Scientific and Technical Journal

Russian Electromechanics


Russian Electromechanics. 2014; 5: 68-71

 

http://dx.doi.org/

 

Automatic control system research of outlet gas temperature of the air coolers units

A.M. Abakumov, S.V. Alimov, L.A. Migacheva, A.V. Migachev

A.M. Abakumov, Doctor of Technical Sciences, Professor, department «Electromechanics and Automotive Electric Equipment», Samara State Technical University. E-mail: abakumov-am@yandex.ru

S.V. Alimov, vice-chief department of transport, underground storage and use of gas, OAO «Gazprom». E-mail: S.Alimov@adm.gazprom.ru

L.A. Migacheva, Candidate of Technical Sciences, Associate professor, Director OAO «ATRI». E-mail: atri@inbox.ru

A.V. Migachev, Candidate of Economic Sciences, chief of information and Treasury Department OOO «MC Energoaudit». E-mail: atri@inbox.ru.

 

Abstract

To cool natural gas after compression at the compressor stations in the gas pipelines the air coolers units (ACU) are used. A significant increase in the ACU energy efficiency is achieved through the use of variable-frequency electric drives for cooling blowers. Gas temperature automatic control systems (ACS) at the outlet of the ACU are performed as closed ACS. Due to the variable parameters of the controlled object there is a problem of stabilization and the required control quality index. The dual structure of ACS has been proposed, the issues of the regulator synthesis based on nonstationarity of the controlled object have been considered. The results of the computer simulation of transient responses in the system and the evaluation of the influence of the controlled object’s variable parameters on control quality index are presented in this article.

 

Keywords: gas cooler, gas temperature automatic control system, variable parameters of the controlled object.

 

Full text: [in elibrary.ru]

 

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