摘要
同步发电机励磁系统的基于模型的控制算法过分依赖模型,很难保证其控制效果。本文尝试将无模型自适应控制算法应用于励磁系统的控制。首先,介绍了励磁系统的模型和无模型自适应控制算法的基本原理。然后,对于具有稳定增益的系统,提出了改进的无模型控制算法。并将其应用于确定工况的发电机励磁系统的控制。仿真结果显示:改进的无模型控制算法的快速性提高;在不同的电压传感器故障情况下,无模型控制显示了很强的自适应性和鲁棒性。
Control algorithms of a synchronous generator excitation control system based on plant＇s model rely on plant ＇s model overly, so control performance can not be ensured. This paper tries to introduce MFAC algorithm into excitation control. Firstly, model of the excitation and basic principle of MFAC algorithm are discussed, and then an improved MFAC algorithm on system that has gain of stable state is presented. The excitation control system is designed on MFAC algorithm. Results of simulation show that the rapidity of improved MFAC algorithm is improved. Meanwhile, when voltage sensor is faulted, this algorithm has stronger self-adaptability and robustness.
出处
《船电技术》
2015年第7期76-80,共5页
Marine Electric & Electronic Engineering
关键词
同步发电机励磁控制
无模型自适应控制算法
自适应性
synchronous generator
excitation control
model free active control algorithm
self-adaptivity
