Evaluation of Multifrequency Power Electronic Converters: Concept, Architectures, and Realization

Abstract

There exists two well known types of power transfer ac or dc. Power transfer at multiple frequencies has not yet gained much attention. This paper aims at bringing out such topologies, which are capable of integrating different electrical power sources (ac or dc) irrespective of its frequency of generation, form a multi-frequency bus, transmit power over a single line and extract/convert them at the load side. This leads to the definition of unified utility/grid concept. For this, the paper presents more insight into three possible multi-frequency converter topologies with renewable energy sources (RESs)/battery integration. The proposed topologies work on the principle of orthogonal power transfer. Furthermore, power transfer at multiple frequencies shows an effective way of decoupling the individual sources of the system. Finally, the feasibility of transferring power at multiple frequencies is validated experimentally and the results are discussed herein along with its potential benefits.

Cooperative Active Power Management in Multifrequency Microgrid With an Energy Storage System Based on Distance of Source to Load

“…The basic design and concept of load side converter are conferred in [10], where converter behaves like a power filter to create frequency selective power transmission in MF system. The hardware realization of load converter is presented in [18] and how the consumer can choose any frequency available power from the MF bus is explained. The architecture and converters of an MFMG are presented in [8].…”