CCS/TMS320F28335: PWM nonproperly Ta,Tb,Ualpha,UBeta

user5307035

Intellectual 750 points

Part Number: TMS320F28335
Other Parts Discussed in Thread: CONTROLSUITE

Tool/software: Code Composer Studio

Dear sir;

I study on C:\ti\controlSUITE\development_kits\HVMotorCtrl+PfcKit_v2.1\HVPM_Sensorless_2833x

I read C:\ti\controlSUITE\development_kits\HVMotorCtrl+PfcKit_v2.1\HVPM_Sensorless_2833x\~Docs

I set the BUILDLEVEL to LEVEL1

I debug this project and I monitored graphs of Ta,Tb, Svgen.Ualpha, Svgen.Ubeta. I attached the figures as shown at below.

The figures is not true. (very different according to ....HVPM_Sensorless_2833x\~Docs )

Ta:

Tb:

Svge.Ualpha:

Svgen.Ubeta:

over 7 years ago

0 Nima Eskandari over 7 years ago

TI__Guru 52040 points

I'm going to look at this and get back to you!

0 user5307035 over 7 years ago in reply to Nima Eskandari

Intellectual 750 points

HVPM_Sensorless_2833x.rar

I didnot make any modification. I attached the all codes of program in .rar

Maybe the problem is ramp generator. Because

rg1.Freg=0.149975 constant,

rg1.StepAngleMax=0.02000 constant,

rg1.Angle= non constant (non properly sawtooth)

rg1.out= non constant

Another question:

I want 50Hz sawtooth at out of ramp generator. For this hz, what should be value of SpeedRef?

0 Nima Eskandari over 7 years ago in reply to user5307035

TI__Guru 52040 points

I need some more information.

What hardware are you using?

Launchpad/Control Card/Custom board?
Any booster packs?
Any other hardware?

0 user5307035 over 7 years ago in reply to Nima Eskandari

Intellectual 750 points

I have custom board.

I attached used all codes of program at above message (C:\ti\controlSUITE\development_kits\HVMotorCtrl+PfcKit_v2.1\HVPM_Sensorless_2833x).

At this example for build level=1

we watch the values of RG_MACRO,RC_MACRO ,IPARK_MACRO ,SVGEN_MACRO. These are inside values.

0 user5307035 over 7 years ago in reply to user5307035

Intellectual 750 points

Dear sir;

I solved the problem. Thank you for help.

The problem is controlsuit files. Ti should check the files and fix it.

I want 50Hz sawtooth at out of ramp generator. For this hz, what should be value of SpeedRef?

0 Nima Eskandari over 7 years ago in reply to user5307035

TI__Guru 52040 points

Which files had issues? Can you point these out?

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CCS/TMS320F28335: PWM nonproperly Ta,Tb,Ualpha,UBeta