Tezislər / Theses

THE 3
rd
 INTERNATIONAL SCIENTIFIC CONFERENCES OF STUDENTS AND YOUNG RESEARCHERS 
dedicated to the 99
th
anniversary of the National Leader of Azerbaijan Heydar Aliyev
268
As a result, throughout the research, required systems, control strategy 
and techniques were accomplished. The proper communication protocol was 
selected, control logic and algorithms were established. The project output 
documents, such as I/O list, instrument index, loop/interconnection 
diagrams, cause & effect diagram have been developed. In addition, for the 
coming year's curriculum, laboratory work instructions have been created.
References
[1] 
[2] 
[3] 
Flashing and Cavitation, 2015, Emerson, Fisher
https://www.emerson.com/documents/automation/article-flashing-cavitation-en-38204.pdf. 
Gregory K. McMillan & Douglas M. Considine, "Process/Industrial Instruments and 
Controls Handbook". 
Hutchison, J. W., “ISA Handbook of Control Valves,” second edition, Instrument Society of 
America. 
DESIGN OF LEVEL CONTROL LOOP BY VARIABLE 
FREQUENCY DRIVE AT BHOS EMERSON TEST RIG 
Khalida Aliyeva 
Baku Higher Oil School 
Baku, Azerbaijan 
e-mail: [e-mail] 
Supervisor: Ph.D, Associate Professor Erkin Ibragimov 
Keywords
: Continuous Level Control, Control Loop Design, Final Control Element, 
Variable Frequency Drive 
Many industrial processes require the accurate measurement and tight 
automatic control of fluid or solid (powder, granule, etc.) height within a vessel, 
because it is through the proper control of levels that the desired production 
rates are achieved. Advantages commonly attributed to automatic level control 
include improved safety, enhanced environmental and equipment protection, 
smooth plant operation and higher production rates, higher product quality, 
profit optimization, easier monitoring, and diagnosis, to name just a few. 
Level control encompasses a wide variety of technologies that sense 
and provide control feedback on fluid levels in tanks, vats, silos etc. The 
decision on which to select and implement depends on the actual required 
function of the process whether it is maintaining level at its desired value, 
preventing chemicals from overflowing from storage tanks, or preventing 
storage facilities from emptying completely. In this project, the primary 
objective was to design a level control loop which continuously monitors the 
level in a tank and maintains it at the predefined point. To achieve this 
objective, many technologies including, but not limited to, non-contact level 

---