[1]吕强.感应交流电机变频调速器自动化稳态控制技术[J].机械与电子,2023,41(09):32-36.
　LYU Qiang.Automatic Steady State Control Technology of Induction AC Motor Variable Frequency Governor[J].Machinery & Electronics,2023,41(09):32-36.
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感应交流电机变频调速器自动化稳态控制技术()

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《机械与电子》[ISSN:1001-2257/CN:52-1052/TH]

Title:: Automatic Steady State Control Technology of Induction AC Motor Variable Frequency Governor

Author(s):: LYU Qiang; ( China Energy Investment ( Tianjin ) Port Affairs Co. , Ltd. , Tianjin 300456 , China )

Keywords:: induction AC motor ; variable frequency speed governor ; automatic steady-state control ; frequency conversion parameters ; reactive power compensation function

摘要:: 针对变频调速器控制电路中参数动态变化特性较强、电机稳定特性难以捕捉及固有互感关系较差问题,提出一种基于变频调速器的自动化稳态控制技术。根据电机内定子及转子的感应矩阵,建立电机内部电力参数的动态变化数学模型,计算二者间互感关系变动时对电路稳态的影响,推导互感矩阵。以变频控制器作为自动化控制应用载体,根据电路的实时数据,调节变频参数,用于反馈不稳定性信号,并采用变频控制器自动输出控制数值,建立无功补偿函数,根据功率、电压及电流值的减少量,进行定量补偿,完成感应交流电机变频调速器自动化稳态控制。实验数据表明,所提方法应用下,电压和电流分布较为规律,功率输出结果较为稳定、均衡,对电路稳定改善效果较佳。

Abstract:: Aiming at the problems of strong dynamic change characteristics of parameters in the control circuit of variable frequency governor , being difficult to capture the stability characteristics of motor and poor inherent mutual inductance , an automatic steady-state control technology based on variable frequency governor is proposed. According to the induction matrix of the stator and rotor in the motor , the dynamic change mathematical model of the internal power parameters of the motor is established , the influence of the mutual inductance relationship among the two on the circuit stability is calculated , and the mutual inductance matrix is derived. The variable-frequency controller is used as the application carrier of automatic control. According to the real-time data of the circuit , the variable-frequency parameters are adjusted to feed back the unstable signals. The variable-frequency controller is used to automatically output the control value , establish the reactive power compensation function , and make quantitative compensation according to the reduction of power , voltage and current value to complete the automatic steady-state control of the induction AC motor variable-frequency governor. The experimental data show that the voltage and current distribution are more regular , the power output is more stable and balanced , and the improvement effect on circuit stability is better.

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备注/Memo:: 收稿日期: 2022-08-24
作者简介:吕强 ( 1984- ),男,陕西府谷人,工程师,研究方向为港口物流电气设备控制及应用。

更新日期/Last Update: 2023-09-27