含先进绝热压缩空气储能电站的电力系统实时调度模型

Real-Time Dispatch Model for Power System with Advanced Adiabatic Compressed Air Energy Storage

先进绝热压缩空气储能(AA-CAES)具有规模大、成本低、无需燃料、效率高等优点,是压缩空气储能(CAES)技术领域的主流发展趋势之一。本文将AA-CAES电站作为重要的调度资源,与常规机组、风电共同参与电力系统实时调度。首先,基于AA-CAES电站的热力学特性,建立能够反映AA-CAES电站变工况条件下运行特性的储能电站运行约束模型。然后,考虑AACAES电站在自动发电控制(AGC)阶段的功率调节不确定性,建立AA-CAES电站AGC约束模型。在此基础上,提出含AA-CAES电站的电力系统实时调度模型,该模型考虑了系统AGC容量需求约束、AGC调节速率需求约束和AGC调节任务量需求约束。最后,基于修改版IEEE30节点系统进行算例仿真,仿真结果证明了调度模型的有效性。

Advanced adiabatic compressed air energy storage(AA-CAES)has the merits of large-scale,low-costs,no fossil fuel,and high efficiency,etc.It is one of the mainstream development trends of the compressed air energy storage(CAES)technology.This paper took the AA-CAES as an important scheduling resource,to participate in power system real-time dispatch together with thermal power generators and a wind power plant.Firstly,based on the thermodynamic characteristics of the AA-CAES plant,the operation constraints of AA-CAES,which can reflect the AA-CAES operation characteristics under off-design conditions,were established.After that,the automatic generation control(AGC)constraints of the AA-CAES plant were established considering the power regulation uncertainty in the AGC stage.As a result,the real-time dispatch model for the power system with AA-CAES was established.In the model,the system AGC capacity demand,the AGC regulation rate demand and the AGC regulation task demand were considered.Finally,the simulation test was applied on the modified IEEE 30-bus system,which verified the dispatch model.