Optimization Model of Distribution Network Reliability Investment Based on Index Decomposition

doi:10.16628/j.cnki.2095-8188.2021.03.009

Abstract

Abstract:

With the rapid development of power system and the promotion of power market-oriented reform,the main body of the market takes the maximization of the enterprise’s own benefits as the goal,thus reducing the investment,and the reliability problem is increasingly prominent.In this paper,based on the reliability index decomposition method of typical engineering scenarios,according to the cost-benefit ratio of investment,the investment priority planning is carried out,and under the objective of investment minimization,the optimal investment structure of reliability improvement is realized.

Key words: power system, reliability, sensitivity, cost-benefit ratio, investment optimization

CLC Number:

TM743

WANG Peng, LÜ Haixia, YANG Shuai, ZHU Yongmei, LIU Yong. Optimization Model of Distribution Network Reliability Investment Based on Index Decomposition[J]. LOW VOLTAGE APPARATUS, 2021, 0(3): 47-50.

Figures/Tables 4

References 11

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地市	可降低用户平均故障停电时间/min
地市	可转供电率提升1%	馈线自动化提升1%	电缆化率提升1%	架空线平均分段增加1个
A	208.85	128.69	780.07	1 221.47
B	642.72	351.96	3 327.08	2 040.37
C	86.36	42.21	318.37	415.36

地市	成本效益比/(万元·时户^-1)
地市	可转供电率	馈线自动化覆盖率	电缆化率	架空线平均分段数
A	0.147 97	0.129 03	0.735 39	0.090 44
B	0.043 82	0.233 20	0.351 65	0.059 37
C	0.123 36	0.114 62	0.874 69	0.055 70

地市	可转供电率/%		减停时间/min	馈线自动化覆盖率/%			减停时间/min	电缆化率/%		减停时间/min	架空线平均分段数/(个·条^-1)			减停时间/min
地市	现有值	目标值	减停时间/min	现有值	目标值		减停时间/min	现有值	目标值	减停时间/min	现有值	目标值		减停时间/min
A	95.51	100	0.34	86.34		100	0.64	61.36	67.34	1.71	2.78		4.8	1.50
B	85.19	100	3.49	63.67		100	4.69	78.04	90.57	15.29	2.2		4.8	1.95
C	98.47	100	0.05	90.63		100	0.15	80.30	80.30	0	3.56		4.8	0.19

地市	全地区平均故障停电时间减少值/min	可转供电率提升所需投资/亿元	馈线自动化覆盖率提升所需投资/亿元	电缆化率提升所需投资/亿元	架空线平均分段数提升所需投资/亿元	可靠性规划投资合计/亿元
A	4.19	0.013 7	0.022 5	0.373 0	0.037 0	0.446 2
B	25.42	0.041 7	0.298 2	2.234 4	0.031 5	2.605 8
C	0.39	0.001 7	0.004 7	0	0.002 8	0.009 2

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