电液伺服控制柱塞泵转速干扰及控制策略研究  

Speed Interference and Control Strategy of Electro-hydraulic Servo Controlled Variable Axial Piston Pump

作　　者：符鹏 王剑强 王大龙 秦怀新[1] FU Peng;WANG Jianqiang;WANG Dalong;QIN Huaixin(Beijing Tianma Intelligent Control Technology Co.,Ltd.,Beijing 101399,China;School of Energy and Mining Engineering,China University of Mining and Technology,Beijing 100083,China;School of Mechanical Electronic&Information Engineering,China University of Mining and Technology,Beijing 100083,China)

机构地区：[1]北京天玛智控科技股份有限公司,北京101399 [2]中国矿业大学能源与矿业学院,北京100083 [3]中国矿业大学机电与信息工程学院,北京100083

出　　处：《控制工程》2024年第5期891-900,共10页Control Engineering of China

基　　金：天地科技股份有限公司科技创新创业资金专项基金项目(2020-TD-ZD015)。

摘　　要：为克服电机转速对电液伺服控制变量轴向柱塞泵输出特性产生的干扰问题,建立电液伺服控制轴向柱塞泵系统的Simulink-AMESim仿真模型,以恒流量为评价指标研究电机转速干扰条件下电液伺服控制变量柱塞泵恒流量控制的输出特性,分别利用传统PID及模糊自适应PID控制策略对电液伺服控制变量柱塞泵进行抗干扰控制,获得不同类型干扰情况下电液伺服控制变量泵系统的输出特性曲线。仿真结果表明:恒流量控制下,电液伺服控制变量柱塞泵的流量波动为3.80 L/min,当电机转速分别存在正弦波、方波及三角波脉冲扰动工况时,流量波动分别上升至9.34 L/min、9.59 L/min、4.52 L/min。分别利用PID及模糊自适应PID对电液伺服控制变量柱塞泵进行抗干扰控制,流量波动分别降低了3.41 L/min和5.90 L/min。In order to overcome the interference problem caused by the motor speed on the output characteristics of the electro-hydraulic servo controlled variable axial piston pump,a Simulink-AMESim simulation model of the electro-hydraulic servo controlled axial piston pump system is established,and the constant flow rate is used as the evaluation index to study the motor speed interference.The output characteristics of the constant flow control of the electro-hydraulic servo-controlled variable piston pump under the conditions are analyzed.Traditional PID and fuzzy adaptive PID control strategies are used to perform anti-interference control on the electro-hydraulic servo-controlled variable piston pump to obtain the electro-hydraulic control under different types of interference conditions.Output characteristic curve of servo-controlled variable pump system.The simulation results show that the flow fluctuation of the electro-hydraulic servo controlled variable piston pump under constant flow control is 3.80 L/min.When the motor speed is disturbed by sine wave,square wave and triangle wave pulses,the flow fluctuations increased to 9.34 L/min,9.59 L/min and 4.52 L/min.Using PID and fuzzy adaptive PID to perform anti-interference control on the electro-hydraulic servo controlled variable piston pump,the flow fluctuations were reduced by 3.41 L/min and 5.90 L/min respectively.

关 键 词：转速干扰 轴向柱塞泵 联合仿真 恒流量 模糊PID 

分 类 号：TH322[机械工程—机械制造及自动化]