Title :
Design and Analysis of 6KW Photovoltaic Power System
Author :
Wang, Xinggui ; Lu, Yaowen
Author_Institution :
Dept. of Electr. & Inf. Eng., Lanzhou Univ. of Sci. & Technol., Lanzhou, China
Abstract :
In this article, the author designed and analyzed a 6KW photovoltaic power system. The system is composed of a photovoltaic array, a DC-DC converter, an accumulator battery and a DC-AC inverter connected to the load. Staged charging control strategy has been brought up. In the stage of quick charge, the photovoltaic will work with maximum power point tracking (MPPT). In the stage of float charge and overcharge, proportion integral control method is used to realize constant voltage charge, and the detected voltage can be compensated by temperature sampling. According to the results of experiment, the utilization of solar energy has been improved, and the life of the battery has been prolonged too.
Keywords :
invertors; maximum power point trackers; photovoltaic power systems; three-term control; voltage control; DC-AC inverter; DC-DC converter; MPPT; accumulator battery; charging control strategy; constant voltage charge; maximum power point tracking; photovoltaic array; photovoltaic power system; power 6 kW; proportion integral control method; Batteries; DC-DC power converters; Inverters; Photovoltaic systems; Pi control; Proportional control; Sampling methods; Solar power generation; Temperature control; Voltage control; MPPT; buck converter; constant voltage charge; photovoltaic power system;
Conference_Titel :
Computing, Control and Industrial Engineering (CCIE), 2010 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-0-7695-4026-9
DOI :
10.1109/CCIE.2010.45
