Pipeline Control System Applications Targeting Business Objectives

Author(s):  
John E. Feniak ◽  
Dan A. King ◽  
Michal Mensik

Today’s increasingly competitive markets require new levels of reliability, flexibility and cost performance from gas transmission pipelines. One method that pipeline companies can use to address these business objectives is to target station and turbomachinery control system design specification, retrofits and integration. State of the art control tools and technologies have placed turbomachinery control engineering within the grasp of the end users. NOVA Gas Transmission Ltd. (NGTL) has taken advantage of this to specify, design, and implement integrated control systems that best address their business needs. This paper explores the end user perspective on applying control system technology to both new and existing compressor stations. The specification of new units and control retrofits are described. The resulting increase in system reliability and flexibility, and reduced maintenance costs is also presented.

Energies ◽  
2019 ◽  
Vol 12 (11) ◽  
pp. 2053 ◽  
Author(s):  
Tullio de Rubeis ◽  
Mirco Muttillo ◽  
Iole Nardi ◽  
Leonardo Pantoli ◽  
Vincenzo Stornelli ◽  
...  

In this paper, a novel integrated measuring and control system for hot box experiments is presented. The system, based on a general-purpose microcontroller and on a wireless sensors network, is able to fully control the thermal phenomena inside the chambers, as well as the heat flux that involves the specimen wall. Thanks to the continuous measurements of air and surfaces temperatures and energy input into the hot chamber, the thermal behavior of each hot box component is analyzed. A specific algorithm allows the post-process of the measured data for evaluating the specimen wall thermal quantities and for creating 2D and 3D thermal models of each component. The system reliability is tested on a real case represented by a double insulating X-lam wall. The results of the 72 h experiment show the system’s capability to maintain stable temperature set points inside the chambers and to log the temperatures measured by the 135 probes, allowing to know both the U-value of the sample (equal to 0.216 ± 0.01 W/m2K) and the thermal models of all the hot box components. The U-value obtained via hot box method has been compared with the values gathered through theoretical calculation and heat flow meter measurements, showing differences of less than 20%. Finally, thanks to the data postprocessing, the 2D and 3D thermal models of the specimen wall and of the chambers have been recreated.


2013 ◽  
Vol 740 ◽  
pp. 345-349
Author(s):  
Hawsawi Abbas ◽  
Norikane Kanai

The control engineering technology is a huge field of study. Above all, the instrumentation and control, likewise the plant automation has been classified as a special field of this technology. In this thesis we are introducing a practical learning material system that deals with instrumentation and plant control theory using LEGO Mindstorms and LEGO Bricks. There are different parts in the plant such as field instruments, controllers and analyzers, which are linked together to maintain a stable level of production. We are assuming that colleges and new employer will be able to use the developed system.


1966 ◽  
Vol EM-13 (1) ◽  
pp. 2-16 ◽  
Author(s):  
W. Hochwald ◽  
B. U. Miller ◽  
W. D. Ashcraft

2012 ◽  
Vol 253-255 ◽  
pp. 2080-2085
Author(s):  
Wei Guan ◽  
Zuo Jing Su ◽  
Guo Qing Zhang

In this paper, a mathematical model for ship rudder and fin integrated control system is present. The closed gain shaping algorithm (CGSA) strategy is applied to design an integrated rudder and fin stabilizer to overcome the arbitrary selection of weighting function in H∞ mixed sensitivity robust controller design procedures. The CGSA methods give a relatively more concise and reliable design method for the ship rudder and fin integrated control system. The simulation results show that the ship CGSA rudder/fin integrated controller can satisfactorily achieve roll motion reduction and yaw stabilization simultaneously as well as guarantee the levels of robust stability and control performance in the different sea conditions.


2021 ◽  
Vol 2131 (3) ◽  
pp. 032013
Author(s):  
D Avsykevich ◽  
Yu Tupitsin ◽  
E Shishkin

Abstract The approach to formalization of complex organizational and technical systems based on the toposes theory is substantiated. The article presents a review of the literature on the formalization of knowledge. An integrated control system for technical complexes is considered. The description of blocks of intelligent information and control systems based on the toposes theory is developed. An algorithm for formalizing intelligent information and control systems and an example of constructing toposes and functors for the general case are presented. The conclusion is made about the possibility of applying the proposed approach to the formalization of the intelligent information and control systems in the process of formation of their appearance.


2011 ◽  
Vol 460-461 ◽  
pp. 625-630
Author(s):  
Gong Fa Li ◽  
Jian Yi Kong ◽  
Guo Zhang Jiang ◽  
Liang Xi Xie

In order to improve the level of control and management of coke oven, the research on control and management integrated system is carried out. In modern advanced control system of coke oven, the control scheme of feedback combined with feed-forward, and control merged with management is widely used. The integrated control and management system of coke oven is introduced systematically, including the system model, production planning and management, heating control system, the model and method of evaluating temperature, intelligent combustion control and the pressure control gas collector of coke oven. It is pointed out that the integration of control and management is the developing orientation of coke oven control system.


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