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泵阀复合式电液负载模拟器流量压力协调控制

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针对地面半实物负载模拟实验存在的被测试舵机运动干扰问题，提出流量压力协调控制电液负载模拟方法，并基于泵阀复合电液负载模拟器的加载给出方案。围绕泵阀复合电液负载模拟器建立系统数学模型;基于对泵阀职能分工的思想，利用反步滑模控制器设计方法，分别为泵控闭式子系统和阀控子系统设计速度伺服和力伺服控制器。通过联合仿真，验证所提出的技术方案和控制策略的可行性及有效性。结果表明:所提流量压力协调控制电液负载模拟方法具有优良的加载性能，且对降低系统功耗有显著效果。
Coordinated Control of Flow and Pressure of Pump-Valve Combined Electro-Hydraulic Load Simulator
Aiming at movement disturbances of steering engine in the ground semi-physical load simulation experiment,an electro-hydraulic load simulation method with flow-pressure coordinated control was proposed,and a scheme of pump-valve combined electro-hydraulic load simulator was proposed.The mathematical model of the system was built around the pump-valve combined electro-hydraulic load simulator.Based on the function-division idea of the pump and valve,the speed servo controller and the force servo con-troller were designed for the pump controlled closed subsystem and the valve controlled subsystem respectively by using the back-step-ping sliding mode controller design method.Through the co-simulation,the feasibility and effectiveness of the proposed technical scheme and control strategy were verified.The results show that the electro-hydraulic load simulation method of flow pressure coordinated control has excellent loading performance,and has a remarkable effect on reducing system power consumption.

load simulationpump-valve combinedcoordinated controlfunction divisionback-stepping sliding mode control

李标兵、汪成文、赵二辉

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太原理工大学机械与运载工程学院,山西太原 030024

太原理工大学新型传感器与智能控制教育部重点实验室,山西太原 030024

负载模拟 泵阀复合 协调控制 职能分工 反步滑模法

山西省重点研发计划山西省回国留学人员科研项目山西省自然科学基金面上项目中国博士后科学基金山西省青年科学基金

201903D121069HGKY2019016202103021231552019M661062201901D211021

2024

10.3969/j.issn.1001-3881.2024.04.023

机床与液压
中国机械工程学会 广州机械科学研究院有限公司

机床与液压

CSTPCD北大核心
影响因子：0.32
ISSN：1001-3881
年,卷(期)：2024.52(4)
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