Journal of Circuits Systems and Computers · 1995 · 16 citations · 0 references
EngineeringEnergy EfficiencyPower DevicesPower CircuitPower Electronics ConverterElectric Power ConversionPower System ApplicationsPower Electronic SystemsPower ElectronicsRipple CurrentsHigh Performance ConvertersPower SemiconductorsPower SystemsPower Electronic DevicesElectrical EngineeringPower Semiconductor DeviceComputer EngineeringPower DevicePower InverterPower Converters
Recently, there is an increased demand for high power, high performance converters for power system applications, motor drives, etc. The low switching frequency of the existing semiconductor power devices poses a severe limitation that can be overcome by the use of interconnected smaller power converters (multiconverter) with appropriate control. This paper gives an overview of the state of the art of multiconverters, followed by a comparison based on analytically calculated values of the spectra, RMS and peak values of their ripple currents, and the peak values of the transformer's flux. Special attention has been given to show that the transformerless parallel connection of converters is feasible and offers features such as simplicity, gracefully degrading operating, high reliability, easy expandability and easy maintenance.