衡功率下煤矿掘进机异步电机转速调节方法  

Speedregulation method of asynchronous motor of coal mine boring machine under constant power

作　　者：张双亮 邰凯红 景振宁 ZHANG Shuangliang;TAI Kaihong;JING Zhenning(Chenjiagou Coal Mine,Gansu Huating Coal&Power Co.,Ltd.,Pingliang 744100,China;Huating Coal Industry Group Co.,Ltd.,Pingliang 744100,China)

机构地区：[1]甘肃华亭煤电股份有限公司陈家沟煤矿,甘肃平凉744100 [2]华亭煤业集团有限责任公司,甘肃平凉744100

出　　处：《自动化与仪器仪表》2025年第2期111-115,120,共6页Automation & Instrumentation

基　　金：甘肃省电力公司重点科技项目(2022408036)。

摘　　要：当前针对衡功率下煤矿掘进机异步电机转速调节受到多因素影响,在不同因素下的衡功率要求也不同,导致衡功率本身特性不明确,影响异步电机转速调节准确性。针对该问题,考虑多因素扰动,研究衡功率下煤矿掘进机异步电机转速调节方法。考虑多因素扰动条件,构建多因素扰动对煤矿掘进机异步电机的影响函数,从而求解具体的衡功率特性,明确衡功率特征。基于明确的衡功率特性,定义异步电抗指标,根据异步电机衡功率因数计算结果,结合电力谐波,实现衡功率下电机转速调节。实验结果表明,该调节放阿飞可以有效将衡功率设定值控制在煤矿掘进机异步电机额定功率的1.1倍之下,并且随着负载增加其电机转速降低幅度较小,最低转速仍在700 r/min以上,在其他扰动因素下,转速仍保持720 r/min以上,该方法具备较好的抗扰动性能。At present,the speed regulation of asynchronous motor of coal mine boring machine under balanced power is affected by many factors,and the balance power requirements are different under different factors,which leads to the unclear characteristics of the balance power itself and affects the accuracy of the speed regulation of asynchronous motor.To solve this problem,considering the disturbance of many factors,the speed regulation method of asynchronous motor of coal mine boring machine under balanced power is studied.Considering the multi-factor disturbance conditions,the influence function of multi-factor disturbance on the asynchronous motor of coal mine boring machine is constructed,so as to solve the specific balance power characteristics and clarify the balance pow-er characteristics.Based on the definite balance power characteristic,the asynchronous reactance index is defined.According to the calculation result of balance power factor and power harmonics,the motor speed adjustment under balance power is realized.The ex-perimental results show that the regulator can effectively control the balancing power set value below 1.1 times of the rated power of the asynchronous motor of the coal mine boring machine,and with the increase of the load,the motor speed decreases less,the mini-mum speed is still above 700 r/min,and the speed remains above 720 r/min under other disturbance factors.The method has good anti-disturbance performance.

关 键 词：煤矿掘进机 多因素扰动 异步电机 衡功率 电力谐波 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]