基于PLC控制的电机变频调速装置
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摘要
针对煤矿井下运输车辆牵引电机调速问题,将变频器以及PLC控制技术应用于运输车辆牵引系统中,利用变频调速技术,实现对牵引系统的转矩控制,优化V/F曲线,减少电机的输出力矩,降低输入电流,减少启动惯性对车辆设备的转速冲击,在延长车辆设备使用寿命的同时,达到节能的目的。
Aiming at the problem of speed regulation of traction motor of underground transportation vehicle in coal mine, the frequency converter and PLC control technology are applied to the traction system of transportation vehicle.The torque control of traction system is realized by using frequency conversion speed regulation technology, and the VF curve is optimized. Reduce the output torque of the motor, reduce the input current, reduce the impact of the starting inertia on the rotational speed of the vehicle equipment, prolong the service life of the vehicle equipment, and achieve the purpose of saving energy while prolonging the service life of the vehicle equipment.
Aiming at the problem of speed regulation of traction motor of underground transportation vehicle in coal mine, the frequency converter and PLC control technology are applied to the traction system of transportation vehicle.The torque control of traction system is realized by using frequency conversion speed regulation technology, and the VF curve is optimized. Reduce the output torque of the motor, reduce the input current, reduce the impact of the starting inertia on the rotational speed of the vehicle equipment, prolong the service life of the vehicle equipment, and achieve the purpose of saving energy while prolonging the service life of the vehicle equipment.
引文
[1]李秉全.基于PLC与触摸屏的矿井提升机变频调速改造[J].煤矿机电,2011(1):93-95.
[2]徐昆鹏.带式输送机变频调速驱动系统的研究[D].南京:南京理工大学,2012:23-25.
[3]张顺星,梁小宜.基于Modbus协议的PLC与变频器通信控制研究与实现[J].电气自动化,2015,37(4):84-86.
[4]马新生.基于PLC的矿井提升机变频控制系统优化设计[J].科学论坛,2011(6):51-52.
[5]王研.基于RS485的PLC与变频器通信实现[J].现代机械,2010(4):41-43.
[6]黄金凤,张进,李占贤,等.PLC与变频器间的通信实现[J].工矿自动化,2007,35(5):95-97.
[2]徐昆鹏.带式输送机变频调速驱动系统的研究[D].南京:南京理工大学,2012:23-25.
[3]张顺星,梁小宜.基于Modbus协议的PLC与变频器通信控制研究与实现[J].电气自动化,2015,37(4):84-86.
[4]马新生.基于PLC的矿井提升机变频控制系统优化设计[J].科学论坛,2011(6):51-52.
[5]王研.基于RS485的PLC与变频器通信实现[J].现代机械,2010(4):41-43.
[6]黄金凤,张进,李占贤,等.PLC与变频器间的通信实现[J].工矿自动化,2007,35(5):95-97.