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Research Papers

Sequential Control of Multichannel On–Off Valves for Linear Flow Characteristics Via Averaging Pulse Width Modulation Without Flow Meter: An Application for Pneumatic Valves

[+] Author and Article Information
Kanchit Pawananont

School of Manufacturing Systems and
Mechanical Engineering,
Sirindhorn International Institute of Technology,
Thammasat University,
P.O. Box 22,
Pathum Thani 12121, Thailand
e-mail: analog_dir99@hotmail.com

Thananchai Leephakpreeda

School of Manufacturing Systems and
Mechanical Engineering,
Sirindhorn International Institute of Technology,
Thammasat University,
P.O. Box 22,
Pathum Thani 12121, Thailand
e-mail: thanan@siit.tu.ac.th

1Corresponding author.

Contributed by the Dynamic Systems Division of ASME for publication in the JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT,AND CONTROL. Manuscript received January 24, 2018; final manuscript received July 16, 2018; published online September 10, 2018. Assoc. Editor: Heikki Handroos.

J. Dyn. Sys., Meas., Control 141(1), 011007 (Sep 10, 2018) (11 pages) Paper No: DS-18-1042; doi: 10.1115/1.4040969 History: Received January 24, 2018; Revised July 16, 2018

Control of on–off valves for linear flow characteristics is a challenging design problem due to nonlinearity of valve mechanism and fluidic properties under various operating conditions. In this study, averaging pulse width modulation (PWM) is proposed as a control valve signal by implementing PWM with predetermined duty period so that overflow at the open position and underflow at the closed position are divided proportionately around desired mean flow rates during entire cycle periods. Multichannels in a parallel pattern are implemented to yield linear flow characteristics with higher resolution than a single channel. With pressure and temperature measurements, the volumetric flow rate is determined by an empirical model of flow characteristics across flow control valves at given operating conditions. The experimental results on achieving the desired volumetric flow rate of air under actual flow conditions without a flow meter are presented for viability of the proposed methodology in practical uses.

