Electric Vehicle Controller with Etek Brushless DC Motor
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Hello,
I'm taking on a large project and any advice would be helpful. We are designing a controller for a Brushless 3-Phase DC Motor (http://www.marselectricllc.com/burnishermotor.html). It has a peak current of about 250A.
28V -48V
100A continuous
250A for 30 secs it think
The motor is an 8 pole machine. There are 8 magnets on the rotor, and 24 slots in the staotr, with a 3-phase "Y" connected stator winding. The Phase to Phase winding resistance is 0.013 ohms.There are three internal hall sensors, with the commutation set to 120 electrical degrees. Hall Sensors are 5-20 VDC input.
What are some safety feature that I should add?
so far we have planned for:
open throttle pot detection
fused battery supply
disable startup for non-zero throttle reading
over current protection ----- help needed
temperature monitors on power network, batteries, and controller.
We are also trying to implement regeneration with a 3 phase rectifier and ultra capacitor.
Any suggestions on batteries, capacitors or anything else. we have a sponsor, a nice budget, and a make controller.
Hall sensor output from approx 1 rotation
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