Research on control method of linear-generator system used for free-piston energy converter in range extenders

Yunqi Liu; Zhengxing Zuo; Huihua Feng; Yao Wang

doi:10.1109/WCMEIM52463.2020.00116

Research on control method of linear-generator system used for free-piston energy converter in range extenders

Yunqi Liu^*
, Zhengxing Zuo
, Huihua Feng
, Yao Wang

^*Corresponding author for this work

Beijing Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Free-Piston Energy Converter (FPEC) eliminates the crank connecting rod mechanism to realize variable compression ratio. This characteristic gives FPEC multi-fuel adaptability to achieve clean fuel power generation and higher efficiency. However, the lack of crank connecting rod mechanism makes FPEC susceptible to interference, and it is difficult to achieve stable operation. This paper focuses on the control method of Linear-Generator System (LGS) and the design of LGS controller. The LGS controller is composed of force controller and current controller. In Matlab / Simulink, we established the mathematical models of FPEC, where the LGS controller successfully realized the stable operation of FPEC with the target compression ratio, under the conditions of combustion fluctuations and external interference. And the tolerance of actual compression ratio is within 1%. Therefore, the control method is effective, and we can assume that FPEC as a range extender for hybrid vehicles has promising future adoption.

Original language	English
Title of host publication	Proceedings - 2020 3rd World Conference on Mechanical Engineering and Intelligent Manufacturing, WCMEIM 2020
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	527-531
Number of pages	5
ISBN (Electronic)	9781665441094
DOIs	https://doi.org/10.1109/WCMEIM52463.2020.00116
Publication status	Published - Dec 2020
Event	3rd World Conference on Mechanical Engineering and Intelligent Manufacturing, WCMEIM 2020 - Virtual, Shanghai, China Duration: 4 Dec 2020 → 6 Dec 2020

Publication series

Name	Proceedings - 2020 3rd World Conference on Mechanical Engineering and Intelligent Manufacturing, WCMEIM 2020

Conference

Conference	3rd World Conference on Mechanical Engineering and Intelligent Manufacturing, WCMEIM 2020
Country/Territory	China
City	Virtual, Shanghai
Period	4/12/20 → 6/12/20

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Free-piston energy converter
Linear-generator system
Range Extenders

Access to Document

10.1109/WCMEIM52463.2020.00116

Cite this

Liu, Y., Zuo, Z., Feng, H., & Wang, Y. (2020). Research on control method of linear-generator system used for free-piston energy converter in range extenders. In Proceedings - 2020 3rd World Conference on Mechanical Engineering and Intelligent Manufacturing, WCMEIM 2020 (pp. 527-531). Article 9409336 (Proceedings - 2020 3rd World Conference on Mechanical Engineering and Intelligent Manufacturing, WCMEIM 2020). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/WCMEIM52463.2020.00116

Liu, Yunqi ; Zuo, Zhengxing ; Feng, Huihua et al. / Research on control method of linear-generator system used for free-piston energy converter in range extenders. Proceedings - 2020 3rd World Conference on Mechanical Engineering and Intelligent Manufacturing, WCMEIM 2020. Institute of Electrical and Electronics Engineers Inc., 2020. pp. 527-531 (Proceedings - 2020 3rd World Conference on Mechanical Engineering and Intelligent Manufacturing, WCMEIM 2020).

@inproceedings{ac169466ee4f4cc3ad346b6c7712bb26,

title = "Research on control method of linear-generator system used for free-piston energy converter in range extenders",

abstract = "Free-Piston Energy Converter (FPEC) eliminates the crank connecting rod mechanism to realize variable compression ratio. This characteristic gives FPEC multi-fuel adaptability to achieve clean fuel power generation and higher efficiency. However, the lack of crank connecting rod mechanism makes FPEC susceptible to interference, and it is difficult to achieve stable operation. This paper focuses on the control method of Linear-Generator System (LGS) and the design of LGS controller. The LGS controller is composed of force controller and current controller. In Matlab / Simulink, we established the mathematical models of FPEC, where the LGS controller successfully realized the stable operation of FPEC with the target compression ratio, under the conditions of combustion fluctuations and external interference. And the tolerance of actual compression ratio is within 1\%. Therefore, the control method is effective, and we can assume that FPEC as a range extender for hybrid vehicles has promising future adoption.",

keywords = "Free-piston energy converter, Linear-generator system, Range Extenders",

author = "Yunqi Liu and Zhengxing Zuo and Huihua Feng and Yao Wang",

note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 3rd World Conference on Mechanical Engineering and Intelligent Manufacturing, WCMEIM 2020 ; Conference date: 04-12-2020 Through 06-12-2020",

year = "2020",

month = dec,

doi = "10.1109/WCMEIM52463.2020.00116",

language = "English",

series = "Proceedings - 2020 3rd World Conference on Mechanical Engineering and Intelligent Manufacturing, WCMEIM 2020",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "527--531",

