摘要
为充分利用太阳能,延长蓄电池使用寿命,提出了基于最大功率点跟踪(maximum power point tracking,MPPT)的蓄电池充电控制策略。MPPT控制采用改进的变步长扰动占空比控制算法。该策略将MPPT充电和阶段式充电相结合,保证了直流母线电压的稳定;给出了双向直流变换器的控制策略。仿真算例结果验证了该策略的有效性。
To fully utilize solar energy and increase service life of battery, a battery charging control strategy based on maximum power point tracking （MPPT） is proposed, and the improved variable-step perturbation duty ratio control algorithm is applied to MPPT control. The proposed control strategy combines MPPT charging with stage-style charging to ensure the voltage stability of DC bus, and for this purpose a control strategy for bi-directional DC-DC converter is given. Finally, a simulation example is given to demonstrate the effectiveness of proposed control strategy.
出处
《电网技术》
EI
CSCD
北大核心
2014年第2期347-351,共5页
Power System Technology
基金
国家重点基础研究发展计划项目(973项目)(2009CB219706)~~
关键词
蓄电池充电
光伏系统
直流母线
最大功率点跟踪
battery charging
photovoltaic system
DC bus
maximum power point tracking
