电锅炉参与下火电机组甩负荷动态特性研究

Dynamic Characteristics of Electric Boilers Participating in the Shedding of Load of Thermal Power Units

我国正在加速清洁能源转型以实现“双碳目标”,然而新能源的不断接入使电力系统更加波动和难以稳定,尤其在寒冷供暖地区,电力系统任务更为艰巨。为了解决电力中断问题,火电机组的甩负荷控制技术变得迫切。目前的研究主要集中在改进火电机组运行和蓄热电锅炉的经济性和环保性,但电锅炉的热力特性尚未深入研究。本文建立了电锅炉的功率简化模型,通过仿真模拟研究了电锅炉参与火电机组甩负荷调节的动态特性,旨在为火电机组的灵活性改造提供支持,以提高电力系统的稳定性。

China is accelerating its transition to clean energy to achieve carbon peaking and carbon neutrality goals.However,the increasing integration of new energy sources has made the power system more volatile and challenging to stabilize,particularly in cold areas that require heating,the task of power system is more difficult.In order to solve the problem of power interruption,the load rejection control technology of thermal power units becomes urgent.Current research primarily focuses on improving the operation of thermal power units and the economic and environmental aspects of thermal storage electric boilers,but the thermal characteristics of electric boilers remain underexplored.This paper establishes a simplified power model for electric boilers and conducts simulation studies to investigate the dynamic properties of electric boilers in load shedding scenarios within thermal power units.The aim is to support the flexibility enhancement of thermal power units and enhance the stability of the power system.