基于峰谷电价的地板辐射供暖系统运行方案分析及优化

Analysis and optimization of operation scheme of radiant floor heating system based on the peak-valley electricity price

以减少供暖季热泵机组的运行费用为目标,基于峰谷电价政策提出地板辐射供暖系统运行方案的优化模型以分析系统运行过程,从而实现系统的优化控制。对全国各省份的峰谷电价政策进行分类总结;以某商用地板辐射供暖房间为研究对象,建立室内温度与上一时刻室内温度、供水温度、室外温度等参数之间的函数关系,并建立以日运行费用最低为目标且能够保证室内温度舒适性的优化模型;采用自适应粒子群优化算法进行寻优计算,并利用Matlab语言进行编程计算与分析。按照峰谷电价政策分类从全国选取3个典型城市,寻求地板辐射供暖系统节省费用的运行控制策略。结果显示:经过优化之后3个案例的日用电费用均明显下降,且峰与谷电价差距越大,费用节省效果越明显。

With the goal of reducing the operating costs of heat pump units during the heating season,on the basis of the peak-valley electricity price policies,an optimization model of a radiant floor heating system operation scheme is proposed to analyze the system operation process,and therefore the optimal control of the system can be achieved.The peak-valley electricity price policies of each province in China are classified and summarized.A commercial radiant floor heating room was employed as the research object,and then the functional relationship between the indoor temperature and some parameters such as the indoor temperature at the previous moment,the water supply temperature,the outdoor temperature and so on can be established,and then an optimization model with the objective of both minimizing daily operating costs and ensuring indoor temperature comfort is developed.The adaptive particle swarm optimization algorithm is used for the optimization calculation,and the programming calculations and analysis are conducted by means of Matlab language.Three typical cities are selected from the whole country according to the classification of the peak-valley electricity price policies,and the optimal control strategy is sought for the cost saving of radiant floor heating system of these three cities.The results show that the reductions of daily electricity cost of three cases are obvious,and the greater the difference between peak and valley electricity price,the more significant the cost savings.