给水泵汽轮机调节系统动态特性仿真分析研究  

Simulation Analysis on Dynamic Characteristics of a BFPT Control System

作　　者：马晓飞[1,2] 王军伟 鲁桂明[1,2] Ma Xiaofei;Wang Junwei;Lu Guiming(Hangzhou Steam Turbine Co., Ltd., Hangzhou 310022, China;Polytechnic Institute of Zhejiang University, Hangzhou 310058, China)

机构地区：[1]杭州汽轮机股份有限公司,杭州310022 [2]浙江大学工程师学院,杭州310058

出　　处：《发电设备》2020年第5期358-361,共4页Power Equipment

摘　　要：针对给水泵汽轮机排汽压力不稳定导致机组运行不稳定的问题,结合某热电厂的实际情况,利用Simulink软件对给水泵汽轮机调节系统进行数学建模和仿真研究,分析了给水泵汽轮机排汽压力变化对给水泵汽轮机功率的影响。结果表明:该给水泵汽轮机在大风天气影响下,排汽压力以15 kPa/min变化时,给水泵功率变化量为额定功率的2%,调节时间为41 s,该给水泵汽轮机的调节系统设计可以满足实际运行需求。To solve the problem of unstable unit operation resulted from unstable exhaust pressure of the boiler feed pump turbine(BFPT),a mathematical model was established while a simulation research was conducted on the BFPT control system using Simulink software to analyze the effects of the exhaust pressure variation on the power output of the BFPT based on actual conditions of the thermal power plant.Results show that the design of the BFPT control system can meet the requirements of actual operation in windy days,when the exhaust pressure changes at 15 kPa/min,the variation of the power output is 2%of the rated value,and the regulating time is 41 s.

关 键 词：给水泵汽轮机 排汽压力 动态特性 

分 类 号：TM621[电气工程—电力系统及自动化] TK223.5[动力工程及工程热物理—动力机械及工程]