摘要
为了解决光伏发电系统占空比扰动法最大功率跟踪(MPPT)控制响应慢、易产生功率振荡等问题,提出了一种基于模糊理论的占空比扰动法的MPPT控制方法。通过深入分析传统占空比扰动法,将模糊理论引入其中,确立了模糊控制器的输入输出变量、隶属度函数及模糊控制器的推理规则。建立基于模糊理论占空比扰动法的MPPT仿真模型,通过该仿真模型验证了标准工况下MPPT跟踪情况。仿真结果验证了该方法具有良好的快速响应性,同时又能够消除功率振荡。
In order to solve the problem that the maximum power tracking(MPPT)control of PV power generation system is slow,and the power oscillation is easy to produce,this paper presents a MPPT control method based on the duty cycle disturbance of fuzzy theory.The fuzzy theory is introduced into the duty cycle perturbation method,and the input and output variables,membership functions and inference rules of the fuzzy controller are established.A MPPT simulation model based on fuzzy theory duty ratio perturbation method is established,and the MPPT tracking condition under standard working condition is verified by the simulation model.Simulation results show that the proposed method has good response and can eliminate power oscillation.
作者
朱作滨
黄绍平
李振兴
ZHU Zuo-bin;HUANG Shao-ping;LI Zhen-xing(Hunan Provincial Key Laboratory of Wind Generator and Its Control,Hunan Institute of Engineering,Xiangtan 411100,China)
出处
《控制工程》
CSCD
北大核心
2020年第7期1299-1304,共6页
Control Engineering of China
基金
湖南省高校创新平台基金项目(18K092)。
关键词
光伏发电
占空比扰动
MPPT
模糊控制
Photovoltaic power generation
duty cycle disturbance
MPPT
fuzzy control
