What is a Permanent Magnet Generator?

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A permanent magnet generator is an electrical machine that converts mechanical energy into electrical energy. This type of generator can operate based on two principles:

• Direct Current Generator (with brushes and a rotating collector).

• Alternating Current Generator (polyphase and synchronous), where the magnetic fields of the stator and rotor rotate at the same speed.

 

Differences Between Direct Current and Alternating Current Generators

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1. Direct Current Generator:

   • Inductor: Located in the stator with an assembly of permanent magnets.

   • Less common today due to the presence of sliding electrical contacts, which require more maintenance.

2. Alternating Current Generator:

   • Inductor: Located in the rotor with permanent magnets.

   • Preferred for its reliability, simplified maintenance, and high performance.

Alternators, which operate on alternating current, are much more widely used due to their many advantages.

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Advantages of Permanent Magnet Alternating Current Generators

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• Increased Reliability: Absence of sliding electrical contacts reduces maintenance needs.

• Superior Energy Performance:

  • Higher Mass and Volume Torque: More torque per unit of weight or volume.

  • Higher Mass and Volume Power: Optimized energy production.

• Versatility: Suitable for various industrial and energy applications.

• Durability: Ideal for demanding environments due to its robust design.

 

Applications of Permanent Magnet Generators

 

Permanent magnet generators, particularly those using alternating current, are used in various sectors:

• Renewable Energy Production:

  • Wind turbines.

  • Hydro turbines.

• Autonomous Systems: Power generation for isolated sites or embedded systems.

• Industrial Applications: Powering equipment that requires a reliable and efficient energy source.

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ALXION Permanent Magnet Generators

 

ALXION manufactures three-phase permanent magnet generators that offer optimal performance for:

• Industrial applications.

• Renewable energy projects.

• Systems requiring high energy efficiency and maximum reliability.

 

Conclusion

 

Permanent magnet generators, especially those using alternating current, provide a reliable and high-performance solution for converting mechanical energy into electrical energy. Due to their energy efficiency, reliability, and versatility, they have become essential in both industrial and renewable energy sectors. Discover ALXION’s solutions to meet your specific needs.

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• Permanent Magnet ALXION Generators: Discover our three-phase models.