平行布置集装箱堆场双机调度策略仿真分析

为了评估码头管理系统内置的堆场调度策略,为码头生产操作提供决策依据,采用FlexTerm仿真方法对集装箱堆场系统进行优化。针对单块堆场,以大车平均行走距离最短、设备平均作业效率最高、内集卡堆场侧年平均等待时间最短和单船平均服务时间最短为目标,建立单堆场双场桥堆存系统调度优化模型,并利用C++结合FlexScript对堆场装卸设备的不同调度策略进行编码。利用FlexTerm软件对静态调度、堆场整体动态调度和中间区域动态调度等3种调度策略进行仿真对比,结果表明堆场整体动态调度策略在缩短单船作业时间、提高设备作业效率等方面具有一定优势。

Design and Test of Motor Double Fed Speed Regulating System for Conveyer Belt

This paper introduces the design of doubly fed system for conveyor belt motor, the system adopts stator flux orientation vector control technology and AC-AC inverter motor speed and power factor control, and carried on the test in transmission field. This paper introduces in detail the structure and characteristic of DSP system, and gives a design scheme of Doubly Fed Speed Control System of motor based on this chip.