船舶发电机组的励磁系统模糊PID控制研究

本文针对励磁系统的经典PID算法需要被控对象的精确模型、在非线性系统中的性能不够理想这一缺点,分析了船舶柴油发电机组的控制。结合模糊控制和经典PID控制,设计同步发电机励磁系统的模糊PID控制器.模糊推理机的输入为船舶发电机端电压的偏差及其变化率经模糊化处理后的模糊量。在Matlab环境下进行仿真,结果表明模糊PID控制器使发电机的端电压更加稳定,具有较好的静态和动态性能。     

Development of fuel cell hybrid powertrain research platform based on dynamic testbed

An experimental research platform based on a dynamic testbed is developed and applied for fuel cell hybrid powertrain integration and control. A driver brake model is added to the dynamic testbed to simulate the braking process of an electric vehicle. Sub-systems of the fuel cell hybrid powertrain are tested, and characteristic parameters are obtained. A simulation platform is constructed in LabVIEW environment, and its validity is verified by dynamic test results. A real time control system is developed with an embedded PC for the function of rapid control prototyping. Using this platform, fuel cell battery hybrid and fuel cell supercapacitor hybrid configurations are investigated. This platform provides a powerful tool for fuel cell powertrain research and development.     

城市轨道交通线网线路敷设方式研究

结合广州市城市轨道交通线网建设规划的经验,在广州市城市轨道交通线网资源共享规划研究的基础上,对线路敷设方式规划的必要性、主要内容、影响因素及确定原则进行了阐述,并对地面线、高架线、地下线三种形式在适用范围、对城市土地利用、对环境影响、工程造价等方面进行了综合分析比较,为线网线路敷设规划提供技术支持。     

反舰导弹武器系统的跟踪系统作战反应时间分析

由于跟踪系统搜索,截获和跟踪目标反应时间服从斯威林分布,在利用蒙特卡洛法对连续随机变量进行模拟时,采用了ITM逆转方法。运用上述方法对反舰导弹武器系统的跟踪系统作战反应时间进行分析研究,得到了较好的仿真结果。