综合能源系统电气热多能量流建模及优化

doi:10.16183/j.cnki.jsjtu.2022.494

摘要/Abstract

摘要：

针对区域综合能源系统中电、气、热多种能源形式的转换严重影响系统运行的经济性,建立区域综合能源系统(RIES)能量流数学模型和优化模型,以提升系统的经济性和对可再生能源的消纳.建立系统中各类能源转换设备数学模型,确定电力、燃气、热能3种能源传输网络约束条件;以经济性运行为首要目标,兼顾低碳排放和提高可再生能源消纳率的目标函数,构建RIES多能流优化模型.在大型综合能源系统基础上,引入负荷侧需求响应,建立仿真模型.仿真结果表明,需求响应的引入提高了系统调度灵活性,减少了系统对储能设备的依赖,有效降低了用户的用能成本.

关键词: 区域综合能源系统, 多能流, 线性化, 需求响应

Abstract:

In view of the fact that the conversion of various energy forms such as electricity, gas, and heat in the regional integrated energy system (RIES) seriously affects the economy of the system operation, a mathematical model and an optimization model of RIES energy flow are established to improve the economy of the system and the absorption of renewable energy. First, the mathematical models of all kinds of energy conversion equipment in the system are established to determine the constraints of three kinds of energy transmission networks, namely electricity, natural gas, and heat. Then, taking economic operation as the primary objective, and taking into account the objective function of low carbon emissions and increasing the uptake rate of renewable energy, the RIES multi-energy flow optimization model is constructed. Finally, based on the large-scale integrated energy system, the load side demand response is introduced and the simulation model is established. The simulation results show that the introduction of demand response improves the flexibility of system scheduling, reduces the dependence of the system on energy storage equipment, and effectively reduces the energy consumption cost of users.

Key words: regional integrated energy system (RIES), multi-energy flow, linearization, demand response

中图分类号:

TM732

李冰洁, 袁晓昀, 史静, 徐华池, 罗子萱. 综合能源系统电气热多能量流建模及优化[J]. 上海交通大学学报, 2024, 58(9): 1297-1308.

LI Bingjie, YUAN Xiaoyun, SHI Jing, XU Huachi, LUO Zixuan. Multi-Energy Flow Modeling and Optimization of Electric-Gas-Thermal Integrated Energy System[J]. Journal of Shanghai Jiao Tong University, 2024, 58(9): 1297-1308.

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时段	负荷电价/[元/(kW·h)^-1]
0:00—7:00,22:00—24:00	0.25
7:00—8:00,12:00—18:00	0.38
8:00—12:00,18:00—22:00	0.65

场景	火电机组成本	天然气费用	设备费用	弃风弃光惩罚成本	碳排放惩罚成本	总成本
无需求响应	3.7494	696.93	1.9233	0.000006	0.2522	702.8549
有需求响应	3.4414	689.93	1.9232	0.000003	0.2548	695.5494