潜艇近水面深度滑模模糊控制仿真研究

Simulation study of submarine depth SMFC controller near surface

根据潜艇近水面航行操纵控制过程的特点,设计了一种潜艇深度滑模模糊控制自动舵(SMFC)。其基本原理是在滑模控制中应用模糊逻辑控制,通过模糊控制器逼近滑模控制的非线性切换函数,达到抑制滑模控制抖振的目的。然后,对潜艇在无外界干扰和近水面航行受波浪力干扰两种情况下的深度控制进行了仿真。仿真实验结果表明:SMFC控制可以获得较好的深度保持性能,并且具有较强的抗干扰能力。与PID控制相比,SMFC控制的控制品质有了明显提高。

Based on the characteristics of submarine maneuvering near surface, a kind of SMFC depth controller for submarine is designed. The basic principle of SMFC is that SMC is applied in FLC. When SMC nonlinear switch function is approached by fuzzy logic controller, the buffeting of SMC will be restrained. The depth control of submarine is simulated without disturbance and near the surface. The results of simulation show that the SMFC controller has better performance of depth kee-ping and anti-jamming. Compared with the conventional PID controller, the amplitude and the frequency of steering controlled by the SMFC controller reduces much more obviously. Meanwhile, the control quality is improved greatly.