EcoTork™: Large Permanent Magnet Generators

Permanent magnet generators are gaining momentum as a key sub-system in the wind power industry. Our EcoTork™ pm generator platform is scalable from 5kW to more than one MW output at very low RPM’s, making it the largest and broadest-range available. EcoTork’s modular approach and unique flux-path design allow us to cost-effectively build very large diameter pancake-style generator-alternators that perform at low speeds. Another benefit to the modular design is field serviceability, even atop an 80+ meter tower.

Slow rotation, as in a wind turbine rotor, is normally geared up by more than 100x using a massive gearbox before coupling to the generator. This gear train adds weight, drag, complexity, cost and reliability issues to any system. In addition, most systems operate at a synchronous speed, further limiting the efficiency of the power conversion over a range of conditions.

Features and Benefits of EcoTork™:

• Modular design ensures a generator tailored to your application
• High voltage output at slow speeds
• Optimized materials usage for a cost-effective solution
• Proprietary stator design offers off-the chart short circuit protection and thermal management properties
• High efficiencies
• Low cogging torque (torque ripple)

Permanent Magnet Generator – Modular Design Configured to Your Exact Requirements

We design and manufacture permanent magnet generators from 25KW to 250KW to fit your exact needs. Rather than design a limited number of units at pre-set power outputs and design standards we have chosen the flexibility of delivering exactly what you need for your unique turbine design, sighting conditions, and power company interface criteria.
We know that each project is unique in application, performance, reliability, and the investment budget. We optimize our solution for your project. You own the rights to your permanent magnet design and any unique manufacturing instructions. Although this requires some minor non-recurring engineering to create a unique design, the payback can be tremendous in long term performance. To most engineering teams, this is exactly what they want, our team partnering with them to create the very best generator to compliment the rest of their design.

Please Let Us Know How We Can Help with Your Permanent Magnet Generator Needs

Do you have the need to efficiently convert slow-speed rotation (between 10 and 1000 RPM) into usable electricity? Please Discover more about the new wave of PM generators.

Do you offer raw materials technologies such as copper, superconductor materials, magnets, bearings, or potentially collaborative systems such as power switching electronics, transformers, or renewable energy mechanical systems? Please contact us.

Why EcoTork PM Generators?

Renewable TM Energy Workhorses

Coupled to a grid-tie inverter, EcoTork generators can supply nonstop AC power to any home, business, or power grid. Best of all, the source power can vary in both speed and torque based on the resources available. In a wind turbine for example, the wind may vary and cause a rotor speed change. With a PM generator maximum power conversion can be achieved at any speed, and the supplied electricity will be clean and fault-free even during load changes. All this with no wear items: no brushes or slip rings!

From our modular design to our industry first automated coil production process, rest assured you will have the best generator for your application. Our proprietary slotless design affords minimal torque ripple (aka ‘cogging’) and maximum efficiency through the virtual elimination of all eddy and parasitic stray currents.

If you are developing renewable energy solutions in the 500kW and under range and need a reliable generator tailored to your application, EcoTork is right for you.

*Specifications subject to change. Different voltages speeds and configurations are available.

Download the EcoTork Specs or Contact Us today to learn more about this revolutionary technology.