园区电-热互补系统优化调度模型

Optimal Dispatching Model of Power-Heat Complementary System in Indus trial Park

多能源需求响应是实现削峰填谷,缓解能源供应与负荷需求矛盾、提升能源利用效率的重要手段,对促进综合能源系统的可持续发展具有重要意义.首先,在构建耦合电-热的园区互补能源系统的基础上,从弹性矩阵的角度构建了电能与热能需求响应模型,考虑机组出力、能源平衡等约束条件,以系统收益为目标函数的优化模型.以需求响应手段实施为变动因素,设置多情景进行了实例分析.算例结果表明:多能源需求响应模型通过对电价与热价的再设计,在总用能量保持基本不变的基础上,用户负荷需求发生了转移,负荷与系统出力的匹配度增强,与传统情景相比,需求响应手段实施后,系统的能源利用效率提升、系统净收益提升与用户支出降低,实现了“经济-环境-系统-用户”等多方的共赢。

Multi-energy demand response is an important means to achieve peak-shaving and valley-filling,alleviate the contradiction between energy supply and load demand,and improve energy efficiency.It is of great significance to promote the sustainable development of integrated energy system.Firstly,on the basis of building the park complementary energy system coupled with elec tricity and heat,the demand response model of electric energy and heat energy is constructed from the perspective of elastic matrix.Considering the constraints of unit output and energy balance,the optimization model takes the system revenue as the objective function.Taking the implementation of demand response measures as a variable factor,this paper sets up multiple scenarios for an example analysis.The results show that the multi-energy demand response model,through redesigning the electricity and heat prices,has shifted the user's load demand and enhanced the matching degree between the load and the system output on the basis of keeping the total energy unchanged.Compared with the traditional scenario,the energy utilization efficiency of the system has been improved after the implemen tat ion of the demand response met hod.The net income of the sys tem is increased and the user's expenditure is reduced,and the situation of"economy-environment-systemuser"is realized.