摘要
随着新能源发电占比大幅增大,电力系统电源从可预测的火电和水电变为随机性更高的新型负荷,即难以预测的风电和光伏发电,给火电机组实时平衡带来巨大挑战。汽轮机配汽阀门作为汽轮机中的最为核心的控制执行机构,对汽轮机平稳、安全运行以及频繁调峰调频能力意义重大。然而,阀门管理模型具有强非线性与动态性,传统辨识方法无法满足日益严苛的控制要求。因此,本文针对进汽段高压调节阀门管理模型辨识方法展开研究,将复杂整体模型描述为非线性修正与两个动态模型相互作用的简化模型进行阀门管理动态模型辨识。经实验验证,效果优于传统方法。
As the share of new energy generation increases dramatically,the power system power source changes from predictable thermal and hydro power to a new type of load with higher randomness.The unpredictable wind power and photovoltaic power generation bring great challenges to the real-time balancing of thermal power units.As the most central control actuator in the turbine,the turbine steam distribution valve is of great significance to the smooth and safe operation of the turbine along However,the valve management model is strongly nonlinear and dynamic,and the traditional identification methods cannot meet the increasingly demanding control requirements.Therefore,in this paper,we investigate the valve management model identification method for the high-pressure regulating valve in the steam inlet section,and describe the complex overall model as a simplified model with the interaction of nonlinear and dynamic models for valve management dynamic model identification.The results are experimentally verified to be better than traditional methods.
作者
马覃峰
安甦
刘明顺
焦进
陈刚
江出阳
赵勇
MA Qin-feng;AN Su;LIU Ming-shun;JIAO Jin;CHEN Gang;JIANG Chu-yang;ZHAO Yong(Power Dispatching and Control Center of Guizhou Power Grid Company,Guiyang 550002,China;Guizhou Power Grid is Uniformly Supplied by the Power Supply Bureau,Duyun 558099,China;Southern Power Grid Research Institute Co.,Ltd.,Guangzhou 510663,China)
出处
《节能技术》
CAS
2023年第2期125-129,共5页
Energy Conservation Technology
基金
中国南方电网有限责任公司科技项目(风光水火储一体化协同互补及灵活运行控制技术研究及示范应用,GZKJXM20210372)。
关键词
汽轮机模型
阀门管理
模型辨识
动态模型
once-through boiler model
steam turbine model
model calibration
characteristic analysis
