Wave Energy Linear Motor/Generator

This project reports on how to generate electricity from ocean wave by using permanent
magnet linear generator. The objectives of this project are to design and build a small
scale linear generator powered by ocean wave energy that able to generate at least 1 kW
of electricity. It is not easy to harness wave energy and convert it into electricity in large
amounts. So, the studies for this project include finding information and knowledge
related to the topic besides developing skill through enquiry and literature review. Linear
electric generators are linear motion electromagnetic devices that transform short stroke
oscillatory motion mechanical energy into electrical energy. The linear generator in this
project consists of a stator and a translator as its major part. In linear generator, electrical
power is generated simply by forced relative movement of linear generator to its stator.
The linear generator will oscillates with the wave up and down to cut electromagnetic
flux inside the stator. Thus, the cuts of magnetic flux will result as electricity. To become
a successful project, several things need to be reviewed like literature review on linear
generator, design and development of the generator, experiment of prototype before
gaining result and correct data. By varying the frequency of the wave energy, the cuts of
magnetic flux depends on the cycle movement and the speed of the translator into the
stator. Then, the line voltage and line current was measured to calculate the total output
power that has been generating by linear generator. The results show that the output
voltage and hence not unexpectedly, the output power, depends to a large extent on the
translator speeds. As a result, the wave energy linear generator ouly generates a small
amount of output power that not achieves the objective of this project.