Multi-Time-Space Scale Optimal Dispatch of Integrated Energy in Micro-Energy Grid Considering Demand Response

doi:10.16183/j.cnki.jsjtu.2022.177

Abstract

Abstract:

The operation of the integrated energy system is one of the hot spots in the current energy research field. With the reform of the energy field mechanism, the integrated energy system with multi-micro-energy grids poses great challenges to the operation of the power grid. Aimed at the economic and operational problems caused by the integration of multi-micro-energy grid integrated energy systems into the upper distribution network, a multi-temporal and spatial scale optimization operation strategy for integrated energy of micro-energy grid considering demand response is proposed. Moreover, a multi-dimensional energy supply and demand balance model from the perspective of energy is constructed. Furthermore, a multi-time-space scale operation model with upper, middle, and lower layers of collaborative optimization is established. The upper layer adopts day-ahead scheduling, the middle layer adopts intraday scheduling, and the lower layer adopts real-time scheduling with replaceable, transferable, and curtailable loads for demand response optimization. Calculation examples show that this strategy can realize the co-ordination and complementation of multi-dimensional energy sources, realize the coordinated operation of multiple energy sources at different time and space scales, and improve the economy of system operation.

Key words: integrated energy system, micro-energy grid, energy supply and demand balance, demand response, multi-time-space scale

CLC Number:

TM732

QIN Wenping, YANG Jingsi, JING Xiang, YAO Hongmin, LI Xiaozhou, ZHANG Xinzhe. Multi-Time-Space Scale Optimal Dispatch of Integrated Energy in Micro-Energy Grid Considering Demand Response[J]. Journal of Shanghai Jiao Tong University, 2023, 57(12): 1583-1596.

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负荷类型	负荷比例
负荷类型	常规负荷	可替代负荷	可转移负荷	可削减负荷
电负荷	0.4	0.2	0.3	0.1
热负荷	0.6	0.1	0.2	0.1
天然气负荷	0.3	0.2	0.4	0.1
氢气负荷	0.6	0.1	0.2	0.1

类型		价格/(美元· kW^-1·h^-1)	类型		价格/(美元· kW^-1·h^-1)
电负荷	可替代	0.44	天然气负荷	可替代	0.28
	可转移	0.44		可转移	0.28
	可削减	0.55		可削减	0.35
热负荷	可替代	0.20	氢气负荷	可替代	0.20
	可转移	0.20		可转移	0.20
	可削减	0.25		可削减	0.25

微能网类型	成本类型	日前	日内	实时
工业	购能	6894.50	6401.70	6405.80
	环境保护	242.60	235.01	226.27
	设备维护	297.42	297.40	297.36
	传输损耗	—	—	30.07
	能量交互	214.54	6.24	—
	补偿	165.57	129.78	61.62
	总和	7814.62	7070.12	7021.11
商业	购能	2623.90	2793.80	3396.70
	环境保护	71.88	69.48	78.67
	设备维护	283.38	293.60	294.98
	传输损耗	—	—	54.39
	能量交互	124.77	30.69	—
	补偿	55.43	55.44	33.47
	总和	3159.37	3243.00	3858.22
居民	购能	5913.90	5766.20	5642.50
	环境保护	209.28	204.38	175.49
	设备维护	297.55	295.68	297.34
	传输损耗	—	—	32.43
	能量交互	137.98	15.49	—
	补偿	133.53	133.61	101.75
	总和	6692.24	6415.36	6249.51

能源网类型	购能	环境保护	设备维护	传输损耗	补偿	总和
工业	6488.90	228.86	297.83	31.78	69.93	7117.31
商业	3319.40	85.85	302.30	56.83	55.21	3819.59
居民	5673.70	186.51	300.66	31.38	106.63	6298.89