船舶柴油发电机组的建模与自适应控制

Modeling and Control of Marine Diesel Generator Set

为了提高自适应算法对船舶柴油发电机组转速控制的精度,在充分熟悉船舶发电机组结构之后,文章中提出了一种对其进行机理建模的新方法。该方法对非线性强、大滞后并且结构复杂的船舶发电机组在允许范围内进行线性化,从电磁学、动力学等理论的基本原理出发,推导出与实际相吻合的数学模型,最后对其采用无模型自适应控制器进行调速控制。仿真结果表明,系统在给定有无噪声干扰两种情况下,输出几乎无超调,抗干扰性强,具有良好的动态特性和稳定性。

To improve the speed control precision of marine diesel generator set of adaptive algorithm,we propose a new method for modeling after fully familiar with the structure of marine diesel generator set.This method linearizes it within the allowable range from the basic principles of electromagnetism and dynamics theory and deduces the mathematical model which matches the actual model.Last,we control its speed with model-free adaptive controller.The simulation results show that no matter whether the system is given a noise disturbance,the output is almost no overshoot and it has strong anti-interference ability,good dynamic characteristics and good stability.