AC Motor Controller for 48V EV

Other Hardware Motors, Mechanics, Power and CNC
1

Good day,
an electric vehicle is to be designed for a university project, which is based on a self-developed motor controller. The motor is of the PMS type, has 5.5kW, a current of 127.1A and a voltage of 32.90V AC. An RLS encoder (sin/cos) is used as feedback.
The basic structure should be that a 10k potentiometer (accelerator pedal) is read in via an analog input and this is to be used for speed control.
A full bridge driver is to be operated via PWM via the digital outputs, which in turn operates my Mosfets/IGBTs and thus provides my output voltage.
At the moment I don't know how to include the motor feedback. I would also like to evaluate the KTY temperature sensor, which was installed internally in the engine.
A stop against the crowd must also be integrated.

Now I wanted to get some tips on how best to implement the program. I am currently studying electrical engineering. I am happy to attach the nameplate of the motor or other files.
I hope someone can give me some help.

Kind regards

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PMS type? What is that?

127.1 * 32.9 = 4181. How do you get 5.5 kW?

Provide a pointer to the specifications of the "RLS" encoder you are using.

Please provide a pointer to the specifications of the KTY sensor.

What does that mean?

1 Like
3

Thank you for your response.
The appendix contains the data sheet for the motor, the type plate from the motor and the designation from the manufacturer's feedback.
To implement the stop, I would then simply pull a pin to ground, that was what was meant in the last paragraph.
Unfortunately, I do not have an exact designation of the RLS encoder or the temperature sensor, only what the data sheet gives.
I still thank them for their help.

IMG-5186
IMG-51861920×2560 302 KB

Feedback Motor
Feedback Motor878×193 16.4 KB

PMS 120 - 48 VDC - 3000 rpm - ID 705_b - WB 402_b - EN.PDF (315,2 KB)

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