基于变论域模糊PID的船舶柴油发电机调速系统

Rotation Speed Control of Marine Diesel Engine Generator Based on Variable Universe Fuzzy-PID

为实现船舶电力系统的稳定性控制,对船舶柴油发电机调速系统的控制进行研究,设计基于变论域模糊PID的柴油机调速系统。选取基于模糊规则的伸缩因子,将变论域模糊控制思想与常规PID相结合,形成变论域模糊PID控制系统结构。在不同工况下对常规PID控制、模糊PID控制和变论域模糊PID控制的柴油发电机调速系统的仿真曲线进行对比分析。仿真结果表明:变论域模糊PID控制算法具有更快的响应速度、更好的稳定性、更小的超调量和更强的自适应性。

Rotation speed control technologies for the marine diesel engine generator are investigated, and a diesel engine generator speed control system based on variable universe fuzzy-PID is designed. The system is basically PID type but the scale factors are adjusted according to the fuzzy rules, which makes it ＂variable universe＂. The dynamic response curves of the system are compared with those of a conventional PID controller, which shows that variable universe fuzzy-PID algorithm makes the system response faster with better stability, smaller overshoot, and better adaptability.