Sequential power flow simulation of integrated dynamic wireless power transfer systems

In view of the advance of dynamic wireless power transfer (DWPT) for electric vehicles (EVs) charging, integrated DWPT systems are conceivable to emerge. However, quasi-continuous and time-varying DWPT charging loads bring large challenges to the power flow analysis of integrated DWPT systems. In this paper, a sequential load model is proposed to describe the temporal dependency of DWPT charging demands. Furthermore, on the basis of back/forward sweep method, a new power flow analysis method is addressed to deal with quasi-continuous and time-varying DWPT charging loads. Then a daylong sequential power flow simulation is conducted on a test system. Simulation results show that the fluctuation of branch flows varies significantly. Adequate power and energy managements are necessary to integrated DWPT systems.

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