摘要
在扰动步长判断条件中引入不完全微分,与微分结合,有效减小传统扰动观察法扰动步长判断函数中完全微分带来的高频(突变)干扰,基于不完全微分实现步长自适应调整,提出基于不完全微分的MPPT控制算法。在Matlab/Simulink环境下的仿真与实验平台上所得实验结果表明,所提出算法能在不影响光伏系统最大功率跟踪速度的前提下,有效减小最大功率点附近的功率振荡,提高MPPT控制的跟踪精度。
The incomplete differential was introduced to combine with differential in the disturbance step size judge condition, which reduced effectively the high frequency （mutation）interference caused by complete differential in disturbance step size judge function of traditional perturb＆observe （P＆O） method, and the MPPT control algorithm in view of incomplete differential was put forward based on adaptive step size adjustment realized by incomplete differential. The experimental results acquired in simulation and experiment platform under Matlab/Simulink environment show that algorithm which doesn＇ t affect tracking speed of maximum power of PV power system can effectively reduce the power oscillation near the maximum power point and improve tracking accuracy of MPPT control.
作者
党选举
杨阳
姜辉
李晶晶
Dang Xuanju Yang Yang Jiang Hui Li Jingjing(School of Electronic and Automation , Guilin University of Electronic Technology, Guilin 541004, China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2016年第12期3022-3029,共8页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(61263013)
广西信息科学实验中心(20130110)
广西自然科学基金(2016GXNSFDA380001
2015GXNSFAA139297)
