Axial Flux Coreless Generator Coreless Permanent Magnet Generator Power Output

Product Description:

The GREEF NEW ENERGY GDG series features a disc-type permanent magnet generator that operates without an iron core. In this design, the spindle and rotor are arranged in a stacked disc formation, where the stator remains fixed at the center while the rotor rotates on both sides. Notably, the spindle contains only windings and lacks an iron core.

Both the stator and rotor adopt a flat disc structure, utilizing axial air gap magnetic flux. They are positioned alternately along the axial direction. The disc generator’s compact axial length paired with its large diameter allows for the creation of multi-pole configurations. This results in a high power-to-mass ratio, low operational speed, easy start at low wind speeds, and a small overall footprint.

Additional advantages of this generator include low energy consumption, lightweight construction, a compact structure, and high efficiency. Due to its rotor being mounted on a vertical axis wind turbine, it offers minimal resistance to wind, making it an ideal choice for direct-drive vertical axis wind turbines.

The GDG series disc-type permanent magnet generators come in two variants: the outer rotor and the inner rotor types. In the outer rotor version, the shaft remains stationary while the casing rotates, and the cable is routed through the center of the shaft. Conversely, the inner rotor type features a rotating shaft with a fixed casing, and the cable is routed outside the casing.

Features:

The design eliminates hysteresis and gear notch effects, resulting in an exceptionally low starting torque of less than 0.1 N·m. This ensures smooth and easy startup performance.

By avoiding the use of a core, mechanical resistance and energy losses are minimized. The “Precise Coil” technology further enhances efficiency, enabling optimal energy conversion with minimal waste.

The use of rare earth permanent magnets featuring multiple poles and a small air gap contributes to a high power density and substantial output power. This sophisticated magnetic setup ensures robust performance without compromise.

Featuring gearless direct drive and brushless construction, the system operates without the need for regular maintenance, reducing downtime and increasing reliability.

A special structural design achieves a higher power-to-volume and power-to-weight ratio, yielding a product lifespan up to eight times longer than traditional generators.

The technology enables higher utilization rates for wind turbines operating in low wind speed conditions, maximizing energy capture when wind is limited.

The aluminum alloy outer frame combined with a specially designed internal structure ensures excellent heat dissipation, maintaining optimal operating temperatures and extending component life.

Technical Parameters:

Applications:

Axial flux coreless generators demonstrate significant potential in the field of wind power generation. Particularly in megawatt-class wind turbines, these generators can greatly enhance the output density, thereby improving the overall efficiency of wind energy production. The design eliminates the need for an iron core, which helps reduce iron losses and hysteresis losses, resulting in a more efficient generator.

Beyond wind power, axial flux coreless generators are widely utilized in various renewable energy applications, including both solar and wind power systems. Their capability for efficient energy conversion combined with reliable performance makes them an excellent choice for sustainable energy solutions. These characteristics help optimize the output and reliability of renewable energy setups.

In addition to renewable energy, axial flux coreless generators are suitable for a broad range of industrial uses that demand efficient, lightweight, and dependable power supplies. For instance, they can serve as backup or auxiliary power sources, providing stable and consistent power support to critical industrial machinery and equipment.

The flexible structure of axial flux ironless core generators allows for customization to meet specific customer requirements. Parameters such as generator power, rotational speed, and output voltage can be tailored to accommodate the diverse needs of various application scenarios, ensuring optimal performance and adaptability.

Customization:

Greef offers comprehensive product customization services for the Coreless Permanent Magnet Generator, model number GDG, originating from Qingdao. Our generators are CE certified and designed for durability with a lifetime of up to 20 years. We specialize in both multi-poles inner-rotor generators and outer-rotor generators to meet diverse energy generation needs.

Each unit features high-quality NSK bearings ensuring reliable performance and low maintenance requirements due to the absence of iron core losses. The generator operates efficiently at speeds ranging from 60 to 550 RPM with a low start torque of less than 0.03 N/M, making it ideal for various applications.

Our minimum order quantity is 1 set, with prices negotiable to accommodate specific project requirements. Packaging is carefully handled with foam and plywooden cases to ensure safe delivery. The typical delivery time is 25 working days, and we accept multiple payment methods including T/T, Western Union, MoneyGram, and L/C.

Greef's supply ability guarantees timely production and shipment, providing customers with reliable coreless permanent magnet generators tailored to their needs, whether you require an inner-rotor or outer-rotor configuration with multi-poles for enhanced magnetic performance.

Packing and Shipping:

Product Packaging:

The Coreless Permanent Magnet Generator is carefully packaged to ensure maximum protection during transit. Each unit is securely placed in a custom-fit foam insert to prevent movement and damage. The generator is then enclosed in a sturdy, double-walled cardboard box with clear labeling indicating handling instructions and product specifications.

Additional protective measures such as anti-static bags and moisture-resistant wrapping are used to safeguard the internal components. The packaging is designed to be eco-friendly and recyclable, minimizing environmental impact.

Shipping:

We offer reliable shipping options worldwide, with delivery times varying based on destination. Each shipment is tracked with a unique tracking number provided to the customer upon dispatch. Our logistics partners ensure timely and safe delivery of the Coreless Permanent Magnet Generator.

For large orders, we provide palletized shipping with appropriate securing methods to prevent damage. Customers are advised to inspect the package upon receipt and report any damages immediately for prompt resolution.