| Today,photovoltaic solar power generation technology has become more mature in the industrialization of the road,with the help of DSP technology,MCU technology MPPT program has gradually become intelligent and stable.However,continuing to optimize the existing MPPT technology and achieve better tracking characteristics is the industry's eternal pursuit.For the photovoltaic industry,the merits of MPPT technology to a large extent determine the photovoltaic power generation system under the conditions of change efficiency.This paper mainly studies the maximum power point control scheme of the existing photovoltaic power generation system,discusses the non-linear phenomenon of the photovoltaic cell,expatiates the representation of the photovoltaic cell model in detail,and analyzes the output characteristics of the battery.On this basis,the different characteristics of the series PV cell array under shading conditions are further analyzed,and the causes and characteristics of the multi-peak phenomenon are pointed out.Based on the multi-peak phenomenon of the array,the bottleneck encountered by the traditional algorithm in the tracking of the maximum power point is analyzed.This paper compares the advantages,disadvantages and characteristics of intelligent algorithms and traditional algorithms in different occasions,and analyzes the advantages and characteristics of hybrid algorithm based on the excellent characteristics of ant colony algorithm and variable step perturbation observation method.Based on the performance of ant colony algorithm and variable step perturbation algorithm,the hybrid algorithm is designed and the principle and strategy of the model and algorithm of hybrid algorithm are described.Then,based on the hybrid algorithm,the realistic and harsh tracking performance simulation is carried out,and the performance and effect of the algorithm are evaluated intuitively.Finally,the paper analyzes the work and research direction of the hybrid algorithm. |
PDF Full Text Request