基于改进的混沌优化的翼滑艇推进系统仿真

通过Matlab平台建立翼滑艇推进系统的数学仿真模型,将翼滑艇的快速性指标和经济性指标的加权形式作为推进系统优化目标,并以Simulink进行实时仿真分析。首先,运用改进的混沌优化算法对模糊控制系统进行优化,求解最小控制目标值,然后对转速控制和螺距控制的控制器参数进行优化,并通过模糊控制器对不同工况下主机转速和可调桨螺距进行控制。最后,对比分析了常规模糊控制器与混沌算法优化后的模糊控制器之间的差别。结果表明,优化后的推进系统在进行航速控制时不仅超调量小,而且稳定性好,该优化方法有效可行。

Simulation of Gliding-Hydrofoil Craft Propulsion System Using Improved Chaos Optimum Algorithm

For modeling the optimum propulsion system of gliding-hydrofoil craft,a mathematic model was established in the software MATLAB by applying the weighting factors of rapidity and economical efficiency.And corresponding simulation analysis was performed on SIMULINK.The improved chaos optimum algorithm was adopted to optimize the fuzzy control system for obtaining minimum desired value.The rotate speed of prime（RMP） engine and pitch of APP propeller were optimized,realizing optimum control of fuzzy controller over the RMP of prime engine and the pitch of APP propeller at various operating conditions.The optimized controller via an improved algorithm is compared with conventional controller.The results show that the optimized controller of propulsion system is valid,which allows small overshoots in speed control and also presents a good stability.