Abstract:

The paper presents a study of a multiphase converter for charging stations for electric vehicles. The converter consists of parallel operating units based on high-frequency resonant inverters. Simulation models of multiphase converters have been developed. Simulation studies have been conducted to demonstrate the advantages and disadvantages of these systems. The impact of the asymmetry of the individual units on the pulsations of the charging current is investigated, as well as the possibilities for regulating the value of the charging current by changing the parameters of one or several units. The research has shown the benefits of a five-unit topology. It has a lower ripple coefficient and a higher frequency compared to the six-unit topology. The results presented herein provide information on the effect of asymmetry in five and six-link topologies and can be used to define the requirements for converter control systems for electric vehicle charging stations or energy storage systems.