A new ZVT Multi Input Converter for hybrid sources systems

摘要

Renewable energy sources such as wind and solar energy sources are unreliable in different weather conditions to provide constant output voltage. So the concurrent use of different input sources is inevitable to provide a constant load. The use of a Multi-Input Converters (MICs) instead of several separate converters can reduce the number of passive elements. Also it can save the cost and reduce the weight and the volume of the converter. In this paper, a Zero Voltage Transition (ZVT) dual input boost converter is proposed. In addition to the mentioned advantages for the multi-input converters, in the proposed converter only one auxiliary circuit is used for providing soft switching condition for all semiconductor elements and increasing the efficiency. The proposed converter theoretically is analyzed. Then, in order to show the validity of theoretical analysis, it is simulated by ORCAD. The simulation results confirmed the theoretical analysis. The efficiency comparison shows one percent improvement in comparison with hard switching counterpart.