基于矢量控制的多相感应电机电子变极调速技术

发布时间：2019-03-29 13:00

【摘要】：为了拓宽交流传动系统的恒功率调速运行范围,在研究多相系统变换理论和多相电机矢量控制的基础上,提出了一种基于转子磁场定向矢量控制的多相感应电机电子变极调速方法。该方法不需要额外增加电机的容量或电流,通过转子磁场定向矢量控制产生不同平面的谐波电流,驱动电机旋转,从而控制电机实现了在不停电情况下的电子变极,而且变极过程平滑,无大的转矩波动。本文以九相感应电机为例,对提出的方法进行实验验证,给出了其在转子磁场定向矢量控制下的3对极和9对极之间相互电子变极的实验结果。实验结果表明,所提出的方法能够在不停电的情况下实现电子变极调速,有效地提高了电机恒功率调速运行范围。
[Abstract]:In order to widen the running range of constant power speed regulation of AC drive system, on the basis of studying the theory of multi-phase system transformation and vector control of multi-phase motor, This paper presents an electronic pole-changing speed regulation method for multi-phase induction motor based on rotor field-oriented vector control. This method does not need to increase the capacity or current of the motor, and generates harmonic currents in different planes by rotor magnetic field oriented vector control, and drives the motor to rotate, thus controlling the electronic pole change of the motor without blackout. Moreover, the pole-changing process is smooth and has no large torque fluctuation. Taking the nine-phase induction motor as an example, the proposed method is verified experimentally and the experimental results of the mutual electron pole variation between the three poles and the nine poles under the rotor magnetic field-oriented vector control are given. The experimental results show that the proposed method can effectively improve the running range of the constant power speed regulation of the motor, and can realize the speed regulation of the electronic pole-changing without blackout.
【作者单位】：浙江大学电气工程学院;
【基金】：国家重点基础研究发展规划(973计划)(2013CB035604) 国家自然科学基金(51177150) 浙江省公益性技术应用研究计划(2011C21022)资助项目
【分类号】：TM346

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