ScottyUk and jraef,
Our company has experience with 100kW flywheels for energy storage. We have been contracted to look at producing a 500kW / 125kWh flywheel module with aggressive cost goals. We are currently funded for developing a smaller prototype that will prove the concepts required for...
I'm trying to learn more about how a bi-directional 10-20MW energy storage facility might be fielded and connected to high voltage. What is the most economical way to connect many 480V devices to the transmission grid.
It appears that this would normally be done with a substation transformer...
Our company is involved in developing a large flywheel for utility energy storage services. We are used to testing smaller 100kW DC units using facility load banks. We are trying to learn how to test regenerative power at 1 MW at the AC level.
Can someone enlighten me as to what equipment or...
Thanks FreddyNurk, I contacted ABB and learned of two products that may do the job. They have a product that was orignially developed by Vectek called a PCS100 that can perform grid-tie functions for multiple devices ganged together at the DC bus. They also make sophisticated drives such as...
Our company is looking at building a large flywheel for grid frequency regulation services. I'm interested in learning which companies are typically involved in designing, manufacturing and installing power electronics for grid energy storage for 1 MW to 20 MW power levels. I'm interested in...
Here is some performance data to help clarify the design:
The max motor speed is 6400 rpm, and the normal operating range for continuous 500kW charge/discharge is between 40% to 100% speed. My preliminary design was performed using Infolytica MotorSolve software and it shows a peak line-line...
I'm looking to refine a motor design for a 500kW Ferrite PMSM motor, and then build my first prototypes. Ferrite magnets are required to achieve extremely low rotor loss as this motor must power a large flywheel in a vacuum. Can anyone point me to a motor manufacturer capable of taking on such...
