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首页> 外文期刊>IEEE Transactions on Industry Applications >Modeling Power Flow in a Hoist Motor of a Rubber-Tired Gantry Crane
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Modeling Power Flow in a Hoist Motor of a Rubber-Tired Gantry Crane

机译：轮胎式龙门起重机的起重电动机中的功率流建模

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摘要

A method for calculating the power demand of the hoist motor in rubber-tired gantry (RTG) cranes with nonparallel cables has been developed to measure the energy consumption in a typical lift cycle. From measurements taken at the Port of Felixstowe, it has been observed that the peculiar geometrical characteristics of the hoisting mechanism cause the power demand to increase with the container height in constant rotor speed conditions. The change in the angle of the hoisting ropes causes an increase in torque load and power consumption. By using information extracted from the crane’s geometry, it has been possible to calculate the potential energy increase given the weight and vertical position of the container. The load torque on the hoist motor and the vertical speed of the mass have also been calculated, allowing for the modeling of the hoist motor power consumption when lifting containers with constant rotational speed. The proposed model has been compared to a constant power demand approximation, showing a higher accuracy for masses below 40 t.
机译：已开发出一种用于计算带有非平行电缆的轮胎式龙门起重机（RTG）起重机中提升电机功率需求的方法，以测量典型提升周期中的能耗。通过在费利克斯托港进行的测量，可以看出，在恒定的转子速度条件下，提升机构的特殊几何特性会导致功率需求随容器高度的增加而增加。提升绳索角度的变化导致扭矩负载和功率消耗增加。通过使用从起重机的几何形状中提取的信息，可以根据给定的集装箱重量和垂直位置来计算势能增加。还计算了提升电机上的负载转矩和质量的垂直速度，从而可以模拟以恒定转速提升集装箱时提升电机的功耗。所提出的模型已与恒定功率需求近似进行了比较，显示出对于40 t以下的质量而言，其精度更高。

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