Vertically mounted small air gap device featuring aluminium body copper wire and Nd Fe B components ideal for power generation systems

Product Description:

The GREEF NEW ENERGY GDG series disc type permanent magnet generator without an iron core represents an innovative design in the field of permanent magnet generators. In this configuration, the spindle and rotor are arranged in a disc shape, with the stator fixed centrally, while the rotor rotates on both sides. Uniquely, the spindle contains only windings and excludes any iron core material.

Both the stator and rotor adopt a flat disc structure, utilizing axial air gap magnetic flux. These components are arranged alternately along the axial direction, allowing for a compact configuration. The generator’s design features a short axial length combined with a large diameter, which facilitates the creation of multi-pole structures. This design achieves a high power-to-mass ratio, supports low operational speeds, and enables startup at low wind speeds.

Additionally, the GDG series offers several advantages including a small size, low energy consumption, lightweight construction, and a compact structure. With its high efficiency and durable build, it is ideally suited for direct-drive vertical axis wind turbines. The rotor, mounted on the vertical axis, creates minimal wind resistance, enhancing the turbine’s overall performance.

The GDG series disc type permanent magnet generators come in two main variants: the outer rotor type and the inner rotor type. In the outer rotor design, the rotor shaft rotates while the casing remains stationary, and the cable exits through the middle of the shaft. Conversely, in the inner rotor design, the casing is fixed, the shaft rotates, and the cable is routed outside the casing.

Features:

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

By removing the core, mechanical resistance and energy loss are significantly reduced. This coreless design enhances overall efficiency, allowing for superior performance across various operating conditions.

The implementation of "Precise Coil" technology further optimizes the system, contributing to improved power output and reliability.

The use of rare earth permanent magnets with multiple poles, combined with a small air gap, results in a high power density and substantial output power. This configuration maximizes the generator's capability while maintaining compactness.

Featuring a gearless direct drive system with brushless design, this generator requires no maintenance. This not only reduces operational costs but also increases overall system reliability.

A special structural design achieves a higher power-to-volume and power-to-weight ratio. The generator boasts a lifespan eight times longer than traditional models, ensuring dependable performance over many years.

This technology is specifically tailored to improve the performance of wind turbines in low wind speed environments, maximizing energy capture and utilization.

The aluminum alloy outer frame, along with a specially engineered internal structure, provides exceptional heat dissipation. This helps maintain optimal operating temperatures and enhances the durability of the system.

Technical Parameters:

Applications:

Axial flux coreless generators demonstrate significant potential in the field of wind power generation. This is especially true for megawatt-class wind turbines, where these generators can greatly enhance output density, thereby improving the overall efficiency of wind energy production.

One of the key advantages of these generators is the absence of an iron core, which effectively reduces iron losses and hysteresis losses. This reduction leads to a more efficient operation compared to traditional generators.

Beyond wind power, axial flux coreless generators find wide application in various renewable energy systems, including solar and wind power setups. Their ability to convert energy efficiently, coupled with their reliable performance, makes them well-suited for integration into renewable energy generation technologies.

In addition to renewable energy, these generators are utilized in diverse industrial sectors that demand power sources which are efficient, lightweight, and dependable. For instance, they can serve as backup or auxiliary power units, providing stable electrical support to essential industrial machinery and equipment.

The flexible design of the axial flux coreless generator allows for customization tailored to specific customer requirements. Parameters such as power output, operating speed, and voltage levels can be adjusted, enabling the generator to meet a broad range of application needs and scenarios.

Customization:

Greef offers comprehensive product customization services for the GDG model Axial Flux Coreless Permanent Magnet Generator, originating from Qingdao. Our coreless generator features a rare earth permanent magnet rotor designed with multi-poles to ensure high efficiency and low start torque, ideal for various industrial applications.

Certified with CE, our generator guarantees quality and reliability. We provide flexible pricing options with a minimum order quantity of 1 set, and all products are carefully packaged using foam and plywood cases to ensure safe delivery.

With a rated power range from 300W to 100kW and operating speeds between 60-550 RPM, the insulated resistance is maintained at a minimum of 100Mohm (501V DC) for enhanced durability. Our delivery time is approximately 25 working days.

We accept various payment terms including T/T, Western Union, MoneyGram, and L/C to facilitate smooth transactions. Greef is committed to supplying high-quality axial flux coreless generators with customizable options to meet your specific needs.

Packing and Shipping:

Product Packaging:

The Coreless Permanent Magnet Generator is carefully packaged to ensure maximum protection during transit. Each unit is securely wrapped in anti-static foam and placed inside a sturdy, custom-fitted cardboard box. The box is then sealed with tamper-evident tape and labeled with handling instructions and product details. For added safety, multiple units may be packed into a reinforced outer carton with cushioning materials to prevent movement and impact damage.

Shipping:

We offer reliable shipping options to deliver the Coreless Permanent Magnet Generator promptly and safely to your location. Shipping is available via standard courier services, freight, or express delivery depending on your preference and order size. All shipments are tracked and insured to provide peace of mind. Delivery times vary based on destination but typically range from 3 to 10 business days. Customers will receive a tracking number once the order has been dispatched.