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This paper provides an adaptive PID controller based on back propagation (BP) neural network applied to pressure control of hydraulic system. The controller has many advantages like that more convenient in parameter regulating, better robust, more independence and adaptability in the hydraulic system. According the requirements of system performance, this paper discussed the corresponding learning...
This paper discusses and analyses precise hydraulic pressure control of VVVF hydraulic system. The mathematical model of system is established and PID control law is adopted. Numerical simulation of PID controller is carried out with the SIMULINK of MATLAB. In the non-linear, time-varying VVVF hydraulic system, however, conventional PID control often cannot satisfy the request of precise pressure...
As an important indicator of the accuracy of solenoid valve - solenoid valve seal performance directly influences the quality and precision of valve. In this paper, software and hardware platform of the test of solenoid valve seal performance are introduced, seal performance test method is discussed. Fuzzy control algorithm is studied in controlling the VVVF, and fuzzy control is applied in hydraulic...
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