How do VFD Switching Frequencies Affect Harmonic Distortion?

VFD switching frequency refers to the rate at which the DC bus voltage is switched on and off during the pulse width modulation (PWM) process.

Harmonic distortion occurs when a #VFD converts power from an AC to a variable frequency output to a motor. The harmonics occur as the transistors rapidly turn on and off at a rapid speed. Harmonic distortion in a drive can be reduced by increasing the speed the at which the IGBTs operate to get a cleaner sine wave for better motor operation.
#PulseWidthModulation #PWM #VariableFrequencyDrives

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[bishantkumar]

Thank you so much. So useful video and precise

[belalhossen]

Thank you very much this video is very helpful for motor drives

[filippetkovic]

the best explanation ever crazy good thanks sir!

[rafaelc]

Came for the class, stayed for the teacher

[GN_lab]

Tank you, nice work. But some peapole advise, don't go above 4khz carrier frequency, to avoid damage of motor winding insulation. What do you think about this effect?

[Elecnova]

Thanks for the information. Did you face the problem for the resonance ? how to fix this problem?

[Clay]

Makes me want to learn sonar and transmit more data through echos like a transponder frequency

[bishantkumar]

Please make a video on use of Choke in drive ? How it reduces harmonics !!

[manojkale]

Just want to know that is there is disadvantages by using IGBT VFD drive, or any damage to 3 phase as borewell pump.

[prashantpant]

Thanks for the information. I have a question, If we are increasing the switching frequency will it not effect the output voltage ? Since output voltage is rms of the pulses that we get from the switching of IGBTs.

[SureshBabu-iumm]

V/f theory is application is there here?

[hamidou]

Hello bro amazing work please I have a problem in my work In the induction machine i did give him a pwm when i implemented the machine didn’t work I give him fm (50*50) carrier and dspace work te 0.001

[AliRaza-twre]

Can you make the video about the error trouble shooting . error no(E.SEE) keb 6

[raghavendaranj]

why are we multiplying the input voltage with root 2 value

[shubh]

sorry for the silly question, may i know what 'n' denotes in the harmonics formula?

[qzorn]

Gee, is the vfd tech headed towards a vfd RF-generator-transmitter, radio-motor-receiver, or Tesla-motor-theory?

[doanster]

Most impressive backward writing skills!

[Rasobenn]

I prefer 196khz switching frequency much better