Namangan Institute of Engineering and Technology
nammti.uz
10.25.2023
Pg.72
Power Company, near new Milford, USA. the water was pumped from Housatonic river to 230
feet high upper reservoir. subsequently, the pumped-storage projects have been adopted by many
countries.
The advent of variable speed technology paved the way for operation at higher efficiencies
and to cover wider head variations. the reversible units operate in
synchronism with the grid
frequency in the generation mode. the pump is designed to operate at its peak efficiency at rated
frequency (50 Hz in India) in the pumping mode. The pumped-storage scheme even out the load
variation on thermal units and are also helpful in auto control of grid
frequency, both in generation
and pumping modes.[2]
The president of Uzbekistan, attending the briefing, pointed out the high potential of the
hydropower sector and instructed to substantially increase its capacities. To this end, 250
prospective sites for the construction of
micro hydropower plants have been selected. According
to calculations, new micro hydroelectric power stations will be able to generate 675 million kWh of
electricity and save 200 million cubic meters of gas per year. In the hydropower sector over the past
few years, 27 projects worth $500 million have been implemented, adding capacity of 260 MW. The
cumulative
capacity of stations in the Uzbek hydro energy system has exceeded 2,000 MW. [3-4]
Picture 2. Principal components of micro-hydropower system
I propose to build changed micro-hydropower station to small rivulet. My project is adopted
to flat surface not slope. It is shown following picture.
If we want to build a micro-hydroelectric
power plant on a stream, first we measure the highest water level of the stream, build a way that
reaches 60%/100%, place a generator, and create a separate way for the remaining 40%. As a result,
the decrease and increase of the water level up to 40% will not affect the energy production of our
generator.
