Dynamics and frequency and voltage control of downhole oil pumping system

Weicheng Li; Vahid Vaziri; Sumeet S Aphale; Marian Wiercigroch

doi:10.1016/j.ymssp.2019.106562

Dynamics and frequency and voltage control of downhole oil pumping system

Weicheng Li, Vahid Vaziri, Sumeet S Aphale, Marian Wiercigroch^* (Corresponding Author)

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

2 Downloads (Pure)

Abstract

The motor load torque of a typical pumping system employed in onshore oil-fields has a fluctuating ‘double-hump’ profile, which requires a motor with a substantially higher rating than the average load torque. In this paper, we have developed a dynamical model of this electro-mechanical system. To reduce the load fluctuation and consequently lower the required motor rating and energy consumption, a real-time voltage and frequency optimization scheme (RTVFOS) is proposed. Both real-time frequency optimization scheme (RTFOS) applying constant voltage and frequency ratio principle as well as real-time voltage regulation scheme (RTVRS) with constant frequency are also simulated. It is shown that the RTFOS is capable of substantively decreasing the motor rating while the RTVRS is capable of delivering a significant energy savings. It is demonstrated that the RTVFOS combines the benefits of both control methods and also lowers the range of variation in voltage, thereby improving the motor’s operating life.

Original language	English
Article number	106562
Number of pages	24
Journal	Mechanical Systems and Signal Processing
Volume	139
Early online date	16 Jan 2020
DOIs	https://doi.org/10.1016/j.ymssp.2019.106562
Publication status	Published - 1 May 2020

Bibliographical note

Funding Information:
The research in this paper is supported and funded by programs with China Scholarship Council (Grant 201708130108 ), Natural Science Foundation of Hebei Province (Grant E2017203101 ), and National Natural Science Foundation of China (Grant 51974276 ).

Keywords

dynamics
frequency and voltage control
energy saving
pumping system
electro-mechanical model
Frequency and voltage control
Pumping system
Dynamics
Electro-mechanical model
Energy saving
ENERGY
LOAD
IMPLEMENTATION
STATE
MODEL
SIMULATION
LOSS MINIMIZATION
INDUCTION-MOTOR
TECHNOLOGY
UNITS

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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Accepted author manuscript, 2.48 MBLicence: CC BY-NC-ND

Cite this

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title = "Dynamics and frequency and voltage control of downhole oil pumping system",

abstract = "The motor load torque of a typical pumping system employed in onshore oil-fields has a fluctuating {\textquoteleft}double-hump{\textquoteright} profile, which requires a motor with a substantially higher rating than the average load torque. In this paper, we have developed a dynamical model of this electro-mechanical system. To reduce the load fluctuation and consequently lower the required motor rating and energy consumption, a real-time voltage and frequency optimization scheme (RTVFOS) is proposed. Both real-time frequency optimization scheme (RTFOS) applying constant voltage and frequency ratio principle as well as real-time voltage regulation scheme (RTVRS) with constant frequency are also simulated. It is shown that the RTFOS is capable of substantively decreasing the motor rating while the RTVRS is capable of delivering a significant energy savings. It is demonstrated that the RTVFOS combines the benefits of both control methods and also lowers the range of variation in voltage, thereby improving the motor{\textquoteright}s operating life.",

keywords = "dynamics, frequency and voltage control, energy saving, pumping system, electro-mechanical model, Frequency and voltage control, Pumping system, Dynamics, Electro-mechanical model, Energy saving, ENERGY, LOAD, IMPLEMENTATION, STATE, MODEL, SIMULATION, LOSS MINIMIZATION, INDUCTION-MOTOR, TECHNOLOGY, UNITS",

author = "Weicheng Li and Vahid Vaziri and Aphale, {Sumeet S} and Marian Wiercigroch",

note = "Funding Information: The research in this paper is supported and funded by programs with China Scholarship Council (Grant 201708130108 ), Natural Science Foundation of Hebei Province (Grant E2017203101 ), and National Natural Science Foundation of China (Grant 51974276 ). ",

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AU - Aphale, Sumeet S

AU - Wiercigroch, Marian

N1 - Funding Information: The research in this paper is supported and funded by programs with China Scholarship Council (Grant 201708130108 ), Natural Science Foundation of Hebei Province (Grant E2017203101 ), and National Natural Science Foundation of China (Grant 51974276 ).

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N2 - The motor load torque of a typical pumping system employed in onshore oil-fields has a fluctuating ‘double-hump’ profile, which requires a motor with a substantially higher rating than the average load torque. In this paper, we have developed a dynamical model of this electro-mechanical system. To reduce the load fluctuation and consequently lower the required motor rating and energy consumption, a real-time voltage and frequency optimization scheme (RTVFOS) is proposed. Both real-time frequency optimization scheme (RTFOS) applying constant voltage and frequency ratio principle as well as real-time voltage regulation scheme (RTVRS) with constant frequency are also simulated. It is shown that the RTFOS is capable of substantively decreasing the motor rating while the RTVRS is capable of delivering a significant energy savings. It is demonstrated that the RTVFOS combines the benefits of both control methods and also lowers the range of variation in voltage, thereby improving the motor’s operating life.

AB - The motor load torque of a typical pumping system employed in onshore oil-fields has a fluctuating ‘double-hump’ profile, which requires a motor with a substantially higher rating than the average load torque. In this paper, we have developed a dynamical model of this electro-mechanical system. To reduce the load fluctuation and consequently lower the required motor rating and energy consumption, a real-time voltage and frequency optimization scheme (RTVFOS) is proposed. Both real-time frequency optimization scheme (RTFOS) applying constant voltage and frequency ratio principle as well as real-time voltage regulation scheme (RTVRS) with constant frequency are also simulated. It is shown that the RTFOS is capable of substantively decreasing the motor rating while the RTVRS is capable of delivering a significant energy savings. It is demonstrated that the RTVFOS combines the benefits of both control methods and also lowers the range of variation in voltage, thereby improving the motor’s operating life.

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KW - Electro-mechanical model

KW - Energy saving

KW - ENERGY

KW - LOAD

KW - IMPLEMENTATION

KW - STATE

KW - MODEL

KW - SIMULATION

KW - LOSS MINIMIZATION

KW - INDUCTION-MOTOR

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Dynamics and frequency and voltage control of downhole oil pumping system

Abstract

Bibliographical note

Keywords

UN SDGs

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