Hybrid front end interface DC-DC converter with ANFIS based control of EMS system
In this paper, the voltage regulation problem associated with mode switching in low voltage hybrid system has been addressed .This paper presents a hybrid zero voltage-switching (ZVS) isolated front end interface dc–dc converter which combines a boost half bridge (BHB) cell and a full-bridge (FB) cell, so that two different type of power sources, i.e., both current fed and voltage fed, can be combined togetherly by the proposed soft switched converter for various applications, such as pv cell and wind energy. By using two high-frequency transformers and a combined leg of switches, number of switches and gate driver circuits can be minimized. By phase-shift control, the converter can achieve ZVS turn-on of active switches and zero-current switching (ZCS) turn-off of diodes. In this paper, derivation, analysis, and design of the proposed converter are presented. Intelligent Adaptive Neuro-Fuzzy Inference System (ANFIS) based supervisory EMS(Energy Management System) controls the charge/ discharge of the energy storage system (ESS) when there is voltage changes to cooperate with ANFISPID in point of common coupling( PCC) voltage regulation.
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