某型船用汽轮机本体模块化建模和仿真

针对船用蒸汽动力装置的基本原理,以某型船用汽轮机本体为对象,利用模块化建模理论建立了一类具有通用性的动态数学模型,给出了其在各种运行工况下的仿真结果,并进行相应的分析.通过对模型加减速动态过程的研究,并将仿真试验的结果和几种典型工况下对象的静态、动态实测值对比,证明模型具有较好的静态精确度和动态相应特性;同时较好的模拟了机组的故障特性,满足了模拟器的实际需求,为动力装置故障诊断提供了依据.模型具有较强的通用性,通过参数化过程可以方便地移植到不同容量、不同类型的机组上,在电站及动力系统仿真方面具有较好的实用性和指导作用.

Modular modeling and simulation for a certain type marine steam turbine

A universal dynamic mathematic model of a certain type marine steam turbine is established by modular modeling theories on the basic elements of steam power plant in this paper;the simulation results under different running conditions and the corresponding analysis are also given. By contrasting the simulation results with the static and dynamic measure values of objects under several typical running conditions,it proved that the model has better static definition and dynamic corresponding characteristic,the fault characteristic of units is simulated well at the same time,the practical needs of simulators are satisfied and the basis is given to diagnose the fault of power plant. The model has better universality. It is convenient to apply the model to different contents and types of units. The model has better practicability and guide action in the aspect of power station and system simulation.