摘要
采用BUCK-BOOST变换器的拓扑结构,对占空比调制,实现最大功率点跟踪控制。当占空比变量ΔD≥0.03时,采用遗传算法计算,并使系统误差降低到1%以下;当占空比变量ΔD<0.03时,采用爬山法计算。利用仿真和风机模型实验平台,对设计方案进行性能分析和结果验证。验证结果表明,该设计可以较好地提高功率跟踪的动态和稳态特性,更好实现更宽范围的最大功率点的跟踪。
For the permanent magnet direct-drive wind power system, a novel MPPT strategy based on duty cycle control of Boost-Buck converter was adopted in order to achieve maximum power point tracking, when relatively large changes in the duty cycle（ △D ≥0.03 ） , genetic algorithm was used, the systematic error is reduced to below 1%. When relatively small changes in the duty cycle（ △D 〈 0.03 ） , hill climbing method was applied to trace it. Through Matlab/simulink and wind turbine model experiment platform, the outstanding performance can be analysis and the results can be verify. This method can improve the power to track the dynamic and steady state characteristics and achieve a wider range of maximum power point tracking.
出处
《江南大学学报（自然科学版）》
CAS
2012年第5期519-522,共4页
Joural of Jiangnan University (Natural Science Edition)
基金
中央高校基本科研业务费专项项目(JUSRP11022)
无锡市工业装备节能与控制技术重点实验室专项项目(CMES0915)
