计及阀门流量特性的再热凝汽式汽轮机模型及其仿真校验  

Modeling and Calibration of Reheat Turbine in Consideration of Flow Characteristics of Turbine Valve

作　　者：陈彦峰 

机构地区：[1]国网湖南省电力公司电力科学研究院,湖南长沙410007

出　　处：《湖南电力》2017年第6期17-20,共4页Hunan Electric Power

摘　　要：针对某些火电厂汽轮发电机组存在调速系统参数测试与仿真校验结果不匹配的情况,分析了暂态稳定计算用调速系统及汽轮机模型和参数测试各个环节。分析认为:汽轮机调节阀门的流量特性是影响仿真精度的重要因素。在计及调节阀门流量特性的前提下,利用电力系统综合分析程序(PSASP)中的用户自定义建模功能,对现有调速系统及汽轮机模型进行调整和改进,并给出改进模型的使用方法。仿真结果表明:与原有模型相比,改进模型能够更好地反映现场实际设备的响应特性。Since the simulation could not agree well with the result of experiment of steam turbine speed governor system in certain thermal power plant, detail of the experiment and model of turbine and its speed governor system are analyzed. The analysis indicats that flow characteristics of turbine valve is crucial factor for accuracy of simulation. Considering influence of flow characteristics of turbine valve, the model is improved by user-defined modeling programme and application method of the improved model is given. Simulation result indicats that compared to the original model, improved model could correctly reflect response characteristics of practical steam turbine and its speed governor system.

关 键 词：调速系统参数测试 阀门流量特性 用户自定义建模 

分 类 号：TK263.7[动力工程及工程热物理—动力机械及工程]