局部阴影下光伏阵列各拓扑结构输出特性研究

doi:10.16180/j.cnki.issn1007-7820.2019.05.014

Abstract

Abstract:

Under the condition of partial shadow, solar panels of different topologies have different power output characteristics, which directly affect the output efficiency of the entire photovoltaic array. Based on the mathematical model of photovoltaic array under partial shadow conditions, the simulation models of 4*4 PV arrays of SP, TCT and BL were designed and built. In each case of partial shadows, the maximum output power of the three topologies was simulated and the simulation data was analyzed. The research showed that the maximum output power and topology of the PV array exhibited certain regularity in different shadow movement modes, which had certain reference significance for the design of photovoltaic panel topography.

Key words: partial shading, PV array, mathematical modeling, simulation, topology, maximum power output

CLC Number:

TN603

WANG Guixin,ZHENG Qi. Study on Output Characteristics of Topologies of Photovoltaic Arrays under Local Shadows[J].Electronic Science and Technology, 2019, 32(5): 75-80.

Figures/Tables 14

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References 17

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参数	数值
最大输出功率P_m	138.6 W
最大输出功率时输出电压V_m	18 V
最大输出功率时输出电流I_m	7.7 A
开路电压V_oc	34.2 V
短路电流I_sc	9.2 A

拓扑结构	V_mpp/V	I_mpp/A	P_m/W
SP	65.3	30.3	1 977.9
TCT	65.4	31.7	2 073.4
BL	65.8	30.4	2 002.9

拓扑结构	V_mpp/V	I_mpp/A	P_m/W
SP	64.9	28.4	1 842.2
TCT	64.8	29.3	1 899.5
BL	64.7	28.7	1 856.1

拓扑结构	V_mpp/V	I_mpp/A	P_m/W
SP	64.7	27.1	1 751.2
TCT	64.7	27.8	1 796.6
BL	64.5	27.3	1 762.6

拓扑结构	V_mpp/V	I_mpp/A	P_m/W
SP	64.1	25.2	1 616.5
TCT	64.1	25.2	1 616.5
BL	64.1	25.2	1 616.5

Study on Output Characteristics of Topologies of Photovoltaic Arrays under Local Shadows

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拓扑结构	V_mpp/V	I_mpp/A	P_m/W
SP	64.4	27.3	1 755.8
TCT	64.6	26.6	1 719.6
BL	64.4	26.9	1 730.9

拓扑结构	V_mpp/V	I_mpp/A	P_m/W
SP	64.2	24.9	1 600.9
TCT	64.2	24.9	1 600.9
BL	64.2	24.9	1 600.9