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This paper proposes a grid-tied power conditioning system for the fuel cell, which consists of a three-phase current-fed dc-dc converter and a 3-phase inverter. The three-phase current-fed dc-dc converter boosts the fuel cell voltage of 26-48V up to 400V, using the zero voltage switching and three-phase DC power transfer capability. The operation of proposed power conditioning system was verified...
This paper proposes a load simulator with power-recovery capability. The load simulator consists of a converter-inverter set with a DSP controller for system control and PWM pulse generation. The converter operates as a universal load to model the linear load and the non-linear load, while the inverter feeds the energy back to the power source with harmonic compensation. The operation of proposed...
This paper proposes a novel configuration of a unified power quality conditioner (UPQC) which can be connected to the distribution system without series injection transformers. The operation of the proposed system was analyzed through simulations with PSCAD/EMTDC and experimental works with a scaled hardware model, assuming that the UPQC is connected with the 22.9-kV distribution line. The proposed...
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