Comprehensive Evaluation of Flexibility Resource Regulation Capability in New Energy Power Systems Based on Hybrid Multi-attribute Decision-making Methods

doi:10.11930/j.issn.1004-9649.202504063

Abstract

Abstract:

A reasonable assessment of the regulation capability of flexibility resources is of importance for enhancing the flexibility of power systems and constructing new-type power systems with high proportions of renewable energy integration. An evaluation indicator system for the regulation capability of flexibility resources in renewable energy power systems is established from both economic and technical dimensions. Furthermore, a comprehensive evaluation model for the regulation capability of flexibility resources is constructed based on the entropy weight method and the MARCOS method. Finally, four typical flexibility resources are evaluated. The results indicate that ramp rates, timescale regulation capability, service life, and unit regulation range are key factors influencing the flexibility resource regulation capability; electrochemical energy storage demonstrates the best regulation performance, while gas-fired power generation exhibits the poorest. Empirical research and sensitivity analysis validate the effectiveness and feasibility of the proposed model.

Key words: flexibility resource, regulation capability entropy, new energy power system, weight method, MARCOS method

CAO Shuyi, TAO Hongzhu, WANG Qiang, LI Xiaofei, WANG Leibao, GUO Sen. Comprehensive Evaluation of Flexibility Resource Regulation Capability in New Energy Power Systems Based on Hybrid Multi-attribute Decision-making Methods[J]. Electric Power, 2025, 58(11): 62-71, 87.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202504063

https://www.electricpower.com.cn/EN/Y2025/V58/I11/62

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References 35

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目标层	一级指标	二级指标	类型	编号
灵活性资源调节能力	经济性指标	新建或改建投资成本	负向指标	S1
		可变成本	负向指标	S2
		使用年限	正向指标	S3
	技术性指标	爬坡速率	正向指标	S4
		启停时间	负向指标	S5
		机组调节范围	正向指标	S6
		调节时间尺度	正向指标	S7

目标层	一级指标	二级指标	类型	编号
灵活性资源调节能力	经济性指标	新建或改建投资成本	负向指标	S1
		可变成本	负向指标	S2
		使用年限	正向指标	S3
	技术性指标	爬坡速率	正向指标	S4
		启停时间	负向指标	S5
		机组调节范围	正向指标	S6
		调节时间尺度	正向指标	S7

指标	灵活性火电	气电	抽水蓄能	电化学储能
固定成本/(元·kW^–1)	650	3100	6900	1500
可变成本/(元·(kW·h)^–1)	0.2095	0.5700	0.2619	0.2465
使用年限/年	20	30	80	12
爬坡速率/(Pn·min^–1)	5%	8%	20%	100%
启停时间/h	4.500	2.000	0.420	0.017
机组调节范围/%	70	80	200	200
时间尺度调节能力	2	1	2	1

指标	灵活性火电	气电	抽水蓄能	电化学储能
固定成本/(元·kW^–1)	650	3100	6900	1500
可变成本/(元·(kW·h)^–1)	0.2095	0.5700	0.2619	0.2465
使用年限/年	20	30	80	12
爬坡速率/(Pn·min^–1)	5%	8%	20%	100%
启停时间/h	4.500	2.000	0.420	0.017
机组调节范围/%	70	80	200	200
时间尺度调节能力	2	1	2	1

指标	灵活性火电	气电	抽水蓄能	电化学储能
固定成本	1.0000	0.6080	0.0000	0.8640
可变成本	1.0000	0.0000	0.8546	0.8974
使用年限	0.1176	0.2647	1.0000	0.0000
爬坡速率	0.0000	0.0316	0.1579	1.0000
启停时间	0.0000	0.5577	0.9101	1.0000
机组调节范围	0.0000	0.0769	1.0000	1.0000
调节时间尺度	1.0000	0.0000	1.0000	0.0000