1. Good performance in medium and low speed power generation
In the case of the same power level, the permanent magnet generator is twice as high as the output power of the excitation generator at idle speed, that is, the excitation generator of the actual equal power level of the permanent magnet generator.
2. Simple structure and high reliability
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, which avoids the excitation winding of the excitation generator, which is easy to burn and break, the carbon brush and the slip ring are easy to wear. Failure, reliability is greatly improved.
3. Can significantly extend battery life and reduce battery maintenance
The main reason is that the permanent magnet generator adopts a switching type rectification and voltage regulation mode, which has high voltage regulation precision and good charging effect. Avoid shortened battery life caused by overcurrent charging. The initial rectified output of the permanent magnet generator uses a small current pulse to charge the battery, and the same charging current has better charging effect, thereby prolonging the service life of the battery.
4. Small size, light weight and high specific power
The adoption of the permanent magnet rotor structure makes the internal structure design of the generator very compact, and the volume and weight are greatly reduced. The simplification of the permanent magnet rotor structure also reduces the rotor moment of inertia, the practical speed increases, and the specific power (ie, the ratio of power to volume) reaches a very high value.
5. Self-starting regulator
No external excitation power supply is required. The generator can generate electricity as soon as it is rotated. When the battery is damaged, the car charging system can still work normally as long as the engine is running. If the car does not have electricity.
6. High efficiency
Permanent magnet generators are an energy-saving product. The permanent magnet rotor structure eliminates the excitation power required to generate the rotor magnetic field and the mechanical loss of friction between the carbon brush and the slip ring, so that the efficiency of the permanent magnet generator is greatly improved. Ordinary excitation generators have an average efficiency of only 45% to 55% in the range of speeds between 1500 rpm and 6000 rpm, while permanent magnet generators can be as high as 75% to 80%.
7. No radio interference
The permanent magnet generator has no carbon brush and no slip ring structure, which eliminates the radio interference caused by the friction between the carbon brush and the slip ring; eliminates the electric spark, and is especially suitable for working in an environment with a high degree of explosive danger, and also reduces the generator. Environmental temperature requirements.
8. It is especially suitable for working in harsh environments with high humidity or dust.