基于传递系数方法的贯流转桨式水轮机的仿真模型

The Simulation Model of Through Flow Kaplan Turbine and Its Nonlinear Control

对于不同类型的水轮机而言,其仿真模型的建立是电力系统中的一类重要问题。对于最近几年得到比较大规模应用的贯流转桨式水轮机而言,从水力学的角度出发进行的研究已经足够,但是却缺乏比较系统的应用于电力系统能够使用的比较精确反应其运动特性的仿真模型。本文从水轮机最常用的仿真建模方法出发,写出了基于水轮机传递系数的仿真模型,利用这类模型来建立贯流转桨式水轮机和同步发电机的非线性控制理论构成的协联控制模型,并利用这种模型来进行仿真实验,验证模型的准确性。

For different types of turbine,the establishment of simulation model is one of the important problems in power system. In recent years,a large number of applications have been compared through flow Kaplan turbine. From the point of view of hydraulics research conducted is sufficient,but there is a lack of comparative systematic applied in electric power system able to used simulation model of the motion characteristics of a more accurate reaction. This paper depended on the characteristic curve,calculated a simulation model based on hydraulic turbine transfer coefficient,use this kind of model to build through flow turbine and the model of synchronous generator system controlled by a nonlinear controlling means to achieve a compound control model. And use this kind of model to simulation,to validate the accuracy of the model.