Abstract
At present the use of wind energy in Indonesia is still relatively low, but has enormous potential. One reason is because the average wind speed in the territory of Indonesia is classified as low wind speed, which ranges from 3 m / s to 5 m / s making it difficult to produce electrical energy on a large scale. However, the wind potential in Indonesia is available almost all year long, making it possible to develop small-scale power generation systems. Innovations in modifying windmills need to be developed so that in conditions of low wind speeds can produce electrical energy.
 In this research, a prototype was developed by designing a vertical axis windmill power plant model Savonius using a permanent magnet generator, which can produce optimal electrical energy by utilizing relatively low wind speeds.From the generator test it was found that with a rotor rotation of 50 rpm up to 500 rpm can produce an electrical voltage of 0.02V to 10V and an electric current of 0.60A to 4.53A.
Highlights
Renewable energy can be used as an alternative solution for the use of fuel oil
One reason is because the average wind speed in the territory of Indonesia is classified as low wind speed, which ranges from 3 m / s to 5 m / s making it difficult to produce electrical energy on a large scale
Measurement of electrical power Testing of wind power plants is conducted to determine the power produced by windmills and the characteristics of the minimum voltage and maximum voltage. This test is done by measuring the output voltage without the load of a permanent magnet generator to the rotor generator rotation
Summary
Renewable energy can be used as an alternative solution for the use of fuel oil. This energy assessment is absolutely necessary to prevent an energy crisis. Through the study of energy conversion machines, renewable energy in Indonesia can be optimally utilized for energy needs in supporting sustainable development and human needs in the energy sector. One of the uses of renewable energy which currently has great potential to be developed is wind energy. This energy is clean energy and in its production process does not pollute the environment
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