热泵储电系统多物理域建模与动态仿真研究  

Research on Multi-physics Domain Modeling and DynamicSimulation of Pumped Thermal Electricity Storage System

作　　者：安旭刚 何青[1] 张千旭 AN Xugang;HE Qing;ZHANG Qianxu(School of Energy,Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,China)

机构地区：[1]华北电力大学能源动力与机械工程学院,北京102206

出　　处：《动力工程学报》2024年第10期1592-1599,共8页Journal of Chinese Society of Power Engineering

基　　金：国家重点研发计划资助项目(2020YFB0905900)。

摘　　要：热泵储电技术是一种新型物理储能技术。为丰富热泵储电系统动态特性研究,建立了布雷顿循环热泵储电系统动态仿真物理模型,分析了系统储/释能阶段启动过程中主要特性参数的动态响应,包括压力、温度、流量、功率等。结果表明:为使系统运行到额定工况,系统的容腔体积选取为5 m^(3),储/释能阶段的初始压力分别选取为2.1、3.8 MPa;在给定的转速升速率下,系统主要特性参数均从初始值按照一定趋势逐渐变化,在约1400 s处达到额定值。该仿真模型和研究结果可为热泵储电系统的启动过程动态特性分析提供一定的参考。Pumped thermal electricity storage(PTES)is a new type of physical energy storage technology.To study the dynamic characteristics of PTES system,a dynamic simulation physical model of Brayton cycle PTES system was established,and dynamic response of the main characteristic parameters during start-up process of energy storage/release stage was analyzed,including pressure,temperature,mass flow,power,etc.Results show that in order to make the system operate under the rated condition,the system volume should be selected as 5 m^(3),and the initial pressure in energy storage/release stage should be selected as 2.1 and 3.8 MPa,respectively.At a given speed increase rate,the main characteristic parameters of the system gradually change from the initial values according to a certain trend,and reach the rated values in about 1400 s.The simulation model and research results can provide references for the dynamic characterization of start-up process of PTES system.

关 键 词：储能 热泵储电 多物理域建模 动态仿真 

分 类 号：TK02[动力工程及工程热物理]