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References

Grebenkin, I. , Muradov, K. , and Davies, D. , 2015, “A Stochastic Approach for Evaluating Where on/Off Zonal Production Control Is Efficient,” J. Pet. Sci. Eng., 132, pp. 28–38. [CrossRef]
Quyen Minh, L. , Mihn Tu, P. , Mahdi, T. , Richard, M. , Jean-Pierre, S. , and Tanneguy, R. , 2013, “Bilateral Control of Nonlinear Pneumatic Teleoperation System With Solenoid Valves,” IEEE Trans. Control Syst. Technol., 21(4), pp. 1463–1470.
Rannow, M. B. , and Li, P. Y. , 2012, “Soft Switching Approach to Reducing Transition Losses in an on/Off Hydraulic Valve,” ASME J. Dyn. Syst. Meas. Control, 134(6), p. 064501 . [CrossRef]
Xue'en, Y. , Alexander, H. , Stuart A, J. , Jeffrey H, L. , Martin A, S. , and Stephen D, U. , 2004, “An Electrostatic, on/Off Microvalve Designed for Gas Fuel Delivery for the MIT Microengine,” J. Microlectromechanical Syst., 13(4), pp. 660–668 . [CrossRef]
Pan, M. , Johnston, N. , Robertson, J. , Andrew, P. , Andrew, H. , and Huayong, Y. , 2015, “Experimental Investigation of a Switched Inertance Hydraulic System With a High-Speed Rotary Valve,” ASME J. Dyn. Syst. Meas. Control, 137(12), p. 121003 . [CrossRef]
Dino, C. , Lawence, K. , and Marc, M. , 2015, “A Novel Magnetic Active Valve for Lab-on-CD Technology,” J. Microelectromech. Systems, 24(5), pp. 1322–1330 . [CrossRef]
Alemayehu, P. W. , Pable, L.-S. , Bejarano-Nosas, D. , Teixeira-Dias, B. , and Ioans, K. , 2014, “Electrochemically Actuated Passive Stop-Go Microvalves for Flow Control in Microfluidic Systems,” Microelectron. Eng., 111, pp. 416–420 .
Brett, M.-E. , Shao, S. , Stoia, J. L. , and Eddington, D. T. , 2011, “Controlling Flow in Microfluidic Channels With a Manually Actuated Pin Valve,” Biomed. Microdev., 13(4), pp. 633–639. [CrossRef]
Zhu, K. , Gu, L. , Chen, Y. , and Li, W. , 2012, “High Speed on/Off Valve Control Hydraulic Propeller,” Chin. J. Mech. Eng., 25(3), pp. 463–473. [CrossRef]
Van Varseveld, R. B. , and Bone, G. M. , 1997, “Accurate Position Control of a Pneumatic Actuator Using on/Off Solenoid Valves,” IEEE/ASME Trans. Mechatronics, 2(3), pp. 195–201. [CrossRef]
Barth, E. J. , Zhang, J. , and Goldfarb, M. , 2003, “Control Design for Relative Stability in a PWM-Controlled Pneumatic System,” ASME J. Dyn. Syst. Meas. Control, 125(3), pp. 504–508. [CrossRef]
Nguyen, T. , Leavitt, J. , Jabbari, F. , and Bobrow, J. E. , 2007, “Accurate Sliding-Mode Control of Pneumatic Systems Using Low-Cost Solenoid Valves,” IEEE/ASME Trans. Mechatronics, 12(2), pp. 216–219. [CrossRef]
Hejrati, B. , and Najafi, F. , 2013, “Accurate Pressure Control of a Pneumatic Actuator With a Novel Pulse Width Modulation-Sliding Mode Controller Using a Fast Switching on/Off Valve,” Proc. Inst. Mech. Eng.: Part I, 227(2), pp. 230–242 .
Leephakpreeda, T. , 2003, “Flow-Sensorless Control Valve: Neural Computing Approach,” Flow Meas. Instrumentation, 14(6), pp. 261–266. [CrossRef]
Mercorelli, P. , 2014, “An Adaptive and Optimized Switching Observer for Sensorless Control of an Electromagnetic Valve Actuator in Camless Internal Combustion Engines,” Asian J. Control, 16(4), pp. 959–973. [CrossRef]
Zhao, X. , Li, L. , Song, J. , Li, C. , and Xian, G. , “Linear Control of Switching Valve in Vehicle Hydraulic Control Unit Based on Sensorless Solenoid Position Estimation,” IEEE Trans. Ind. Electron., 63(7), pp. 4073–4085. [CrossRef]
Mercorelli, P. , and Werner, N. , 2016, “Integrating a Piezoelectric Actuator With Mechanical and Hydraulic Devices to Control Camless Engines,” Mech. Syst. Signal Process., 78, pp. 55–70. [CrossRef]
Leephakpreeda, T. , 2011, “Fuzzy Logic Based PWM Control and Neural Controlled-Variable Estimation of Pneumatic Artificial Muscle Actuators,” Expert Syst. Appl., 38(6), pp. 7837–7850. [CrossRef]

Figures

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Fig. 1

Architecture of flow control: (a) conventional type and (b) proposed type

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Fig. 2

Schematic diagram of experimental rig

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Fig. 3

Implementation of PWM: (a) conventional type and (b) proposed type

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Fig. 4

Interpretation of averaging PWM

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Fig. 5

Comparisons of averaging PWM compared with conventional PWM: (a) open-loop responses, (b) PWM inputs, (c) tracking differences, and (d) mean tracking differences

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Fig. 6

Module of multichannel flow control valves

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Fig. 7

Determination of number of open intervals to multichannel flow control valves

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Fig. 8

Experimental setup of flow control valves

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Fig. 9

Experimental observation of closing/opening valve from downstream pressure

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Fig. 10

Linear regression analysis of empirical model for three channels

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Fig. 11

Status of three solenoid valves for different values of ∑k=13hk

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Fig. 12

Performances of flow control of three channels under operating conditions

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Fig. 13

Linear regression analysis of empirical model for a single channel

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Fig. 14

Performances of flow control of a single channel under operating conditions

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Fig. 15

Sequential control of three channel flow control valves according to demand: (a) volumetric flow rate, (b) number of open intervals, and (c) pressure

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Fig. 16

Comparison on performances of proposed valves and single on–off valve with flow meter

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Fig. 17

Tradeoff between cost and accuracy for selecting number of valves

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