基于Simulink的热泵储电系统动态仿真
摘要:热泵储电技术(pumped thermal electricity storage，PTES)储能阶段通过热泵循环将电能转换为热能储存，释能阶段通过热机循环将存储的热量转换为电能，适用于大规模储能应用且无特定地理条件限制，可由多种热力学循环类型和储热/冷类型的组合实现。由于目前缺乏对热泵储电系统动态特性的深入研究，难以进行系统的动态性能预测、变工况运行过程的调节控制策略制定以及系统设计优化。基于Simulink平台和模块化建模方法，建立了热泵储电系统热力循环过程的动态仿真模型，研究了热泵储电系统在功率变化条件下的动态性能，包括压缩/膨胀过程压比、转速、温度、压力、流量和功率等工作特性参数的动态响应，通过工作特性参数响应分析说明了热泵储电系统功率调节和控制的可行性，满足电网对热泵储电系统储能功率变化且恒速并网的需求。该动态仿真模型及研究结果可为热泵储电系统变工况运行控制策略制定和系统优化设计提供计算分析工具和理论参考。
Abstract：A type of thermal energy storage process for large scale electric applications is referred here as pumped thermal electricity storage (PTES), which based on a high temperature heat pump cycle which transforms electrical energy into thermal energy, followed by a thermal engine cycle which transforms the stored thermal energy back into electrical energy. PTES may be able to make a significant contribution towards future large scale energy storage needs, and without limitations in terms of geographical constraints, PTES may make use of different types of thermodynamic cycles and thermal storages. Due to little work in present literature can be found in-depth research on the dynamic characteristics of PTES, it is difficult to predict the dynamic performance of the system, develop the control strategy technology of operating process, or optimize the system design. A dynamic model of PTES system was built with Simulink and modular modeling approach on the basis of thermodynamic cycle. The dynamic response of working characteristics including compression and expansion ratio, compressor rotating speed, temperature, pressure, mass flow rate, power of PTES system were studied. The feasibility of power control and meeting the requirements of the public grid of energy storage power change were indicated, which providing computational tools and reference of control strategy and design optimization of PTES system.
标题：基于Simulink的热泵储电系统动态仿真
title:Dynamic Simulation of Pumped Thermal Electricity Storage System Based on Simulink
作者：张谨奕, 白宁, 李京浩, 王含, 郭霄宇, 韩雨辰, 张玮
authors:ZHANG Jinyi, BAI Ning, LI Jinhao, WANG Han, GUO Xiaoyu, HAN Yuchen, ZHANG Wei
关键词：热泵储电(PTES),热力学循环,动态仿真,动态响应,控制策略,
keywords:pumped thermal electricity storage (PTES),thermodynamic cycle,dynamic simulation,dynamic response,control strategy,
发表日期：2020-07-17
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