【摘要】 为解决传统的单缸塔式起重机在顶升过程中抗干扰性差和安全性低的问题，因泵控系统能量效率高、压力损失低，更适合高精度同步控制，提出一种泵控分布式液压回路系统实现双液压缸的同步控制。该系统采用交叉耦合控制策略，并结合改进的BP-PID控制方法，以提升同步精度和动态响应性能。将改进BP-PID与传统PID和模糊PID对比，通过AMESim/Simulink进行联合仿真分析。结果表明：相较于传统PID控制器，改进BP-PID达到稳态的时间缩短了49.88%,稳态误差降低了0.07 mm,增强了单缸系统的响应速度与鲁棒性；与模糊PID算法相比，改进BP-PID达到稳定时间缩短了49.18%,稳态误差降低了0.04 mm;双缸最大同步误差为1.49 mm,稳定后降至0.18 mm,有效提高了系统的抗干扰能力、鲁棒性和安全性。更多还原

【Abstract】 To address the issues of poor disturbance resistance and low safety in the lifting process of traditional single-cylinder tower cranes, a pump-controlled distributed hydraulic circuit system was proposed for the synchronous control of dual hydraulic cylinders, due to the high energy efficiency and low pressure loss of pump-controlled system which is more suitable for high-precision synchronous control applications.The cross-coupled control strategy combined with improved BP-PID control method was adopted by the system to enhance synchronization accuracy and dynamic response performance.The improved BP-PID was compared with the traditional PID and the fuzzy PID,and the joint simulation analysis was carried out by AMESim/Simulink.The results show that compared with the traditional PID controller, the steady-state time of improved BP-PID is shortened by 49.88%,the steady-state error is reduced by 0.07 mm, and the response speed and robustness of the single-cylinder system are enhanced.Compared with the fuzzy PID algorithm, the stability time of the improved BP-PID is shortened by 49.18%,the steady-state error is reduced by 0.04 mm.The maximum synchronization error of the twin cylinder is 1.49 mm, which is reduced to 0.18 mm after stabilization, which effectively improves the anti-interference ability, robustness and security of the system.更多还原