输电系统发电机励磁自适应控制的研究

Researches on Adaptive Excitation Control of Synchronous Machine for Electric Power Transmission

本文在对被控对象的结构特征分析后指出,当串并联自适应状态调节器的基本原理应用于发电机励磁控制时,不能保证自适应律是渐近超稳定的。为此,本文导出了改进的自适应律,并设计了自适应发电机励磁调节器。利用最优控制来设计参考模型。计算机仿真给出了计算结果和响应曲线,并与常规控制以及最优控制进行了比较。

This paper point out that an adaptive control law with gradual hyperstability characteristics can not be reached when the basic theory of series-parallel state regulator is used to excitation control according to the analysis of structure of controlled object. A new improved adaptive law is derived, with the improved adaptive law, an adaptive synchronous machine excitation control is designed. A model reference is offered by using optimal control theory. The results is given by computer simulation and the corn-parision is made with the conventional control and the optimal control.