Linear Permanent Magnet Generators – II
Still many considerations are to be taken into account to get the desired efficiency. If the rotor speed is low i.e if the frequency is low then a larger construction is required which increases the overall cost. Hence newer designs are required which increases the efficiency along with smaller designs. The linear permanent magnet can be designed in a tubular form as well as a flat structure depending upon the application. Leakage is limited in flat type generators due to symmetrical structure.
There are several factors which are important to the output of the generator of this type. Some of them are as follows:
· Number of turns
· Area of magnetic surface
· Revolutions/second
· Tesla of the magnet ( flux intensity)
· Number of poles
Harnessing the ocean energy has been escalating since the developments of newer technologies like the permanent magnet alternators. Due to a lack of gearboxes, the maintenance has become easy and inexpensive. The efficiency has increased which has made the overall projects profitable and attractive for people to invest in.
