Abstract

In this paper, a block diagram of a power line–electric drive–pump–pipeline system consisting of individual interconnected elements that makes it possible to use the structural method for mathematical modeling is presented. The results of the modeling confirm the viability of the proposed mathematical models. It is shown that, due to a considerable inertia of turbo mechanisms, the electromagnetic phenomena in the electric drive can be neglected so as to simplify significantly the structure of the studied system. Soft acceleration of the asynchronous motor by means of a soft starter makes it possible almost to eliminate the shock surges of the moment, which has a positive effect on the turbo mechanism operation. However, the high-frequency component of voltage, which emerges due to the soft starter operation, can affect the operation of other energy consumers. The applicability and efficiency of using polar coordinates to construct mathematical models of complex technical systems containing three-phase electromechanical energy transducers is confirmed.

中文翻译：

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电力线-电力驱动-泵-管道电源技术综合体的数学建模

摘要

在本文中，给出了由单独的相互连接的元件组成的电力线-电力驱动-泵-管道系统的框图，该框图使得可以将结构方法用于数学建模。建模结果证实了所提出数学模型的可行性。结果表明，由于涡轮机构具有相当大的惯性，可以忽略电驱动器中的电磁现象，从而大大简化了所研究系统的结构。借助软启动器对异步电动机进行软加速，几乎可以消除力矩冲击，这对涡轮机构的运行产生积极影响。但是，由于软启动器操作而产生的电压的高频分量，会影响其他能源消耗者的运作。证实了使用极坐标构建包含三相机电能量换能器的复杂技术系统的数学模型的适用性和效率。