某330 MW热电机组抽汽工况调峰能力试验

Peak Shaving Capacity Test of a 330MW Thermal Power Unit under Extraction Condition

热电机组的调峰能力受抽汽量影响,设计抽汽工况图不能准确反应机组的实际调峰性能,为解决上述问题,以某330 MW热电机组为例,通过调峰能力试验得到机组在不同抽汽流量下的实际调峰上下限,并和设计抽汽工况图进行比较,分析其实际调峰能力和设计值偏差的原因,为电厂运行调度提供参考,帮助电厂更好地参与辅助服务调峰。

The peak-shaving capacity of thermal power units is affected by the amount of steam extracted,so the design of working condition diagram for steam extraction can not accurately reflect the actual peak-shaving performance of units.In order to solve the above problems,takes a 330 MW thermal power unit as an example,gets the actual peak-shaving upper and lower limits of the unit under different extraction flow rates through peak-shaving capacity test,and compares them with the design of working condition diagram for steam extraction,and analyses the reasons for the deviation of the actual peak-shaving capacity and design value,so as to provide reference for the operation and dispatch of the power plant and help power plants to better participate in peak shaving of ancillary services.