Voltage controlled current source inverters

The authors present a fully functional voltage controlled current source inverter (VC-CSI) three-phase inverter that can closely track a given voltage reference signal and also provide various performance improvements. The adaptive SPWM control method has been used to force the output voltage to track the respective sinusoidal reference signals. The combination yields a general-purpose three-phase balanced voltage supply with precise frequency and voltage amplitude control. Moreover, it has the inherent regeneration and short circuit protection features associated with current source inverters. Key analysis/design results and performance features are verified on a 2 kVA experimental inverter-load prototype system.<<ETX>>

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