scholarly journals Application of a Hydraulic Actuator With Solenoid Valves for a Speed Control System

2020 ◽  
Vol 8 (4) ◽  
Author(s):  
Abdullah Al-Buzayd ◽  
Nadhim Faleh ◽  
Munaf Badr
Keyword(s):  
Control System ◽  
Rotational Velocity ◽  
Speed Control ◽  
Hydraulic Actuator ◽  
Hydraulic Motor ◽  
Hydraulic Pump ◽  
System Components ◽  
Speed Control System ◽  
The Right

This paper describes the design and the execution of a speed control system for a rotary hydraulic actuator by using solenoid valves. The design is to control the rotational velocity (or the speed) of a hydraulic motor without using neither a variable hydraulic pump nor a variable hydraulic motor.  With analysis by the simulation using the package, V 4.2p/1.67 of FluidSIM 4 from FESTO. It is possible to predict the output of the rotational velocity (rpm) and next could take the right decision about the correct specifications of the system components to meet the requirements.

Study on the Speed Control System of Hydraulic Pump-Motor Based on PID Neural Network

2012 ◽  
Vol 542-543 ◽  
pp. 759-764
Author(s):  
Di Wu ◽  
Jin Yao ◽  
Yong Jing Huang
Keyword(s):  
Neural Network ◽  
Control System ◽  
Dynamic Property ◽  
Speed Control ◽  
Theoretical Models ◽  
Hydraulic Pump ◽  
Transient Time ◽  
Neural Network Controller ◽  
Speed Control System ◽  
Pid Neural Network

Theoretical models of hydraulic pump-motor and electro-hydraulic servo control systems of hydraulic pumps were established and the system transfer function was derived In view of bad dynamic property, small damp, long transient time, low precision, nonlinearity and etc existing in the speed control system of Hydraulic Pump-Motor, a controller based on PID Neural Network was designed. The simulation results showed that the PID Neural Network controller has better dynamic property, load disturbance adaptability , robustness and cranking ability than traditional PID controller.

Analysis on Failure of Alternate Control between Electronics and Hydraulic Adjustment System for a Type of Engine

2015 ◽  
Vol 778 ◽  
pp. 225-228
Author(s):  
Yan Fei Liu ◽  
Xiao Ming Wang ◽  
Shu Yun Wang ◽  
Qi Wei Wang ◽  
Chao Ji Zhou ◽  
...  
Keyword(s):  
High Pressure ◽  
Control System ◽  
Speed Control ◽  
Engine Fuel ◽  
Hydraulic Actuator ◽  
Speed Regulation ◽  
Speed Control System ◽  
Alternate Control ◽  
Adjustment System

This article briefly describes the main characteristics of a certain type of engine fuel control system, deeply researches the alternate control of electronics and mechanical hydraulic actuator in the throttle and the largest state of the high-pressure speed regulation aiming at the speed control system malfunction,and avoid the such failure of the engine.

scholarly journals PID Controller-based Object Tracking and Speed Control System for Wheeled Soccer Robot

2017 ◽  
Author(s):  
Indra Riyanto
Keyword(s):  
Control System ◽  
Pid Controller ◽  
Detection System ◽  
Speed Control ◽  
Dynamic State ◽  
Soccer Robot ◽  
Speed Control System ◽  
The Right ◽  
Static Conditions ◽  
Robot Position

This paper discussed about the detection system of ball objects and speed control system of wheeled robot football using PID controller. The object detection system uses behavior-based control methods based on the orientation of the robot position against the object position. The position of the robot is controlled to keep it perpendicular to the ball. When the position of the robot is perpendicular to the ball, the robot will move with a certain speed that is controlled by the PID controller based on the distance between the robot and the ball. Test results in static conditions (static balls) show the robot can detect the object of the ball, either when the position of the object perpendicular, to the right, or left of the robot. In testing the dynamic state (moving ball) with random directions, the robot can also move dynamically as the ball position changes.

Research on the Constant Speed Control System of Hydraulic Motor Under Variable Flow-Rate Input Based on Dual-PID Method

2013 ◽  
Author(s):  
Huang Ruijia ◽  
Shi Guanglin
Keyword(s):  
Control System ◽  
Flow Rate ◽  
Control Valve ◽  
Speed Control ◽  
Constant Speed ◽  
Flow Control Valve ◽  
Hydraulic Motor ◽  
Hydraulic Pump ◽  
Constant Frequency ◽  
Variable Displacement

With the development and application of wind power generation and wave power generation, the hydraulic pump-motor control system has a unique effect on power conversion and constant speed driving of power generator. In this situation, the hydraulic pump-motor control system is required that the output speed of the hydraulic motor must be constant when the flow-rate input is randomly varied. Therefore, the power generator driven by the hydraulic motor can maintain constant speed and generate constant frequency electricity power. Considering the particular requirement mentioned above, this paper proposes a stratified-adjustment closed-loop speed control system which is rough-tuned by a variable-displacement motor and fine-tuned by a bypass proportional flow control valve and a control strategy based on dual-PID method. When the flow-rate from the hydraulic pump is randomly varied, the displacement of the variable-displacement motor and the opening of the bypass proportional flow control valve are stratified adjusting by a dual-PID controller, so that the output speed of the variable-displacement motor can maintain constant despite the flow-rate input varying. The simulation and the experiment show that the dual-PID stratified algorithm is effective for constant speed control of hydraulic motor under variable flow-rate input, and it fulfills the requirement of generating constant frequency electricity power.

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