300MW机组除氧给水系统的数学建模与仿真

Feed-water System Modeling and Simulation of 300 MW Units

以质量和能量守恒定律为基础，应用传热学及泵的有关理论，建立了给水系统中除氧器、给水泵、小汽机、高压加热器等设备的动态数学模型。并采用模块化的建模方法，建立了给水系统的全工况动态仿真模型，同时分析了仿真结果。此模型具有很高的精度和通用性，可适用各种工况下的仿真运行，已应用于对实际机组的仿真。

Based on the conservation of mass and energy, applying the theories of transfer heat and pump, the paper gives the methods and process how to build the dynamics mathematical simulation model of feed-water system. Lastly, analyzing the simulating results under several typical cases, the model has applied to simulate the real units, and has high accuracy and generality.