The 20kW Small Generator with Low-Speed Permanent Magnet Generator and Mechanical Brake represents an innovative solution for decentralized power generation, specifically engineered for locations with moderate wind resources.
| Quantity: | |
|---|---|
| Start-up wind speed | 2m/s | Working wind speed | 2.5-18m/s |
| Cut-in wind speed | 2.5m/s | Cut-out wind speed | 15m/s |
| Rotor diameter | 8m | Blade | 3pcs reinforced fiber glass |
| Blade length | 3.8m | Speed regulation & protection | Yawing + electromagnetic brake+pitch control |
| Rated voltage | AC 220/240/380v | Suggested tower height | 18m |
| Weight | 620kg | Rated RPM | 170r/m |
This compact yet powerful system features a low-speed permanent magnet generator that excels at capturing energy from low wind speeds, combined with an automatic windward angle adjustment mechanism for maximum efficiency. Operating effectively in wind speeds ranging from 2.5m/s to 18m/s, it delivers an annual energy output of up to 40,000 kWh in optimal conditions, making it ideal for rural electrification, off-grid communities, and small commercial applications. The integration of a reliable mechanical brake ensures safe operation during extreme weather, while its compact design minimizes installation space requirements. Factory-calibrated and ready for deployment, this generator provides a cost-effective pathway to energy independence.
At the heart of the system is a high-efficiency low-speed permanent magnet generator designed to operate effectively at lower rotational speeds, achieving 95.8% conversion efficiency even at partial loads. This specialized design enables energy capture starting from just 2.5m/s, outperforming conventional generators that typically require 3.5m/s or higher winds to begin production . The generator's brushless construction reduces maintenance needs and extends operational lifespan.
The turbine features an intelligent wind tracking system that continuously adjusts the rotor's orientation with ±2° accuracy in response to wind direction changes. This automatic adjustment increases energy capture by up to 12% compared to fixed-orientation systems, particularly in locations with variable wind patterns . The yaw mechanism operates silently and requires minimal power, with a self-lubricating design that ensures reliable operation in remote locations.
For enhanced safety, the generator incorporates a robust mechanical brake system that activates automatically when wind speeds exceed 18m/s or during system emergencies. This failsafe mechanism can stop rotor rotation within 5 seconds, protecting components from damage during extreme weather events . The brake system features manual override capabilities for maintenance purposes, ensuring safe service procedures.
Built for longevity in diverse environments, the generator features a weather-sealed enclosure with IP65 protection rating, corrosion-resistant aluminum alloy components, and reinforced fiberglass blades designed to withstand 20 years of fatigue cycles . Its compact design (10m rotor diameter, 22m total height) makes it suitable for installation in space-constrained locations while maintaining optimal energy capture capabilities.
Remote villages and rural communities utilize the 20kW generator to establish independent power systems, providing electricity for homes, schools, and community facilities where grid connection is impractical or cost-prohibitive.
Lodges, eco-resorts, and remote businesses deploy the generator to power operations independently of the grid, reducing reliance on diesel generators, lowering operational costs, and minimizing environmental impact.
Farmsteads and rural enterprises use the generator to power irrigation pumps, livestock facilities, and on-site processing equipment, achieving energy independence for critical agricultural operations.
In grid-connected areas prone to outages, the generator serves as a reliable backup power source, either standalone or integrated with battery storage, ensuring continuous electricity for essential systems during disruptions.
Our specialized low-speed permanent magnet generator is engineered with a higher pole count and optimized magnetic circuit design, enabling it to produce electricity at lower rotational speeds. This design allows energy capture starting at just 2.5m/s, whereas most conventional generators require 3.5m/s or higher winds. The aerodynamically optimized blades further enhance low-wind performance by maximizing torque at lower speeds .
The generator is designed for minimal maintenance needs, particularly suitable for remote installations. Recommended maintenance includes quarterly visual inspections, annual blade cleaning, and brake system checks every 6 months. The brushless generator and self-lubricating yaw system eliminate the need for regular mechanical servicing, with major component inspections only required every 5 years under normal operating conditions .
Yes, the generator is compatible with most battery storage systems through optional power conditioning equipment. When paired with batteries, it can provide 24/7 power availability, storing excess energy produced during high wind periods for use during calm conditions. Our technical team can provide system sizing recommendations to match specific storage requirements and load profiles .
With proper maintenance, the generator is designed for a 20-year service life. It comes with a comprehensive 5-year warranty covering manufacturing defects in all components, including the generator, blades, and control systems. The warranty includes technical support and replacement parts, with optional extended coverage available for up to 10 years .
