PROJECT TITLE :

Modular Parallel Multi-Inverter System for High-Power Inductive Power Transfer

ABSTRACT:

An inverter-based parallel multi-inverter system is proposed to deliver high and extendable power levels for inductive power transfer (IPT) systems. Paralleled inverters can be used to meet a wide range of power needs, allowing for considerable versatility. Parallel inverter switching-driver signals use a master-slave architecture in which one is the leader and the others are followers. Despite the master-slave design, the suggested circuit architecture offers inherent robustness due to the equality of each modular inverter's hardware configuration. This means that if the required parameters are satisfied, an inverter's output phase (current lagging corresponding voltage) is lower than the average of all inverters' output phases when its output voltage lags behind others, and vice versa. PI controllers are built to accomplish output voltage phase synchronisation across all inverters using this approach. There was an IPT prototype developed and tested using the planned parallel multi-inverter system with three inverters. Experimental results reveal that the parallel multi-inverter system presented in this paper is capable of suppressing circulating currents and synchronising phases. At a receiving power of 35.1 kW, the greatest dc-dc efficiency was 94 percent. A Matlab/Simulink file illustrating phase synchronisation control is included in this work.