A semi-isolated multi-input converter for hybrid PV/wind power charger system

Author

Cheng-Wei Chen ; Kun-Hung Chen ; Yaow-Ming Chen

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

fYear

2014

fDate

18-21 May 2014

Firstpage

3592

Lastpage

3597

Abstract

The objective of this paper is to propose a semi-isolated multi-input converter (S-MIC) for hybrid PV/wind power charger system which can simplify the power system, reduce the cost and deliver continuous power with higher reliability. The S-MIC consists of a forward-type isolated pulsating voltage source cell (I-PVSC) and a SEPIC prime converter that can realize the maximum power point tracking (MPPT) function for each PV/wind source. Due to the semi-isolated configuration, the proposed S-MIC can adopt PV/wind power sources with larger operation voltage difference. In this paper, the operational principle of the proposed S-MIC is explained and the small-signal ac model is developed. Computer simulations and prototype circuit experimental results are presented to verify the performance of the S-MIC.

Keywords

hybrid power systems; maximum power point trackers; photovoltaic power systems; power generation economics; power generation reliability; wind power plants; I-PVSC; MPPT; S-MIC; SEPIC prime converter; cost reduction; forward-type isolated pulsating voltage source cell; hybrid PV-wind power charger system; maximum power point tracking function; power system simplification; semi isolated multiinput converter; small-signal AC model; Capacitors; Integrated circuits; Maximum power point tracking (MPPT); multi-input converter (MIC); renewable energy; small-signal ac model;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE-ASIA), 2014 International

Conference_Location

Hiroshima

Type

conf

DOI

10.1109/IPEC.2014.6870014

Filename

6870014