MPPT for PV systems appended with centripetal attribute based on improved PSO algorithm

doi:10.3969/j.issn.2097-0706.2022.03.011

Abstract

Abstract:

In the study on the flocking behavior of birds,it is observed that birds fly randomly at the initial stage,but the peripheral ones show the tendency to move to the core of the flock as time goes.Combining this attribute with the traditional particle swarm algorithm,the improved PSO algorithm is of better global exploitation and local exploration capacities.The performances of different algorithms are measured and compared based on the PV array modeling under various illumination conditions.The results demonstrate that the proposed algorithm can find the global maximum power point quickly and stably under partial shading and changing illumination conditions, and solve the problem that traditional maximum power point tracking （MPPT）are prone to falling into local optima.

Key words: photovoltaic power generation, improved PSO algorithm, MPPT, computer simulation

CLC Number:

TK51

LI Xujiong, SUN Linhua, YANG Guoming. MPPT for PV systems appended with centripetal attribute based on improved PSO algorithm[J]. Integrated Intelligent Energy, 2022, 44(3): 70-76.

Figures/Tables 14

Fig.1

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Table 1

Table 2

Table 3

Parameters of PSO algorithm

参数	ω	c₁	c₂	$Δ$ R₀	F_n
数值	0.4	2	3	10%	5

Table 3

Fig.7

Table 4

Fig.8

Fig.9

Table 5

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PV 布置	阴影模式与功率峰值/W	跟踪方法	功率/ W	收敛时间/s	跟踪效率/%	能量跟踪因子
7s6p	P1	推荐方法	399.60	1.56	99.99	0.967 8
	399.6（GMPP）	PSO	399.60	2.14	99.98	0.914 6
	356.9（LMPP）	P&O	319.80	2.04	80.03	0.796 1
	325.9（LMPP）	FF	399.60	2.58	99.75	0.930 6
	319.8（LMPP）	DPSO	399.60	2.25	98.56	0.932 8
	314.2（LMPP）	ABC	397.90	2.70	99.58	0.919 1
	247.8（LMPP）	INC	314.20	0.36	78.62	0.765 6
3s6p	P2	推荐方法	32.71	1.82	99.98	0.968 0
	32.7（GMPP）	PSO	32.71	3.05	99.98	0.908 6
	20.4（LMPP）	P&O	32.71	2.02	99.98	0.942 6
		FF	32.71	2.18	99.78	0.910 6
		DPSO	32.71	2.25	99.78	0.941 1
		ABC	32.71	2.10	99.56	0.913 9
		INC	32.71	0.38	99.78	0.957 2

项目	数值
最大功率（P_max）/W	20
开路电压（V_oc）/V	21.0
短路电流（I_sc）/A	1.28
最大功率电压（V_mp）/V	17.2
最大功率电流（I_mp）/A	1.20

试验装置	规格
微控制器	PIC16F876A
PV模块	Innova solar IN-15P
IGBT模块	VID-04
电容/mF	470.0
电感/mH	1.5
电感内阻/Ω	0.358
负载电阻/Ω	100.000

PV 布置	阴影模式与功率峰值/W	跟踪方法	功率/ W	收敛时间/s	跟踪效率/%	能量跟踪因子
4s4p	P3	推荐方法	56.25	1.90	99.98	0.958 3
	56.25（GMPP）	PSO	56.25	3.80	99.98	0.902 8
	47.50（LMPP）	P&O	47.50	0.57	84.44	0.837 8
	P4	推荐方法	47.50	2.54	99.98	0.944 9
	47.50（GMPP）	PSO	47.50	2.90	98.56	0.924 6
	27.50（LMPP）	P&O	47.50	0.10	100.00	0.987 8
3s6p	P5	推荐方法	33.75	1.80	99.99	0.958 5
	33.75（GMPP）	PSO	33.75	2.62	99.98	0.908 2
	23.75（LMPP）	P&O	32.71	1.52	100.00	0.875 7
	P6	推荐方法	48.75	1.70	99.99	0.956 2
	48.75（GMPP）	PSO	48.75	4.00	99.99	0.897 3
	36.85（LMPP）	P&O	36.85	0.10	75.58	0.755 8