Wow thanks, it makes a lot more sense now.
Is there a way of knowing the actual motor torque, or isn't that necessary? I mean so you can subtract the actual torque from the desired torque and build a control loop around it.
I'm a bit lost right now...
This is how I interpret things right now, based on this schematic: http://www.mathworks.nl/help/releases/R2013b/physmod/sps/powersys/ref/ac6_hl.gif
My input is the gaspedal, which has to be translated into a desired speed of the motor (0-100%), which, by comparison...
Oh yes I see.
So it is the rpm of the motor that needs to be controlled between 0 and a certain maximum, but how is that maximum determined? Is it a specification of the motor?
It is indeed an EV-type application.
So you're saying it makes more sense to say that the angle of the gaspedal will determine the amount of torque that's needed?
So I can map 0%-100% of the gaspedal to 0-maximum torque of the motor? Is that how it's done?
And the required torque is an input...
@waross, the motor type will be a PMSM, that's a given.
My question is about two things:
- How do I control the power of the motor, and not the speed as in pretty much every document I've found, even the Matlab documentation found here...
I've also added a simple schematic:
http://nl.tinypic.com/r/143dyx/8
The control block would need a few more inputs, and it would have to act on the difference between the desired power and the actual power.
The idea is to create the controller in Matlab Simulink first.
Hi guys,
I have a question regarding the control of a PMSM via an inverter.
The idea is to control the motor's power according to the gaspedal-angle. So let's say it's a 85kW motor, pushing the gaspedal 50% would mean a power demand of 42.5 kW.
I've been looking at control strategies and I've...
