Performance analysis of an automatic idle speed control system with a hydraulic accumulator for pure electric construction machinery

Lin, Tianliang; Wang, Lang; Huang, Weiping; Fu, Shengjie; Chen, Qihuai

doi:10.1016/j.autcon.2017.09.001

Cited by 33 publications

(15 citation statements)

References 13 publications

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“…8. In general, the supply flow for traditional hydraulic speed control has two basic forms: where the valve control or a fixed displacement pump is driven by a variable speed motor whose engine speed determines the flow [36]- [39].…”

Section: Slp 0 Prototypementioning

confidence: 99%

Designing a New Artificial Lift Method Using Computational Simulation and Evolutionary Optimization

Moreira¹,

Lepikson

Schnitman

et al. 2019

IEEE Access

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Oil exploitation has moved into deeper reservoirs with the advances in drilling techniques and thus the development of new pumping techniques has become a challenge to improve production. The positive displacement pumping system proposed in this paper is presented as an artificial lift technique.Here we present a new pumping device, its estimated operational curves through numerical simulations and a prototype of the device, denominated a Double Acting Submersible Linear Pump (SLP), which is a hydraulic system adapted for inside well operations. Design parameters used in the tests were optimized using the Particle Swarm Optimization (PSO) algorithm to maximize oil production while optimizing the parameters (characterstics) of the pump, such as maximum pump diameters and submersible electric motor power, pressure and volumetric displacement of the hydraulic pump. Also presented are the operating curves estimated from the numerical simulation of the power and pump modules, as well as the SLP 0 and SLP 1 experimental test curves in a controlled environment using the optimized parameters obtained using PSO The data obtained were compared to the computational simulations performed with the Automation Studio TM software. The SLP 0 and SLP 1 optimal design tests showed the importance to delimit the range of operation within which the SLP must operate, since the pipes and hydraulic components must be suitable for the flow of hydraulic oil and the production oil. The findings presented here play an important role in the production process of a fully operational SLP prototype.INDEX TERMS Artificial lift technique, petroleum industry, particle swarm optimization algorithm, computational modeling and simulation.

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Section: Slp 0 Prototypementioning

confidence: 99%

Designing a New Artificial Lift Method Using Computational Simulation and Evolutionary Optimization

Moreira¹,

Lepikson

Schnitman

et al. 2019

IEEE Access

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“…However, in a PFS, when the actuator needs to work, it takes the pump a long time to set up pressure to overcome the load [13]. Lin et al studied the automatic idle control characteristics of a hydraulic excavator based on a PFS driven by pure electricity, but they did not discuss the characteristics of the PFS [14]. Bender et al introduced a predictive operator modeling of a virtual prototype of a hydraulic excavator using a PFS and analyzed the influence of different driver factors on the working cycle time and capacity consumption, but they did not investigate the performance of the PFS [15].…”

Section: Introductionmentioning

confidence: 99%

A Positive Flow Control System for Electric Excavators Based on Variable Speed Control

Zhong-shen

Lin

et al. 2020

Applied Sciences

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Energy conservation and emission reduction of construction machinery are the focus of current research. The traditional excavator, whose hydraulic pump is driven by the engine, has high fuel consumption and emissions. Furthermore, it is difficult to match the working point of the engine to that of the hydraulic pump. Current pure electric drive technology has the advantages of zero pollution and low noise, and the motor used has the advantages of fast response and a wide speed range. Based on the characteristics of the pure electric drive technology, a positive flow system based on variable speed constant displacement instead of a variable displacement pump for pure electric construction machinery is put forward to realize the flow-matching of the whole machine. The basic structure and working principle were introduced. The control process was analyzed. The controllability and energy saving of the proposed system were tested through simulation and experimental analysis. The research results showed that the controllability of the proposed positive flow system was comparable to that of the traditional throttling speed-regulating control system. The energy-saving efficiency of the proposed positive flow system is increased by 35.2% compared to that of the tradition control system. To further exploit the strong overload capacity of electric motors of electric construction machinery and solve the insufficient power under sudden load, research on constant power control will be carried out in the future.

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“…One group of solutions is based on the use of a variable displacement pump and proportional control valves with sensors, transducers, and a digital controller. A two-level idle speed control system with a hydraulic accumulator for an excavator was proposed by Lin et al [1] to reduce energy consumption and improve the control performance of the actuator when the idle speed control is switched off. Experimental results showed high energy efficiency and excellent control performance of the automatic switching system between the first idle speed, the second idle speed, and the normal operating speed of a hydraulic cylinder.…”

Section: Introductionmentioning

confidence: 99%

Numerical and Experimental Study of a Novel Valve Using the Return Stream Energy to Adjust the Speed of a Hydraulic Actuator

Filo¹,

Lisowski²,

Kwiatkowski³

et al. 2019

SV-JME

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This article discusses the possibility of increasing the speed of movement of a single-sided hydraulic cylinder piston rod using a fluid stream from the return line. Directing the return stream back to the supply line instead of the fluid reservoir causes significant increase in the inflow rate to the actuator. This situation may arise when the piston rod of the cylinder is not fully loaded on part of the movement range. As part of this work, we proposed a solution in the form of a novel control valve, consisting of a throttle valve and a differential valve controlled by the pressure difference between the supply line and the return line. A geometric model was created using SolidWorks, then a simulation model was made in Matlab/Simulink. Next, simulations were carried out to prove that the use of the return fluid stream gives a possibility of a significant increase in the piston rod speed. The results of the numerical analyses were verified on a test bench where the valve prototype was tested. Speed characteristics of the piston rod against both payload force and throttle valve setting were determined. High convergence with the simulation results was obtained. It has also been confirmed that the proposed solution can be advantageous in practical applications.

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Performance analysis of an automatic idle speed control system with a hydraulic accumulator for pure electric construction machinery

Cited by 33 publications

References 13 publications

Designing a New Artificial Lift Method Using Computational Simulation and Evolutionary Optimization

Designing a New Artificial Lift Method Using Computational Simulation and Evolutionary Optimization

A Positive Flow Control System for Electric Excavators Based on Variable Speed Control

Numerical and Experimental Study of a Novel Valve Using the Return Stream Energy to Adjust the Speed of a Hydraulic Actuator

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