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In order to solve the problem of high voltage conversion ratio between dc bus and energy storage unit, a novel bidirectional three-phase dc/dc converter applicable to high-power condition is proposed in this paper. With the new PWM strategy and inherent ability of increasing voltage conversion ratio of Y–Δ connected transformer, the voltage conversion ratio is doubled. With the new PWM strategy, the...
This paper proposes a power management control scheme for hybrid fuel cell power system. The hybrid fuel cell system consists of a fuel cell, an isolated unidirectional converter, a bi-directional converter, an inverter, and a battery. The fuel cell powers the steady state energy and the battery compensates the dynamic energy. They need to work together to ensure the system operates with high efficiency...
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