含储热光热电站的电网调度模型与并网效益分析

发布时间：2018-08-14 20:00

【摘要】：含储热的光热发电系统是近年来太阳能利用的一种新的发展方向。其优势体现在:借助大容量的储热装置,该系统能够平移所吸收的光热能,具有良好的可调度性;同时其中的汽轮机组具有良好的可控性。从含储热的光热电站的运行机理入手,经过抽象和简化,得到了面向电网调度的光热电站模型。该模型刻画了光热电站中的能量流及其主要运行约束,适用于电网调度。在传统安全约束机组组合模型基础上,提出了含光热电站的电网调度模型。对算例系统进行了电网调度仿真,分析了在完全接纳光热发电的前提下,光热电站并网在发电成本、可再生能源接纳和提高汇集输电线路利用率等方面的可观效益。
[Abstract]:Photothermal power generation system with heat storage is a new development direction of solar energy utilization in recent years. The advantages are that the system can translate the absorbed optical heat energy with large capacity heat storage device and has good schedulability, and the steam turbine unit has good controllability. Starting from the operation mechanism of photothermal power station with heat storage, the model of photothermal power station for power grid dispatching is obtained by abstracting and simplifying. The model describes the energy flow and its main operating constraints in photothermal power plants and is suitable for power grid dispatching. Based on the traditional security constrained unit model, a power grid dispatching model for thermal power plants with light is proposed. The power grid dispatching simulation of the example system is carried out. On the premise of fully accepting photothermal power generation, the considerable benefits of the photothermal power station in generating cost, receiving renewable energy and improving the utilization ratio of converged transmission lines are analyzed.
【作者单位】：清华大学电机工程与应用电子技术系;电力系统及发电设备控制和仿真国家重点实验室清华大学;
【基金】：国家重点基础研究发展计划(973计划)资助项目(2013CB228201) 国家杰出青年科学基金资助项目(51025725) 国家自然科学基金资助项目(51321005,51361135703) 北京市青年英才计划资助项目(YETP0096)~~
【分类号】：TM615

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