Experimental study of the VFD’s speed stabilization efficiency under torque disturbances

Q2 Energy
V. Kodkin, A. Anikin
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引用次数: 4

Abstract

The article presents a technique for experimental research of variable frequency drives experiencing periodic torque disturbances of variable frequency. The technique is based on the nonlinear transfer function of a link of an asynchronous electric motor, which forms an electromagnetic torque, proposed in previously published articles. The dependence of the transfer function on the frequency of the stator voltage and slip determines the research methodology. Experiments have shown the advantage of the dynamic characteristics of a drive with a positive feedback on the stator current over electric drives with traditional control methods (vector and scalar sensorless), and in terms of dynamic characteristics they also exceed drives with a vector control closed in motor speed. These advantages are retained when the frequency of change of the disturbing torque is changed from 0 to 5 Hz.
转矩扰动下变频器稳速效率的实验研究
本文提出了一种针对周期性变频转矩扰动的变频驱动器进行实验研究的方法。该技术基于异步电动机连杆的非线性传递函数,该传递函数形成电磁转矩,在先前发表的文章中提出。传递函数对定子电压和转差频率的依赖关系决定了研究方法。实验表明,具有定子电流正反馈的驱动器的动态特性优于具有传统控制方法(无矢量和标量传感器)的电驱动器,并且在动态特性方面也优于具有电机速度封闭矢量控制的驱动器。当干扰转矩的变化频率从0变为5hz时,这些优点仍然保留。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
International Journal of Power Electronics and Drive Systems
International Journal of Power Electronics and Drive Systems Energy-Energy Engineering and Power Technology
CiteScore
3.50
自引率
0.00%
发文量
0
期刊介绍: International Journal of Power Electronics and Drive Systems (IJPEDS) is the official publication of the Institute of Advanced Engineering and Science (IAES). The journal is open to submission from scholars and experts in the wide areas of power electronics and electrical drive systems from the global world. The scope of the journal includes all issues in the field of Power Electronics and drive systems. Included are techniques for advanced power semiconductor devices, control in power electronics, low and high power converters (inverters, converters, controlled and uncontrolled rectifiers), Control algorithms and techniques applied to power electronics, electromagnetic and thermal performance of electronic power converters and inverters, power quality and utility applications, renewable energy, electric machines, modelling, simulation, analysis, design and implementations of the application of power circuit components (power semiconductors, inductors, high frequency transformers, capacitors), EMI/EMC considerations, power devices and components, sensors, integration and packaging, applications in motor drives, wind energy systems, solar, battery chargers, UPS and hybrid systems and other applications.
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