Design of a maximum power tracking system for wind-energy-conversion applications

被引:550
作者
Koutroulis, E [1 ]
Kalaitzakis, K [1 ]
机构
[1] Tech Univ Crete, Dept Elect & Comp Engn, GR-73100 Khania, Greece
关键词
buck converter; maximum power point tracking (MPPT); microcontroller; variable speed; wind generator (WG);
D O I
10.1109/TIE.2006.870658
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
A wind-generator (WG). maximum-power-point-tracking (MPPT) system is presented, consisting of a high-efficiency buck-type dc/dc converter and a microcontroller-based control unit running the MPPT function. The advantages of the proposed MPPT method are that no knowledge of the WG optimal power characteristic or measurement of the wind speed is required and the WG operates at a variable speed. Thus, the system features higher reliability, lower complexity and cost, and less mechanical stress of the WG. Experimental results of the proposed system indicate near-optimal WG output power, increased by 11%-50% compared to a WG directly connected via a rectifier to the battery bank. Thus, better exploitation of the available wind energy is achieved, especially under low wind speeds.
引用
收藏
页码:486 / 494
页数:9
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