Gas pressure regulator control algorithms

Abstract

Due to increase in gas transportation scopes, the requirements for gas pressure regulators, such as accuracy, speed, transition time, etc., are also increasing. This article suggests ways to solve the problem of gas pressure regulation accuracy increase by using new discrete pressure regulators. In this connection, various control algorithms for discrete gas pressure regulators, transients occurring during flow throttling are considered. The analysis of the existing analog and digital controllers showed that there’s a need to create a controller that combines the advantages of a discrete and analog controller both. The article suggests ways to improve gas pressure control systems in natural gas transportation facilities by developing a mathematical model of a discrete pressure regulator for the main gas pipeline, working according to the pressure value with a predetermined transition from one mode to another.