Abstract
High-speed on-off valve is in the 1980s has developed a fast response, simplestructure, strong anti-pollution, and electronic circuits with good characteristics such as the conversion of electro-hydraulic control components. As long as the control pulse frequency or pulse width, will be able to control the flow of continuous, high-speed switching valve is a very promising figure valve, the development of this component will be the number of industrial modernization choice. To further enhance rapid response to the frequency of on-off valve, reducing their response time, improve their performance. First, from the high-speed switching valve theory, research and analysis of its structure, working principle and distribution of the magnetic field, and in accordance with its electromagnetic properties and mechanical properties, the establishment of a mathematical model, and then linear mathematical model, into a transfer function block diagram; Togerth matlab with simulink simulation tools, first mathematical model into a simulation model into the parameters, digital simulation, generating dynamic and static simulation curve.
Key words: High-speed switching valve, PWM signal, mathematical odel, digital simulation;
