园区供电系统广义负荷需求响应建模与分析

doi:10.3969/j.issn.2097-0706.2024.01.002

摘要/Abstract

摘要：

产业园区供能系统采用的是多能耦合、源网荷储协同优化的方式，其电力负荷定义也转变为新型综合性的广义负荷。考虑电价信号对园区主动负荷响应特性的影响，建立了计及响应电价的园区供电系统广义负荷模型，并采用层次聚类方法提取典型负荷模式，研究园区供电系统负荷需求响应特征。为验证模型与方法的有效性，采用中国南方城市某园区供电系统负荷进行测算，模拟了实时电价和分时电价2种市场机制下主动负荷的响应特性。分析了不同主动负荷占比对园区广义负荷特征的影响，并定量讨论了不可控负荷、可转移负荷、可中断负荷对广义负荷需求响应效果的贡献程度。结果表明，适当的电价机制将有序引导园区供电系统广义负荷主动削峰填谷，有助于虚拟电厂建设，实现源网荷灵活互动。

关键词: 园区供电系统, 广义负荷, 需求响应, 负荷聚类, 多能耦合, 源网荷储

Abstract:

Given that energy supply systems of industrial parks always take multi-energy coupling and source‒network‒ load‒storage collaborative operation mode， the definition of power loads has been extended，and the generalized load is more comprehensive than the traditional concept. Considering the influence of electricity price signal on the response characteristics of active load， a generalized load model for the power supply system considering the demand response pricing is established. Typical load patterns are extracted from the model by hierarchical clustering method， and used to study the load demand response characteristics of the power supply system. To verify the effectiveness of the model， simulation was carried on a power supply system in an industrial park in south China， to summarize the response characteristics of active loads under real-time and time-of use electricity pricing mechanisms. The impact of proportion of active load in generalized load on its response characteristics analysed， and the contributions of uncontrollable load， transferable load， and interruptible load to generalized load demand response were quantitatively discussed. The results show that an appropriate electricity pricing mechanism will rationalize the peak load regulation of power supply systems，facilitate the construction of virtual power plants， and regulate interactions between source， grid and users.

Key words: industrial park power supply system, generalized load, demand response, load clustering, multi-energy coupling, source‒network‒load‒storage

中图分类号:

TK019

鲍海波, 梁浚杰, 李想. 园区供电系统广义负荷需求响应建模与分析[J]. 综合智慧能源, 2024, 46(1): 11-17.

BAO Haibo, LIANG Junjie, LI Xiang. Modeling and analysis on demand response for generalized load of power supply systems in industrial parks[J]. Integrated Intelligent Energy, 2024, 46(1): 11-17.

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项目		最大负荷/MW	最小负荷/MW	峰谷差/MW	负荷率	P_MALD	P_MILI
响应前		531.29	143.89	387.4	0.59
响应后主动负荷占比/%	10	506.25	167.64	338.61	0.62	0.05	0.16
	30	448.88	190.33	258.54	0.69	0.16	0.32
	50	435.31	192.63	242.67	0.71	0.18	0.34
	70	478.96	180.7	298.26	0.64	0.09	0.26

项目		最大负荷/MW	最小负荷/MW	峰谷差/MW	负荷率	P_MALD	P_MILD
响应前		531.29	143.89	387.4	0.60
不同主动负荷占比下的响应/%	10	556.36	160.83	395.53	0.56	-0.05	-0.12
	30	548.39	187.91	360.47	0.57	-0.03	-0.31
	50	479.49	182.03	297.46	0.64	0.09	-0.26
	70	434.41	168.93	265.48	0.71	0.18	-0.17