Application of variable-load control in cylinder pressure control of free-piston engine generator

Long Li; You Tong Zhang; Zheng Xing Zuo

doi:10.13229/j.cnki.jdxbgxb20161283

Application of variable-load control in cylinder pressure control of free-piston engine generator

Long Li, You Tong Zhang, Zheng Xing Zuo

School of Mechanical Engineering

Beijing Institute of Technology

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

Abstract

In order to control the cylinder pressure of free-piston engine generator, a variable-load control method is proposed. The control of the total impedance of the system circuit is achieved by the construction of a variable equivalent load, so that the loop current is changed, and then the electromagnetic resistance acting on the mover changes. In order to make the electromagnetic force change in accordance with the expected law, a closed-loop control strategy is designed. Simulation results show that, using this control strategy, the proposed variable-load control method can stabilize the piston motion, thus achieving a stable cylinder pressure.

Original language	English
Pages (from-to)	473-479
Number of pages	7
Journal	Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition)
Volume	48
Issue number	2
DOIs	https://doi.org/10.13229/j.cnki.jdxbgxb20161283
Publication status	Published - 1 Mar 2018

Keywords

Cylinder pressure control
Equivalent load
Free-piston engine generator
Power machinery and engineering
Variable-load control

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10.13229/j.cnki.jdxbgxb20161283

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title = "Application of variable-load control in cylinder pressure control of free-piston engine generator",

abstract = "In order to control the cylinder pressure of free-piston engine generator, a variable-load control method is proposed. The control of the total impedance of the system circuit is achieved by the construction of a variable equivalent load, so that the loop current is changed, and then the electromagnetic resistance acting on the mover changes. In order to make the electromagnetic force change in accordance with the expected law, a closed-loop control strategy is designed. Simulation results show that, using this control strategy, the proposed variable-load control method can stabilize the piston motion, thus achieving a stable cylinder pressure.",

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AU - Li, Long

AU - Zhang, You Tong

AU - Zuo, Zheng Xing

PY - 2018/3/1

Y1 - 2018/3/1

N2 - In order to control the cylinder pressure of free-piston engine generator, a variable-load control method is proposed. The control of the total impedance of the system circuit is achieved by the construction of a variable equivalent load, so that the loop current is changed, and then the electromagnetic resistance acting on the mover changes. In order to make the electromagnetic force change in accordance with the expected law, a closed-loop control strategy is designed. Simulation results show that, using this control strategy, the proposed variable-load control method can stabilize the piston motion, thus achieving a stable cylinder pressure.

AB - In order to control the cylinder pressure of free-piston engine generator, a variable-load control method is proposed. The control of the total impedance of the system circuit is achieved by the construction of a variable equivalent load, so that the loop current is changed, and then the electromagnetic resistance acting on the mover changes. In order to make the electromagnetic force change in accordance with the expected law, a closed-loop control strategy is designed. Simulation results show that, using this control strategy, the proposed variable-load control method can stabilize the piston motion, thus achieving a stable cylinder pressure.

KW - Cylinder pressure control

KW - Equivalent load

KW - Free-piston engine generator

KW - Power machinery and engineering

KW - Variable-load control

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ER -

Application of variable-load control in cylinder pressure control of free-piston engine generator

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Keywords

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