摘要
根据光伏电池的电气输出特性,建立了光伏电池的等效模型,在Boost电路中实现最大功率点跟踪控制.采用自适应变步长占空比干扰观察法,通过扰动步长的改变来获得较高的响应速度和稳态跟踪精度.仿真结果表明,该算法能够有效减小系统在最大功率比点的震荡,可以提高跟踪效率.
According to the electrical output characteristics of photovoltaic cells, the equivalent model of photovohaic cells is built, which achieves the maximum power point tracking control by boost circuit. Adaptive variable step duty cycle perturbation and observation is adopted, the step disturbance is changed to get higger response speed and better steady-state tracking accuracy. Simulation results show that the algorithm can effectively reduce the shock on the maximum power point and improve the tracking efficiency.
出处
《上海电力学院学报》
CAS
2011年第6期535-538,543,共5页
Journal of Shanghai University of Electric Power
基金
国家自然科学基金(61040013)
上海市教育委员会科研创新项目(09YZ347)
上海市教育委员会重点学科建设项目(J51303)
关键词
光伏阵列
最大功率点跟踪
自适应
占空比扰动
BOOST电路
photovoltaic array
maximum power point tracking
self-adapting
duty cycle perturbation
Boost circuit
