为实现新能源的高消纳,减少碳排放,该文通过电解水制氢与氢气甲烷化技术、电锅炉与燃气轮机等设备将电网与热网紧密联系。首先,对综合能源系统中各单元进行建模;其次,引入需求侧响应,将其分为价格型需求响应与替代型需求响应;然后,考虑系统的能量流动特性,对各单元运行状况进行约束;最后,综合考虑可靠性、经济性、环保性及弃电率,建立多目标下综合能源系统容量配置策略。在此基础上,用Matlab中的商业求解器CPLEX对模型的容量配置进行求解,分析在有无需求响应和有无储能的情况下,对系统容量配置的影响,采用恶劣天气,对已配置容量的可靠性与经济性进行验证,结果表明该容量配置在恶劣情况下,仍能在仅失去较少负荷的情况下有良好的经济性和较高的风光消纳率。
Abstract
In order to achieve high consumption of new energy and reduce carbon emissions, this article closely links the power grid with heating network through electrolysis of water for hydrogen production and hydrogen methanation technology, as well as electric boilers and gas turbines, and other equipment. Firstly, model each unit in the integrated energy system. Secondly, introduce demand side response and divide it into price based demand response and substitution based demand response. Then, considering the energy flow characteristics of the system, constraints are imposed on the operating conditions of each unit. Finally, considering reliability, economy, environmental friendliness, and abandonment rate, a multi-objective comprehensive energy system capacity allocation strategy is established. On this basis, the commercial solver CPLEX in Matlab is used to solve the capacity configuration of the model, and the impact on the system capacity configuration with and without demand response and energy storage is analyzed. The reliability and economy of the configured capacity are verified using severe weather conditions. The results show that the capacity configuration can still have good economy and high wind and solar energy consumption rate with minimal load loss under adverse conditions.
关键词
综合能源系统 /
多目标优化 /
需求响应 /
容量配置 /
氢能系统
Key words
integrated energy system /
multi-objective optimization /
demand response /
capacity configuration /
hydrogen energy systems
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