智能液压动力单元电液伺服系统研究

智能液压动力单元是以液压缸为执行元件, 同时将能源、控制调节、状态监测及辅助装置高度集成为一体的智能化液压控制系统。智能液压动力单元采用直驱式容积控制技术, 具有节能、高效、智能化、独立控制、高度集成化、通用性强、性价比高等特点。给出了智能液压动力单元关键设计要素, 通过建立系统数学模型, 分析影响动态特性的结构参数, 设计适用于智能液压动力单元的模糊PID控制器, 利用AMESim/Simulink进行联合仿真, 并搭建智能液压动力单元实验台, 验证优化设计分析及模糊PID控制器的可行性。

Electro-hydraulic Servo System of Intelligent Hydraulic Power Unit

Intelligent hydraulic power unit consists of a hydraulic cylinder, the energy device, the control adjustment device, the condition monitoring device and the auxiliary device. Intelligent hydraulic power unit adopts the technology of direct drive volume control, and has the advantages of energy-saving, high efficiency, intelligent independent control, highly integration, versatility and high cost-performance ratio. Key design elements of intelligent hydraulic power unit are pointed out. By establishing a system mathematical model, the design parameters that affect system dynamic performance are analyzed. A fuzzy PID controller is designed for intelligent hydraulic power unit, and the feasibility of the design method and fuzzy PID controller is verified by carrying out an AMESim/Simulink joint simulation and building an intelligent hydraulic power unit experiment platform.