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Analysis, Simulation, and Experiment...

Leinberger, Mark Andrew,

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Analysis, Simulation, and Experiments of Dynamics and Control of a Hydrostatic Wind Turbine /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Analysis, Simulation, and Experiments of Dynamics and Control of a Hydrostatic Wind Turbine // Mark Andrew Leinberger.
Author:	Leinberger, Mark Andrew,
Description:	1 electronic resource (97 pages)
Notes:	Source: Masters Abstracts International, Volume: 85-01.
Contained By:	Masters Abstracts International85-01.
Subject:	Mechanical engineering. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30523269
ISBN:	9798379944476

Analysis, Simulation, and Experiments of Dynamics and Control of a Hydrostatic Wind Turbine /
Leinberger, Mark Andrew,

Analysis, Simulation, and Experiments of Dynamics and Control of a Hydrostatic Wind Turbine /Mark Andrew Leinberger. - 1 electronic resource (97 pages)

Source: Masters Abstracts International, Volume: 85-01.

\uD835\uDC3E\uD835\uDF142 control, also called torque control, is a popular tool for maximizing wind turbine power in region 2. For hydrostatic wind turbines, the \uD835\uDC3E\uD835\uDF142 law relates pressure and rotor speed because pressure is proportional to torque. The Kω2 control law becomes pressure control with pc=K'ω2 . A new control law, Inverse Kω2 control, is proposed for rotor speed control with ωc=(p/K')1/2 . Both pressure- and rotor speed-regulation methods are investigated using P-, PI- and PID-control. This work analyzes the nonlinear dynamic interaction between HST wind turbines and the two Kω2 control methods.Dimensionless, linearized models of these two approaches are used to investigate dynamics and control. Analysis shows that the mechanical rotor dynamics are much slower than the hydraulic transmission dynamics and that frictional and leakage losses have a negligible effect on system dynamics. Root locus analysis shows how systems responses change with variation of PID controller gains. Both control approaches require derivative controller action to sufficiently dampen their responses; both are also fundamentally limited in their speed of response by a slow stable pole regardless of their controller loop gains.Nonlinear system simulation shows that both control approaches track the maximum power point with nearly identical transient behavior and have nearly identical power losses when using suboptimal values of the control law gain \uD835\uDC3E. Experiments using the power regenerative hydrostatic test stand at the University of Minnesota - Twin Cities show that the control approaches have different transient responses but capture comparable power within 2% under steady, turbulent and nonideal conditions.

English

ISBN: 9798379944476Subjects--Topical Terms:

649730
Mechanical engineering.
Subjects--Index Terms:

Hydrostatic transmission

Analysis, Simulation, and Experiments of Dynamics and Control of a Hydrostatic Wind Turbine /
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100 1 $a Leinberger, Mark Andrew, $e author. $3 3818531
245 1 0 $a Analysis, Simulation, and Experiments of Dynamics and Control of a Hydrostatic Wind Turbine / $c Mark Andrew Leinberger.
264 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2023
300 $a 1 electronic resource (97 pages)
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500 $a Source: Masters Abstracts International, Volume: 85-01.
500 $a Advisors: Stelson, Kim A. Committee members: Van de Ven, Jim; Strandjord, Kirsten.
502 $b M.S. $c University of Minnesota $d 2023.
520 $a \uD835\uDC3E\uD835\uDF142 control, also called torque control, is a popular tool for maximizing wind turbine power in region 2. For hydrostatic wind turbines, the \uD835\uDC3E\uD835\uDF142 law relates pressure and rotor speed because pressure is proportional to torque. The Kω2 control law becomes pressure control with pc=K'ω2 . A new control law, Inverse Kω2 control, is proposed for rotor speed control with ωc=(p/K')1/2 . Both pressure- and rotor speed-regulation methods are investigated using P-, PI- and PID-control. This work analyzes the nonlinear dynamic interaction between HST wind turbines and the two Kω2 control methods.Dimensionless, linearized models of these two approaches are used to investigate dynamics and control. Analysis shows that the mechanical rotor dynamics are much slower than the hydraulic transmission dynamics and that frictional and leakage losses have a negligible effect on system dynamics. Root locus analysis shows how systems responses change with variation of PID controller gains. Both control approaches require derivative controller action to sufficiently dampen their responses; both are also fundamentally limited in their speed of response by a slow stable pole regardless of their controller loop gains.Nonlinear system simulation shows that both control approaches track the maximum power point with nearly identical transient behavior and have nearly identical power losses when using suboptimal values of the control law gain \uD835\uDC3E. Experiments using the power regenerative hydrostatic test stand at the University of Minnesota - Twin Cities show that the control approaches have different transient responses but capture comparable power within 2% under steady, turbulent and nonideal conditions.
546 $a English
590 $a School code: 0130
650 4 $a Mechanical engineering. $3 649730
650 4 $a Applied mathematics. $3 2122814
650 4 $a Computational physics. $3 3343998
653 $a Hydrostatic transmission
653 $a Hydrostatic wind turbines
653 $a Root locus
653 $a MPPT control
653 $a PID controller
690 $a 0548
690 $a 0216
690 $a 0364
710 2 $a University of Minnesota. $b Mechanical Engineering. $e degree granting institution. $3 3765791
720 1 $a Stelson, Kim A. $e degree supervisor.
773 0 $t Masters Abstracts International $g 85-01.
790 $a 0130
791 $a M.S.
792 $a 2023
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30523269