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This paper is mainly focus on bidirectional on-board charger with high performance and low cost. With SiC MOSFET, it is possible to make the on-board charger high efficiency, high power density and light weight. However, the price of the SiC MOSFET is higher than Si based MOSFET. Therefore, a high performance on-board charger with a small number of SiC MOSFET is the key factor to limit the cost of...
A complete control system of smart microgrid is proposed in this paper, in order to realize the smooth mode transfer of the grid-connected mode (GTM) and islanding mode (ILM). In the system, every DG unit will work as the voltage source and use the same control method of output voltage, whatever in GTM or ILM. The only difference of GTM and ILM is how to regulate of the reference voltage of the voltage...
This paper analyzes the voltage-source-inverter parallel system as a multi-input & multi-output system, and proposes the circulating-current mathematical model, the steady-state model and small-signal model of parallel system. Then the phasor models of the circulating-current and the circulating-current power are proposed. Subsequently, the mathematical model of traditional droop control is built...
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