Variation in head and/or flow

[dimitar]

Hello everyone,

can anyone tell me if they have done any studies into the short term

variation of head and/or flow rate in any of their MHP schemes (I'm thinking of

a

minute to minute variation as opposed to day to day)?

I'm concerned with the torque variation on the turbine and

particularly the electrical power variation of a grid connected induction

machine

(connected to a strong grid). Will there only be a substantial

variation with adjustment of gate and/or nozzle control?

Many thanks in anticipation,

D. Partenov

MHP? Acronyms without an explanation are silly. This is a global resource so defining them is extremely important. Next time I use th BFH on any story posts containing undefined acronyms. While I know you mean Micro Hydro Project, or at least I think its "Project" many will not.

[Flux]

Stop worrying, If the induction generator is big enough it will hold the thing. Gate and nozzle adjustment for micro hydro is only a long term efficiency raiser. The generator will have to take instantaneous variations.

There is not likely to be big short term variations in water flow.

Flux