一种输出参数可调的ADM-MPPT方法  

Researchon an ADMGMPPT method with adjustable output parameters

作　　者：孔德彭[1] 孙玉婷 董琦 KONG Depeng;SUN Yuting;DONG Qi(College of Education(College of Vocational and Technical Education),Zhejiang University of Technology,Hangzhou 310023,China)

机构地区：[1]浙江工业大学教育学院(职业技术教育学院),浙江杭州310023

出　　处：《浙江工业大学学报》2025年第2期171-178,196,共9页Journal of Zhejiang University of Technology

基　　金：全国教育科学规划一般项目(BEA190116)。

摘　　要：光伏发电系统的发电效率与最大功率点的捕捉与跟踪技术密切相关。当辐照度、温度及其他外部环境变化时,光伏电池的开路电压、短路电流和最大功率点电压及电流也随之变化。为提高光伏发电效率,寻求光伏电池的最优工作状态,大多数的最大功率点跟踪(Maximum power point tracking,MPPT)主要作用于DC-DC变换器的输入端,该方式在MPPT时会受到变换器损耗的影响,降低最大功率点寻优精度。基于Boost电路,在DC-DC变换器的输出端搭建MPPT系统,通过调节输出电压参数来实现对效果变化的控制,且在MPPT系统引入了导纳微分法(Admittance differentiation method,ADM),实现对MPPT控制器的重构,实施中搭建不同的仿真模型,再借助仿真模型达到对ADM的修正与优化,综合论证该方法具有更优的指标和更好的效果。The power generation efficiency of photovoltaic power generation systems is closely related to the capture and tracking technology of the maximum power point.When Irradiance,temperature and other external environment change,the open circuit voltage,short circuit current,maximum power point voltage and current of photovoltaic cell also change accordingly.To improve the efficiency of photovoltaic power generation systems and seek the optimal working state of photovoltaic cells,most maximum power point tracking(MPPT)mainly acts on the input terminal of DC-DC converters,which results in the maximum power point affected by converter losses during tracking.Based on the Boost circuit,an MPPT system is built at the output of the DC-DC converter to control the effect changes by adjusting the output voltage parameters.The admittance differentiation method(ADM)is introduced into the MPPT system to reconstruct the MPPT controller.The different simulation models are built during implementation processing and these simulation models are used to adjust and optimize ADM.The comprehensive demonstration results indicate that using this method can achieve better indicators and better results.

关 键 词：光伏发电 导纳微分法 MPPT BOOST电路 

分 类 号：TM85[电气工程—高电压与绝缘技术]