Implementing Multilevel Inverters and Multiport DC-DC Converters for Microgrids

Abstract

Microgrids are in great demand owing to their ability to enhance generation power and distribute electricity to local loads. Microgrids include renewable energy sources, DC-DC converters, batteries, and DC-AC inverters. Multiport converters and multilevel inverters are proposed for the conversion process in this paper. The cost and size of the entire system are reduced when a multiport DC-DC converter is used. Furthermore, employing conventional inverters results in an output voltage that is unstable and unsynchronized with the power grid. A multilevel inverter using the Phase Lock Loop (PLL) method is utilized to solve this problem. The suggested approach generates a pure sinusoidal output voltage while saving money and space.