大规模光伏接入受端电网方案综合决策

doi:10.6040/j.issn.1672-3961.0.2019.029

Abstract

Abstract:

This paper proposed a comprehensive decision-making method based on fuzzy analytic hierarchy process (FAHP) and technique for order preference by similarity to ideal solution (TOPSIS) for large-scale photovoltaic system integrated to receiving-end power grid. A decision-making evaluation index system was established to quantify the indexes of grid-connection schemes, in which main influence factors considered were security and stability, intermittence of PV, economy, and extendibility. Taking into account the fuzziness of the preferences of decision-makers, the FAHP algorithm was applied to determine the weights of indexes. The TOPSIS algorithm was adopted to make the multi-objective decision between schemes to get the TOPSIS solution as the best grid-connection scheme. The case study on Shandong power grid demonstrated the whole process of the comprehensive decision-making method and indicated that the method could reflect the merits and demerits of different schemes visually, with which we could get the reasonable decision results.

Key words: photovoltaic system, comprehensive decision-making, FAHP, TOPSIS

CLC Number:

TM715

Xiaoming LIU,Yini CONG,Wenbo LI,Yutian LIU. Comprehensive decision-making method for large-scale photovoltaic system integrated to receiving-end power grid[J].Journal of Shandong University(Engineering Science), 2019, 49(4): 115-122.

Figures/Tables 6

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References 17

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指标	方案二	方案三	方案四	方案五
A₁₁/s	0.260	0.282	0.278	0.272
A₂₁/%	32.31	32.95	32.89	32.01
A₂₂/%	38.51	38.11	38.10	38.21
B₁₁	13	16	18	9
B₁₂/pu	2.27	3.84	4.94	2.26
B₂₁/%	1.25	0.63	0.72	0.67
C₁₁/万元	8 914	14 579	13 157	9 861
C₂₁/%	1.62	1.75	1.73	1.41
C₂₂/%	41.15	38.67	39.47	39.99
D₁/GW	1.88	2.06	2.05	2.11

准则层	一级指标	二级指标	总排序权重
A(0.348)	A₁(0.6)	A₁₁(1)	0.208 80
	A₂(0.4)	A₂₁(0.7)	0.097 44
	A₂(0.4)	A₂₂(0.3)	0.041 76
B(0.348)	B₁(0.6)	B₁₁(0.7)	0.146 16
		B₁₂(0.3)	0.062 64
	B₂(0.4)	B₂₁(1)	0.139 20
C(0.196)	C₁(0.6)	C₁₁(1)	0.117 60
	C₂(0.4)	C₂₁(0.8)	0.062 72
	C₂(0.4)	C₂₂(0.2)	0.015 68
D(0.108)	D₁(1)		0.108 00

Comprehensive decision-making method for large-scale photovoltaic system integrated to receiving-end power grid

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方案序号	电压合格率/%	过载线路条数	N-1通过率/%
1	10	2	92.68
2	100	0	0
3	100	0	0
4	100	0	0
5	100	0	0

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