Oil drilling rig diesel power-plant fuel efficiency improvement potentials through rule-based generator scheduling and utilization of battery energy storage system

Pavković, Danijel and Sedić, Almir and Guzović, Zvonimir (2016) Oil drilling rig diesel power-plant fuel efficiency improvement potentials through rule-based generator scheduling and utilization of battery energy storage system. = Oil drilling rig diesel power-plant fuel efficiency improvement potentials through rule-based generator scheduling and utilization of battery energy storage system. Energy conversion and management, 121. pp. 194-211. ISSN 0196-8904. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q1 (2016). Točan broj autora: 3.

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Abstract

This paper presents the development of a rule-based power flow control strategy suitable for isolated diesel power-plants equipped with a battery energy storage system for peak load shaving. The proposed control strategy includes the generator scheduling strategy and peak load leveling scheme based on current microgrid active and reactive power requirements. In order to investigate the potentials for fuel expenditure reduction, 30 days-worth of microgrid power flow data has been collected on an isolated land-based oil drilling rig powered by a diesel generator power-plant, characterized by highly-variable active and reactive load profiles due to intermittent engagements and disengagements of high-power electric machinery such as top-drive, draw-works and mud-pump motors. The analysis has shown that by avoiding the low-power operation of individual generators and by providing the peak power requirements (peak shaving) from a dedicated energy storage system, the power-plant fuel consumption may be notably reduced. An averaged power flow simulation model has been built, comprising the proposed rule-based power flow control strategy and the averaged model of a suitably sized battery energy storage system equipped with grid-tied power converter and state-of-charge control system. The effectiveness of the proposed rule-based strategy has been evaluated by means of computer simulation analysis based on drilling rig microgrid active and reactive power data recorded during the 30 day period. The analysis has indicated that fuel consumption of thus modified drilling rig diesel generator power-plant can be reduced by about 12% compared to current practice in the field relying on human operator-based decision making, which would also result in proportional reduction of carbon-dioxide emissions. Finally, the analysis has also shown that the return-of-investment period for the considered battery energy storage system might be between one and two years depending on the power-plant utilization (duty) ratio.

Item Type:	Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian):	oil drilling rig microgrid; diesel power-plant; fuel efficiency; energy management; battery energy storage; return-of-investment period
Subjects:	TECHNICAL SCIENCE > Mechanical Engineering
Divisions:	500 Department of Energy, Power Engineering and Environment > 530 Chair of Turbomachinery 900 Department of Robotics and Production System Automation > 910 Chair of Engineering Automation
Indexed in Web of Science:	Yes
Indexed in Current Contents:	Yes
Quartiles:	Q1 (2016)
Date Deposited:	19 May 2016 11:35
Last Modified:	14 Jan 2019 14:52
URI:	http://repozitorij.fsb.hr/id/eprint/5817

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