Generation hunting

[Paramji]

.What are the reasons for hunting in power generation?

 

[RRaghunath]

Steam control valve in case of STGs and Fuel control valves in case of GTGs or DG sets.

 

[crshears]

Governor time lag; incorrect or overly sensitive speed droop or compensation settings; sticky steam/fuel valves; incompatible or uncompensated response characteristics between generators driven by different types of prime movers; incorrect set-up of companion governors on the same system [ such as mistakenly selecting more than one as isochronous, aka "the swing set" ]; trapped air in the hydraulic systems that drive a given unit's fuel valves / steam valves / wicket gates; and the list goes on . . .

Anyone else have thoughts?

 

[bacon4life]

Incorrect setup of Automatic Generation Control (AGC).

 

[dpc]

Real power or reactive power?

 

[crshears]

Hmmm; I would not have thought to describe reactive power output oscillations as hunting . . .

CR

"As iron sharpens iron, so one person sharpens another." [Proverbs 27:17, NIV]

 

[byrdj]

what type of prime mover?
(turbine - steam, combustion, hydro, wind. piston engine)
what type of load?
( massive interconnection grid or small island)
what type of governor?
(mechanical, anolog, or digital)
OEM?