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Compiler/TMDSHVMTRINSPIN: TMDSHVMTRINSPIN

kevin lambert
Prodigy 20 points

Part Number: TMDSHVMTRINSPIN
Other Parts Discussed in Thread: MOTORWARE

Tool/software: TI C/C++ Compiler

I have a BLDC 3 phase 266 vdc motor attached directly to a 3600 rpm generator and I wish to run it with TMDSHVMTRINSPIN dirver. Will this driver work at that speed sensorless (I only need maximum torque at 3600 rpm because of the generator output is at that speed) or do I need other hard ware or soft ware that is not included in this driver package. I will power the driver with a 500 vdc power supply but from my research of your driver it will only handle 350 vdc and I am not sure that is enough to achieve the rpm needed. Please let me know what direction that will work for this application, thanks!

  • 0
    TI__Guru** 117160 points
    You may download the motorWare as the following link, and follow the lab guide to identify and spin the motor.
    www.ti.com/.../motorware

    As you mentioned, the TMDSHVMTRINSPIN can support 1.5kW/350VDC, so the maximum speed depends on the motor spec., such as rated power, rated speed, input voltage and adding load on the motor.
  • 0 in reply to Yanming Luo
    Prodigy 20 points

    I see your point. This motor is not intended to be used in this manner so maybe the best way to approach this project is to purchase this kit and experiment with it. At 266 vdc and perhaps 3 amps this motor might not work for this generator. I am not sure at this point how a load will affect it either even if I can achieve 3600 rpm. I do know that maximum torque will be necessary to handle any load. What do you think?     

     

  • 0 in reply to kevin lambert
    TI__Guru** 117160 points

    As mentioned above. That depends on the specification of the motor, the kit can support the maximum current up to 10A, but you need to make sure the rated voltage and maximum voltage of the motor can be supported by the kit. The BEMF constant will limit the maximum speed if the dc bus voltage is not enough for the motor.