Li Z.,Xian University of Architecture&Technology |
Gu L.,Xian University of Architecture&Technology |
Ma Y.,Xian University of Architecture&Technology
Zhongguo Jixie Gongcheng/China Mechanical Engineering | Year: 2016
The principles and characteristics of feedforward control and feedback control were studied, a method called the load feedforward and feedback compounded compensation control strategy was proposed herein to realize the constant flow control of hydraulic power supply under typical operating conditions. Based on the experimental platform of mechanical-electrical-hydraulic system, a Simulink model of variable speed hydraulic power supply was established. The simulations and experiments were carried out respectively under a simple PID feedback control and a compounded compensation control strategy. The results verify the compounded compensation control strategy is efficient and feasible in constant flow control of hydraulic power supply, and the resistance to load disturbance of the compounded compensation control strategy is superior to the simple PID control. © 2016, China Mechanical Engineering Magazine Office. All right reserved.