VSI/CSI fed Induction motor Drive analysis using software.

Voltage stiff and current stiff inverters are used in high power drives. Both hte CSI and VSI are controlled by constant on-time square wave signals.

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The VSI with GTO in the low and medium power range is nowadays more and more replaced by V/F and field oriented controlled drives using IGBT's.

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The induction machie is directly coupled to the inverter on the left side and directly coupled to the mechanical load on the right side. The parameters for the induction machine are its nameplate parameters, such as nominal power, current, cos-phi and pole pair number.

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