
(our turbine had torsional resonance at 7 hz)

I never saw the power system stabilizer being tuned - that was done by specialists.
The power system guru i met was Westinghouse's "Chester Raczkowski"
and he was above my league
try searching for IEEE papers with him listed as author

old jim
 
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