How Does Modulation Ratio Affect Voltage and Frequency in Power Systems?

AI Thread Summary
The discussion focuses on the relationship between modulation ratio and frequency in power systems, specifically in the context of amplitude modulation (AM) and frequency modulation (FM). It clarifies that for AM, there is no direct relationship between modulation percentage and modulating frequency; changing the frequency only shifts the sidebands without affecting modulation depth. The conversation also hints at the relevance of modulation schemes in applications like inverters feeding AC motors. Participants emphasize the need for specificity regarding the type of modulation being discussed. Understanding these nuances is crucial for effective application in power systems.
aswathymohan
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Does anyone have any idea about modulation ratio of voltage and modulation frequency in power systems?What is the relation between between two?
 
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You need to be more specific. AM? FM? Are you referring to % of modulation in AM? Modulation index in FM? Incidentally, there are a lot of other modulation schemes that are based on and similar to AM and FM. Referring to one of these?
 
It is related to Amplitude Modulation
 
Then there is no relationship between the two. 100% modulation at a modulating frequency of 100 Hz is the same as 100% modulation at 1000 Hz. All it does is move the sidebands from 100 Hz away from the carrier to 1000 Hz away from the carrier. Changing the modulating frequency will not change the percentage of modulation.
 
Is the question about an inverter feeding an AC electrical motor?
 
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