Integrated energy storage steam turbine exhaust heat power generation system and method

By integrating energy storage into the turbine exhaust heat and power co-processing system, the problem of the separation of electricity and heat systems in traditional thermal power plants has been solved. This enables the spatial and temporal transfer of energy and rapid frequency regulation, improving the economic efficiency and flexibility of power plant operation and ensuring the stability of heating supply.

CN122407320APending Publication Date: 2026-07-17HUADIAN ELECTRIC POWER SCI INST CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUADIAN ELECTRIC POWER SCI INST CO LTD
Filing Date
2026-03-19
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional thermal power plants suffer from fragmented electrical and thermal systems, lack of global optimization, inability to effectively utilize cheap electricity for energy storage, insufficient regulation capabilities, and difficulty in coordinating with the power grid, resulting in unstable heating, high energy costs, and inability to participate in grid frequency regulation ancillary services.

Method used

The turbine exhaust heat and power co-operation system adopts integrated energy storage, including a steam source extraction unit, an electro-thermal coupled energy storage module, and an intelligent scheduling and control unit. The intelligent scheduling and control unit integrates multi-source information in real time, formulates multi-modal collaborative operation strategies, and utilizes the energy storage unit and steam storage unit to realize the spatiotemporal transfer of energy and rapid frequency regulation.

Benefits of technology

It enables efficient steam generation and energy storage during grid off-peak hours, prioritizes the use of stored energy during grid peak hours, reduces electricity purchase costs and absorbs renewable energy, provides second-level frequency regulation auxiliary services, ensures stable steam parameters, and improves the economic efficiency and flexibility of power plant operation.

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Abstract

本发明公开了一种集成储能的汽轮机排汽热电协同系统及方法,所述系统包括:汽源引取单元、电‑热耦合储能模块和智能调度控制单元;电‑热耦合储能模块包括电动蒸汽压缩机单元、电加热升温单元、供电接口单元、储能单元和蒸汽存储单元;智能调度控制单元与电‑热耦合储能模块连接,用于根据电网频率调节信号与优化目标协同调度电‑热耦合储能模块的运行。本发明能够实现能量在时间维度上的平移与形态上的高效转换,将刚性供热负荷转变为电网的优质可调负荷与虚拟储能,显著提升了电厂运行灵活性、经济性及可再生能源消纳能力。
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