EEE 3230

POWER SYSTEM ANALYSIS

Lecture 2: Renewable Energy

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Sezai Taskin, Ph.D.

sezai.taskin@cbu.edu.tr

Hydroelectricity4

Generation of electricity based on water power is called hydroelectricity.

Water potential or kinetic energy can be used to this purpose due to water height or flow respectively.

Hydroelectric plants:

Require no fuel have low operation/maintenance costs negligible contribution to air pollution allow parallel operation like navigation, flood control, irrigation, etc.

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Hydroelectric power plant representation

There are 6 fundamental components in this type of power plant:

dam, reservoir, penstock, turbine, generator and governor.

Othersecondary elements are:

machine room, internal pipelines, and oscillation tanks

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Generated electric energy of an impoundment power plant depends on some key parameters like:

the water behind the dam,

reservoir capacity,

flow rate of the water inside the penstock,

efficiencies of penstock, turbine, and generator

Hydroelectric power plant parameters

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Turbine types

Some known reaction turbine designs are the Francis and Kaplan turbines, being the first suitable for mid to high heads (80m – 500m) and the last one for low heads (1.5m – 80m)

(a) Impulse Turbine (b) Reaction turbine

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The hydroelectric power flow from the reservoir to the generator.

Power flow of a hydroelectric plant

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