What Is the Operating Principle of a Magnetic Generator

by Starlight Generator dieselgeneratortech

A permanent magnet generator is a power generation device that converts mechanical energy converted from thermal energy into electrical energy.

The biggest difference between a permanent magnet generator and an exciter generator is that its excitation field is generated by a permanent magnet. The permanent magnet is both a magnetic source and a component of the magnetic circuit in the motor. The magnetic properties of permanent magnets are not only related to the manufacturing process of the production plant, but also related to the shape and size of the permanent magnets, the capacity of the magnetizer and the magnetization method. The dispersion of specific performance data is very large. Moreover, the magnetic flux and magnetomotive force that the permanent magnet can provide in the motor also vary with the material properties, dimensions, and motor operating conditions of the rest of the magnetic circuit.

In addition, the magnetic circuit structure of the permanent magnet generator is various, the leakage magnetic circuit is very complicated and the leakage flux accounts for a large proportion, the ferromagnetic material portion is relatively easy to be saturated, and the magnetic permeability is nonlinear. These all increase the complexity of the electromagnetic calculation of the permanent magnet generator, so that the accuracy of the calculation results is lower than that of the electric excitation generator.

1.The structure is simple and the reliability is high. The permanent magnet generator eliminates the excitation winding, carbon brush and slip ring structure of the excitation generator. The structure of the whole machine is simple, and the excitation winding is easy to burn and break, the carbon brush and the slip ring structure are simple, and the whole structure is simple. The fault of the excitation generator winding is easy to burn, the wire is broken, the carbon brush and the slip ring are easy to wear, and the reliability is greatly improved.

2. Small size, light weight and high specific power.

3. Medium and low speed power generation performance is good.

4. Can significantly extend battery life and reduce battery maintenance.