scholarly journals Pressure versus Flow Characteristics of a Diaphragm Type Pneumatic Pressure Control Proportional Valve

1999 ◽  
Vol 1999 (4) ◽  
pp. 413-418 ◽  
Author(s):  
Kenji ARAKI ◽  
Naike CHEN
Keyword(s):  
Flow Characteristics ◽  
Pressure Control ◽  
Proportional Valve ◽  
Pneumatic Pressure

Study on the Characteristics of a New Type Pneumatic Pressure Regulator

2013 ◽  
Vol 347-350 ◽  
pp. 157-161
Author(s):  
Jun Gong Ma ◽  
Xin Hua Chen
Keyword(s):  
Mechanical Valve ◽  
Pressure Control ◽  
Superior Performance ◽  
Mechanical Pressure ◽  
Pressure Regulator ◽  
Valve Body ◽  
Pneumatic Pressure ◽  
Output Pressure ◽  
Flow Disturbances ◽  
Downstream Flow

ressure regulators are very important elements in pneumatic systems. Purely mechanical pressure regulators are commonly used to control the supply pressure to the desired value. The intelligent pneumatic pressure regulator (IPPR) is designed as the demands of pressure control precision increase. Its prominent advantage is the ability to achieve accurate output pressure, remote control and centralized management. In this paper, the IPPR consists of a mechanical valve body, a stepping motor, a microcontroller, a pressure sensor. Herein, its pneumatic characteristics were analyzed, and the pressure control algorithm was presented. The superior performance of IPPR was shown in AMEsim simulation, especially in terms of avoiding affects from upstream pressure and downstream flow disturbances.

Modeling and Control of Proportional Valve with Synchronous Motor

2015 ◽  
Vol 220-221 ◽  
pp. 457-462 ◽  
Author(s):  
Andrzej Milecki ◽  
Dominik Rybarczyk
Keyword(s):  
Permanent Magnets ◽  
Dead Zone ◽  
Flow Characteristics ◽  
Synchronous Motor ◽  
Hydraulic Actuator ◽  
Servo Drive ◽  
Proportional Valve ◽  
Modeling And Control ◽  
Basic Characteristics ◽  
And Control

The paper describes the research results of modeling and control of proportional valve with synchronous motor type PMSM (Permanent Magnets Synchronous Motor). In the paper, a simulation model of the proposed valve was developed and described. The model included the square root flow characteristics, nonlinearity of the hydraulic actuator, valve dead zone and saturation of the flow. The study included the investigations of the basic characteristics, such as valve flow characteristic and step responses. In order to determine the basic parameters of the valve, the test stand was built, on which the new valve and the servo drive with this valve were tested. A servo drive control system was based on PLC with touch panel and inverter module. In the paper, the chosen investigations results of the valve and the servo drive system are presented and shortly discussed.

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