平衡式复合齿轮泵变频调速节能控制研究  

Research on Energy-Saving Control of Variable FrequencyS peed Regulation of Balanced Compound Gear Pump

作　　者：马江涛 杨敬[1] MA Jiang-tao;YANG Jing(Taiyuan University of Technology,Shanxi Taiyuan 030000,China)

机构地区：[1]太原理工大学,山西太原030000

出　　处：《计算机仿真》2021年第12期193-196,375,共5页Computer Simulation

摘　　要：当前平衡式复合齿轮泵变频调速节能控制研究主要受到调节时长、转矩脉动、电压超调影响,运行效率大幅度下降,导致能耗较高。针对上述问题,提出平衡式复合齿轮泵变频调速节能控制方法。通过液压马达的排量与转速公式,获取内齿轮转速与齿轮泵流量。依据定子绕组切割旋转磁场所产生的电动势,得到气隙磁通与电压频率之间关联性,利用电势与频率同步协调控制完成电机变频调速。通过数学分析齿轮泵的损耗结构及其物理特性,实现整体能量损耗等效变换,达到节能控制目的。仿真结果表明,所提方法能够依据负载变化自动调节电压频率,有效完成节能控制,且效率更为理想,具备一定可行性与实践性。At present, the study on energy-saving control of variable frequency speed regulation of balanced composite gear pump is mainly influenced by the regulation time, torque ripple, and voltage overshoot. Therefore, a method of energy-saving control for variable frequency speed regulation of balanced compound gear pump was put forward. The rotational speed of the internal gear and the flow rate of the gear pump were obtained by the formula of displacement and speed of the hydraulic motor. According to the electromotive force generated by cutting the rotating magnetic field of the stator winding, the correlation between air-gap flux and voltage frequency was obtained, and then the variable frequency speed regulation of the motor was completed by synchronous and coordinated control between potential and frequency. Based on the mathematical analysis of the loss structure and physical characteristics of the gear pump, the equivalent transformation for the overall energy loss was completed. Thus, energy-saving control was achieved. Simulation results show that the proposed method can automatically adjust the voltage frequency according to different loads, so it can effectively achieve energy-saving control. meanwhile, it has certain feasibility and practicality.

关 键 词：平衡式 复合齿轮泵 变频调速 节能控制 定子转速 变量分析 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]