CCS/TMS320F28335: CCS/TMS320F28335

user6083218

Part Number: TMS320F28335
Other Parts Discussed in Thread: CONTROLSUITE

Tool/software: Code Composer Studio

The PMSM motor is controlled by the HVPM_Sensorless_2833x routine. When debugging to levev6, the speed3 module output speed3. Estimatedspeed is always 1 or 0.Which parameters should I adjust

over 4 years ago

0 Yanming Luo over 4 years ago

TI__Guru** 112840 points

1. Go back to the previous level, follow the application guide to run these levels step by step. Make sure the motor parameters are set correctly and the SMO works well to estimate the exact rotor position and speed in LEVEL3.

2. Tune the PI gains for speed in LEVEL6 if you can run other previous levels successfully.

0 user6083218 over 4 years ago in reply to Yanming Luo

Prodigy 240 points

The test of level1A is under way, please check svgen1. The waveform of Ta is triangle wave, not sine wave, which parameters are not set correctly?

0 Yanming Luo over 4 years ago in reply to user6083218

TI__Guru** 112840 points

Could you please follow the application report to run the project step by step? It seems like the configuration of the datalog is not correct. Let me know if you still have questions, we'd like to close the thread first.

The report can be found in the folder of the controlSUITE.

\ti\controlSUITE\development_kits\HVMotorCtrl+PfcKit_v2.1\HVPM_Sensorless_2833x\~Docs

0 user6083218 over 4 years ago in reply to Yanming Luo

Prodigy 240 points

I conducted debugging according to the method in the manual. Now I have two questions, please help to answer them

（1） how to calculate the parameters of the SMO module kslid, KSLF, Designed voltage gain constant in switching function, the Cut off frequency of low - pass filter

（2） Speed3.EstimatedSpeedRpm is always a negative number, how to adjust it

0 Yanming Luo over 4 years ago in reply to user6083218

TI__Guru** 112840 points

Q1. The answer could be found in the document in the folder of the controlSUITE as below.

ti\controlSUITE\libs\app_libs\motor_control\math_blocks\v4.3\~Docs

Q2. Tune the speed PI controller and eSMO parameters, follow the application report from build level 1 step by step, make sure that all the configurations are right as mentioned above.