Is it possible to have 12 brusless motor run at same speed with only 1 radio control? If so…how to?
Hi @12X
If you plug the output of a single channel of the RC receiver to 12 different channels of motor controllers, you will drive them at similar speed. Now, if you want them to run at the exact same speed, you would need some kind of closed loop control where the speed of each motor is compared and adjusted.
Thank you for your help…is there a way I can see in real time the speed rpm of each motor? Like a sensor with digital digit? ?
Well, depending on the motor, you could add an encoder which would send a logic on/off signal whenever the motor reaches a certain position. You send that pulse to a microcontroller and measure the time it takes to do a full revolution.
Why do you need to have 12 motors running at the same speed, by the way?
I am working on energy wind turbine. Each brushless motor represent the wind energy attach each of them to different gear ratio with mini alternator.
I was able to run 12 engine at same speed with gears attach to them but now it get more complicated…here is what I need to do
Now that they run at same speed I need to have them go on/off individuly depending on the drag force of the alternator. More drag force more engine need to perform. Unfortunatly it is not 1 to 1 engine alternator ratio since they don’t have the same gear ratio.
Any idea on how I can switch on & off the engine depending on the drag force?