Decision method of distribution network energy storage planning considering double uncertainty and comprehensive efficiency

doi:10.19799/j.cnki.2095-4239.2021.0362

Abstract

Abstract:

A decision-making method for energy storage planning considering double uncertainties is proposed herein to solve the influence of planning scenarios, decision maker preferences, and other uncertainties on energy storage planning and improve the application efficiency of the energy storage. First, the energy storage operation in the two scenarios of normal operation and extreme recovery is considered. Daily operation is optimized by minimizing the network loss, while extreme recovery is optimized by minimizing the power loss and mobile costs. Moreover, an index system is proposed to comprehensively evaluate the energy storage contribution to different application scenarios. Second, considering the uncertainties of both the planning scenario and the decision maker facing risk, this study introduces the prospect theory to deal with the index matrix, takes the comprehensive prospect value as the attribute value of each index, uses the gray target decision to determine the index matrix weight based on the prospect value, and finally determines the scheme through the optimal prospect value of the scheme. Finally, an example is given to verify the effectiveness and the feasibility of the proposed method.

Key words: energy storage planning, uncertainty, prospect theory, grey target decision making

CLC Number:

TM 73

Shiyu DENG, Wenxia LIU, Chang LIU, Qida LIU, Shouqiang LI, Zongqi LIU. Decision method of distribution network energy storage planning considering double uncertainty and comprehensive efficiency[J]. Energy Storage Science and Technology, 2022, 11(1): 164-175.

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负荷类型	节点
居民负荷	2，4，5，10，13，14，18，21，23，28，29
商业负荷	1，7，12，16，20，22，24，26，27，32
工业负荷	3，6，8，9，11，15，17，19，25，30，31

技术性能参数	参数值
充电效率	0.9
放电效率	0.9
额定功率/kW	300
额定容量/(kW·h)	1000
单位容量成本/[CNY/(kW·h)]	2100
单位功率成本/[CNY/(kW·h)]	800
单位功率年运维成本/[CNY/(kW·a)]	64
SOC上限	0.9
SOC下限	0.1
初始SSOC	0.5
使用年限/年	10

储能	DESS1	DESS2	DESS3
安装节点	11	16	31
安装模块数量	2	1	2
设备成本/万元	428.508	214.254	428.508
运维成本/万元	80.64	40.32	80.64

编号	指标	指标值	指标权重
1	投资成本/万元	1272.87	0.0248
2	延缓电网升级改造收益/(万元/年)	117.569	0.1030
3	网损收益/(万元/年)	171.414	0.1657
4	重要负荷恢复收益/万元	52.53	0.3909
5	一般负荷恢复收益/万元	10.5745	0.2109
6	储能移动成本/万元	0.5	0.1047

方法	1	2
配置方案/(节点/模块数)	10/2、15/1、30/2	10/1、15/1、19/1、30/1
投资成本/万元	1272.87	1018.26
正常运行效益M_nor/万元	171.414	165.205
极端运行效益M_fault/万元	62.6045	54.895