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This paper presents a 3-phase, voltage-sourced, 36-pulse converter that draws almost sinusoidal currents. The converter results from the combination of a series connected, 12-pulse, voltage-sourced rectifier with a passive voltage injection circuit and a bi-directional switch. The voltage injection circuit uses a single-phase rectifier bridge and a single-phase transformer. Both the voltage injection...
A control strategy is described to drive an active injector for multi-pulse rectifiers operating on variable frequency aerospace supplies. The injection technique utilises a single low-rated active device that carries approximately 2.9% of the load current, and this may be driven with either low-frequency pulses or high-frequency, pulse-width modulation to produce 24-pulse operation or multi-level...
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