Hello,

I am trying to model a linear actuator in simscape matlab but have been quite unsuccessful. The way I want the model to work is to apply a load at the end of the lead screw and set a speed at which the motor runs and from that information measure a current that is drawn by the motor.

My main issue is that I am unable to make the BLDC (https://uk.mathworks.com/help/sps/ref/bldc.html) drive my gears. I am using a BLDC current controller with PWM generation to power the gates of a converter that should then power the BLDC. I have attached the part of the circuit I think is the problem but honestly I don’t really know if that is the problem. What I think the problem is that the converter is not getting the correct pulse to drive which is most likely cause by the way i have set up my BLDC controller. I will also attach the whole circuit.

Many thanks in advance.Hello,

I am trying to model a linear actuator in simscape matlab but have been quite unsuccessful. The way I want the model to work is to apply a load at the end of the lead screw and set a speed at which the motor runs and from that information measure a current that is drawn by the motor.

My main issue is that I am unable to make the BLDC (https://uk.mathworks.com/help/sps/ref/bldc.html) drive my gears. I am using a BLDC current controller with PWM generation to power the gates of a converter that should then power the BLDC. I have attached the part of the circuit I think is the problem but honestly I don’t really know if that is the problem. What I think the problem is that the converter is not getting the correct pulse to drive which is most likely cause by the way i have set up my BLDC controller. I will also attach the whole circuit.

Many thanks in advance. Hello,

I am trying to model a linear actuator in simscape matlab but have been quite unsuccessful. The way I want the model to work is to apply a load at the end of the lead screw and set a speed at which the motor runs and from that information measure a current that is drawn by the motor.

My main issue is that I am unable to make the BLDC (https://uk.mathworks.com/help/sps/ref/bldc.html) drive my gears. I am using a BLDC current controller with PWM generation to power the gates of a converter that should then power the BLDC. I have attached the part of the circuit I think is the problem but honestly I don’t really know if that is the problem. What I think the problem is that the converter is not getting the correct pulse to drive which is most likely cause by the way i have set up my BLDC controller. I will also attach the whole circuit.

Many thanks in advance. simscape, simulink, model, electric_motor_control MATLAB Answers — New Questions

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