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Current source converters are the state of art in high power applications featuring several advantages such the simplicity in the topology, the regeneration capability and the capacity to produce sinusoidal input currents. This converter features a very weak damped LC filter in the input, whose resonance frequency can be excited by the control and harmonics of the mains. In this work a new predictive...
An LC filter is normally required at the input of a PWM current source rectifier (CSR), to assist the commutation of switching devices and to mitigate the line current harmonics. To dampen the LC resonance introduced by the input filter, an effective damping method is proposed in this paper by using a hybrid combination of the virtual harmonic resistive damper and a three-step control signal compensator...
The PWM current-source rectifier (CSR) is becoming a preferred choice to provide a DC current source for DC loads or current source fed drives. However the control of the resonance of the input LC filter is one of the main challenges. To dampen the LC resonance with minimum control and implementation efforts, a two-step Posicast controller for modulation signal shaping is first examined, which can...
The PWM current-source rectifier (CSR) is becoming a preferred choice to provide a DC current source for DC loads or current source fed drives. However the control of the resonance of the input LC filter is one of the main challenges. To dampen the LC resonance with minimum control and implementation efforts, a two-step Posicast controller for modulation signal shaping is first examined, which can...
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