计及占用影响的集成楼宇暖通空调负荷群配电网优化方法

Optimization Method of HVAC Load Group Distribution Network for Integrated Buildings Taking Into Account Occupancy Effects

提出了一种考虑人员占用影响的集成楼宇暖通空调(heating,ventilation and air conditioning,HVAC)负荷群配电电网优化方法。首先,依据建筑围护热阻热容网络和配电网支路潮流方程构建了集成暖通空调负荷群配电网数学模型。其次,利用梯形隶属度函数模糊化占用人数并考虑其对暖通空调负荷温度调控的影响,形成包含占用松弛函数约束的暖通空调负荷群与配电网联合优化方法。最后,通过模型预测控制方法实现了集成楼宇暖通空调负荷群配电网的滚动优化控制。改进的IEEE33节点配电网系统仿真结果表明,所提出的计及占用影响的联合优化模型,在楼宇侧能够满足人员热舒适性,同时减少楼宇暖通空调负荷能耗,在电网侧则减少配电网线路损耗和节点电压的波动,有效提高楼宇侧和电网侧整体的节能水平。

An optimization method of heating,ventilation,and air conditioning(HVAC)load group and distribution network for integrated buildings is proposed considering the influence of personnel occupancy.Firstly,the mathematical model of the integrated HVAC load group distribution network is constructed according to the thermal resistance and capacity network of the building envelope and the branch power flow equation of the distribution network.Secondly,the trapezoidal membership function is used to blur the number of occupants,and its influence on the temperature control of HVAC load is considered,and a joint optimization method of HVAC load group and distribution network is formed,including the constraint of occupancy relaxation function.Finally,the model predictive control method is used to realize the rolling optimization control of the integrated building HVAC load group distribution network.The simulation results of the improved IEEE 33 bus system show that the proposed joint optimization model,considering occupancy effects,can satisfy the thermal comfort of personnel reduce the HVAC load energy consumption of buildings on the building side,and reduce the line loss and node voltage fluctuations on the power grid side,effectively improving the overall energy saving level on the building side and the power grid side.