计及需求响应的综合能源系统优化运行策略研究

Optimal Operation Strategy Research of Integrated Energy System Considering Demand Response

针对传统的综合能源系统电储能装置价格高、放电功率小,导致其参与需求响应效果不佳,引入了电解水制氢的技术,使氢气参与需求响应对综合能源系统运行进行优化。为了分析气象因素对综合能源系统运行的影响,首次引入了负荷匹配度的概念,并揭示了其对系统运行成本和碳排量的影响。研究结果显示:相较于不计需求响应的系统,计及电力需求响应的综合能源系统具有更大灵活性,可分别降低系统运行成本和碳排放量达7.4%和14.0%。随着负荷匹配度的增加,系统日均运行成本和碳排量也分别降低达15.8%和35.0%,同时,电解水制氢的量也随之减少。

Due to the high price and low discharge power of the traditional integrated energy system,it cannot response to the loads effectively.In this paper,the technology of hydrogen production by electrolyzing water is introduced to optimize the operation of the integrated energy system and response to the loads.In order to analyze the influence of meteorological factors on the operation of integrated energy system,the concept of loads matching degree is firstly defined,and its influence on the operation cost and carbon emission of the system is revealed.The results show that,compared with the system without demand response,the integrated energy system with electric power demand response is more flexible.Moreover,the system operation cost and carbon emission can be reduced by 7.4%and 14%.Finally,with the increase of load matching degree,the optimal operation cost and carbon emission of the system are reduced by 15.8%and 35%,At the same time,the amount of hydrogen produced by electrolyzing water also decreases.