Hi,
I am designing a vertical axis wind turbine electrical drivetrain, using a PMSM (permanent magnet synchronous machine) and since it is not self starting, I was planning to control the machine as a motor, once I decided to start it, then when it reach the desired speed I would like to release the control as motor and start controlling the speed and torque while absorbing power and charge a battery.
The configuration will be the following
PMSM <-> Driver <-> Battery
^
|
anemometer
.
Desired behavior
Stage one: PMSM not running
Stage two: wind blows, anemometer detect good wind, and send signal to the driver, to start spinning the machine
Stage three: once the machine spins at the desired speed, the driver goes into a "speed control mode", so that for each wind speed we have a specific rotational speed to maintain, and draw energy from the wind to charge the battery
The question is if the TI motor driver can also be used as generator controller.
Thanks for the attention,
Max