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SVPWM Overmodulation

Question asked by Derek Cook on Oct 22, 2018
Latest reply on Oct 26, 2018 by Derek Cook

Hello, 

 

I see that there are overmodulation states in the SVPWM module. I am having problems at 200V DC Bus holding 1155RPM. I am losing sync because it seems that I do not have enough voltage. It looks like at 200V DC bus I would only need 124Vac to drive the motor at 1155 RPM. 

 

I want to be sure that the SVPWM is overmodulating when the voltage gets low. How can I tell this? It looks like my modulation index is never going above 1. Will this go above 1? To 1.15? 

 

Is there any set up required to overmodulate?

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