Title :
Research and implementation of a single phase stand-alone photovoltaic inverter with parallel topology
Author :
Han, Junliang ; Xu, Haibo ; Song, Qinghua ; Zheng, Shaozhong
Author_Institution :
Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
A system scheme of the stand-alone photovoltaic inverter based on parallel charge topology for the purpose of improving the energy conversion efficiency and optimizing the battery management was introduced. A novel circuit topology of the DC-AC inverter with the soft switching property using IGBTs and MOSFETs was presented. A modified P&O algorithm for better tracking performance with adaptive step length adjustment was proposed. And a comprehensive strategy for maximum power point tracking (MPPT) with the Constant Voltage Tracking (CVT) algorithm and the modified adaptive Perturbation and Observation (P&O) algorithm was developed. A prototype was implemented to very the feasibility of the proposed scheme.
Keywords :
DC-AC power convertors; MOSFET; battery management systems; insulated gate bipolar transistors; invertors; maximum power point trackers; photovoltaic power systems; CVT algorithm; DC-AC inverter; IGBT; MOSFET; MPPT; battery management; circuit topology; energy conversion efficiency; maximum power point tracking; parallel charge topology; single phase stand-alone photovoltaic inverter; soft switching property; strategy voltage tracking algorithm; Arrays; Batteries; Insulated gate bipolar transistors; Inverters; MOSFETs; Photovoltaic systems; Constant Voltage Tracking algorithm; MPPT; Perturbation and Observation algorithm; soft switching; stand-alone photovoltaic inverter;
Conference_Titel :
Electrical and Control Engineering (ICECE), 2011 International Conference on
Conference_Location :
Yichang
Print_ISBN :
978-1-4244-8162-0
DOI :
10.1109/ICECENG.2011.6057198
