GE generator Power system stabilizer
GE generator Power system stabilizer
(OP)
Dear all
On site we have one Ge generator 325MVA 4-pole hydrogen cooled with static excitation system EX2100. One of the features of the excitation system is the Power System Stabilizer. Unfortunately this is not tuned yet. Is it possible to tell me some more theoretical or practical data fro this feature? On the other generator of our CCGT(CCPP) the Steam turbine generator brushless excitation system has its power system stabilizer feature energized.
On site we have one Ge generator 325MVA 4-pole hydrogen cooled with static excitation system EX2100. One of the features of the excitation system is the Power System Stabilizer. Unfortunately this is not tuned yet. Is it possible to tell me some more theoretical or practical data fro this feature? On the other generator of our CCGT(CCPP) the Steam turbine generator brushless excitation system has its power system stabilizer feature energized.






RE: GE generator Power system stabilizer
rmw
RE: GE generator Power system stabilizer
RE: GE generator Power system stabilizer
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Sometimes I only open my mouth to swap feet...
RE: GE generator Power system stabilizer
But if you didn't buy that service, they are very hard to work with.
RE: GE generator Power system stabilizer
The enclosed link may provide a general overview in this subject htt
RE: GE generator Power system stabilizer
rmw
RE: GE generator Power system stabilizer
Was clear to me - we know National Grid plc as 'The Grid' anyway! They still don't tell us what tuning parameters to use, only what they expect the behaviour of the machine to be after we set up the PSS.
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Sometimes I only open my mouth to swap feet...
RE: GE generator Power system stabilizer
RE: GE generator Power system stabilizer
As David points out the transmission system operator you are plugged into should have some guidance for how the PSS behaves--normally it says something like it should be on and properly tuned, probably not terribly helpful! The tuning of a PSS is usually part of the commissioning program for a generator.
As noted by others this service is available from the generator manufacturer as well as consulting firms. It is a non trival thing to do properly, be prepared to pay a fair amount of money for such a study. The software tools required to simulate this are rather costly, both in money and in staying proficient in their use (never mind learning how to use them to begin with).
Given that it is a GE generator I would suggest you contact GE's study folks, they write the PSLF/PSDS software and will certainly be able to help you given that it is a GE machine. Their senior staff can probably suggest PSS settings that will be nearly right on, experience counts for something in this case. By the way, I am in no way affiliated with GE, I just know that gray haired folks are often really helpful. One of those seen it, done it, got the T-shirt things....
RE: GE generator Power system stabilizer