booktitle = "Proceedings - 2020 3rd World Conference on Mechanical Engineering and Intelligent Manufacturing, WCMEIM 2020",

address = "United States",

}

Liu, Y, Zuo, Z , Feng, H & Wang, Y 2020, Research on control method of linear-generator system used for free-piston energy converter in range extenders. in Proceedings - 2020 3rd World Conference on Mechanical Engineering and Intelligent Manufacturing, WCMEIM 2020., 9409336, Proceedings - 2020 3rd World Conference on Mechanical Engineering and Intelligent Manufacturing, WCMEIM 2020, Institute of Electrical and Electronics Engineers Inc., pp. 527-531, 3rd World Conference on Mechanical Engineering and Intelligent Manufacturing, WCMEIM 2020, Virtual, Shanghai, China, 4/12/20. https://doi.org/10.1109/WCMEIM52463.2020.00116

Research on control method of linear-generator system used for free-piston energy converter in range extenders. / Liu, Yunqi; Zuo, Zhengxing ; Feng, Huihua et al.
Proceedings - 2020 3rd World Conference on Mechanical Engineering and Intelligent Manufacturing, WCMEIM 2020. Institute of Electrical and Electronics Engineers Inc., 2020. p. 527-531 9409336 (Proceedings - 2020 3rd World Conference on Mechanical Engineering and Intelligent Manufacturing, WCMEIM 2020).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Research on control method of linear-generator system used for free-piston energy converter in range extenders

AU - Liu, Yunqi

AU - Zuo, Zhengxing

AU - Feng, Huihua

AU - Wang, Yao

PY - 2020/12

Y1 - 2020/12

N2 - Free-Piston Energy Converter (FPEC) eliminates the crank connecting rod mechanism to realize variable compression ratio. This characteristic gives FPEC multi-fuel adaptability to achieve clean fuel power generation and higher efficiency. However, the lack of crank connecting rod mechanism makes FPEC susceptible to interference, and it is difficult to achieve stable operation. This paper focuses on the control method of Linear-Generator System (LGS) and the design of LGS controller. The LGS controller is composed of force controller and current controller. In Matlab / Simulink, we established the mathematical models of FPEC, where the LGS controller successfully realized the stable operation of FPEC with the target compression ratio, under the conditions of combustion fluctuations and external interference. And the tolerance of actual compression ratio is within 1%. Therefore, the control method is effective, and we can assume that FPEC as a range extender for hybrid vehicles has promising future adoption.

AB - Free-Piston Energy Converter (FPEC) eliminates the crank connecting rod mechanism to realize variable compression ratio. This characteristic gives FPEC multi-fuel adaptability to achieve clean fuel power generation and higher efficiency. However, the lack of crank connecting rod mechanism makes FPEC susceptible to interference, and it is difficult to achieve stable operation. This paper focuses on the control method of Linear-Generator System (LGS) and the design of LGS controller. The LGS controller is composed of force controller and current controller. In Matlab / Simulink, we established the mathematical models of FPEC, where the LGS controller successfully realized the stable operation of FPEC with the target compression ratio, under the conditions of combustion fluctuations and external interference. And the tolerance of actual compression ratio is within 1%. Therefore, the control method is effective, and we can assume that FPEC as a range extender for hybrid vehicles has promising future adoption.

KW - Free-piston energy converter

KW - Linear-generator system

KW - Range Extenders

UR - https://www.scopus.com/pages/publications/85105398171

U2 - 10.1109/WCMEIM52463.2020.00116

DO - 10.1109/WCMEIM52463.2020.00116

M3 - Conference contribution

AN - SCOPUS:85105398171

T3 - Proceedings - 2020 3rd World Conference on Mechanical Engineering and Intelligent Manufacturing, WCMEIM 2020

SP - 527

EP - 531

BT - Proceedings - 2020 3rd World Conference on Mechanical Engineering and Intelligent Manufacturing, WCMEIM 2020

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 3rd World Conference on Mechanical Engineering and Intelligent Manufacturing, WCMEIM 2020

Y2 - 4 December 2020 through 6 December 2020

ER -

Liu Y, Zuo Z , Feng H, Wang Y. Research on control method of linear-generator system used for free-piston energy converter in range extenders. In Proceedings - 2020 3rd World Conference on Mechanical Engineering and Intelligent Manufacturing, WCMEIM 2020. Institute of Electrical and Electronics Engineers Inc. 2020. p. 527-531. 9409336. (Proceedings - 2020 3rd World Conference on Mechanical Engineering and Intelligent Manufacturing, WCMEIM 2020). doi: 10.1109/WCMEIM52463.2020.00116

Research on control method of linear-generator system used for free-piston energy converter in range extenders

Abstract

Publication series

Conference

UN SDGs

Keywords

Access to Document

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