TMS320F28027: gMotorVars Vs

zhou qicheng

Part Number: TMS320F28027
Other Parts Discussed in Thread: MOTORWARE

Tool/software:

Hello, the motor is accelerating at gMotorVars Vs We have reached the set upper limit of 0.56, but the speed continues to rise. This gMotorVars Does Vs reaching the upper limit mean that the phase current has reached the set value of USER_MOTOR_maX_CURRENT? During motor acceleration, achieve gMotorVars Is the upper limit of Vs an abnormal phenomenon? How should I make a judgment

over 1 year ago

0 Yanming Luo over 1 year ago

TI__Guru** 116090 points

Which lab are you using? An what control mode are you using? Speed close loop? Or torque control?

Yes, you should limit the maximum current to limit the speed if you are using torque control loop.

0 zhou qicheng over 1 year ago in reply to Yanming Luo

Intellectual 790 points

Hello, what is the main function of phase voltage in the observer

D:\ti\motorware\motorware_1_01_00_18\sw\solutions\instaspin_foc\boards\boostxldrv8305_revA\f28x\f2802xF\projects\ccs\proj_lab10a， Speed close loop

0 Yanming Luo over 1 year ago in reply to zhou qicheng

TI__Guru** 116090 points

It's included in the FAST observer function in ctrl.c or ctrl.h. You don't need to change anything for this, just need to configure the ADC to sample the three-phase voltage in ADC read function in hal.h.

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TMS320F28027: gMotorVars Vs