考虑建筑热平衡与柔性舒适度的乡村微能源网电热联合调度

Coordinated Heat and Power Dispatch of Micro-energy Network of Countryside Considering Heat Balance Model of Building and Flexible Indoor Comfort Constraint

针对乡村高渗透率新能源消纳和清洁供暖问题,提出了一种考虑建筑热平衡与用户柔性舒适度约束的微能源网电热联合调度方法。首先,提出了基于乡村地区人员作息规律的柔性舒适度约束,并建立了考虑围护结构特性、门窗渗透、冷风侵入、内热源散热等因素的热平衡模型;其次,构建了含户级电热分散供应和村级集中光伏接入的乡村微能源网基本架构,发展了空气源热泵等微能源网元件的效能描述模型;再次,考虑光伏消纳经济性,构建了以系统整体效益最优为目标、用户舒适性为约束的乡村微能源网电热联合日前调度的数学模型,提出了基于遗传算法的求解方法;最后,通过算例验证了所提模型和方法的有效性与实用性。

Aiming at the problem of new-energy accommodation and low-carbon heating in the energy supply system of countryside,a new method of coordinated heat and power dispatch is proposed,which considers heat balance model of building and flexible indoor comfort constraint of customers.First of all,a flexible indoor comfort constraint based on the schedule of villagers is put forward,and then a heat balance model is established,which considers the building envelope,the penetration of doors and windows,heat consumption of opening doors and windows and the heat dissipation of the internal heat source.Secondly,the basic architecture for the micro-energy network of countryside is constructed,which includes household electricheating supply system and village-level centralized photovoltaic system.Thirdly,the models of various components in microgrid are developed,such as air source heat pump model.Furthermore,a mathematical model of coordinated heat and power dispatch is established,which considers the economy of the whole system under the indoor comfort constraint.A solution method based on genetic algorithm is proposed.Finally,the validity and practicability of this method is verified by a typical case analysis.