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Journal of Projectiles, Rockets, Missiles and Guidance >

2022 , Vol. 42 >Issue 5: 42 - 45

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2022.05.009

Sliding Mode Control of Electric Steering Gear Position Servo System of Launch Vehicle Based on ESO

  • LI Yaoyi 1 ,
  • ZHAI Zhiheng 1 ,
  • SUN Xiuyao 1 ,
  • LI Chaowei 1 ,
  • PING Zhaowu 2
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  • 1 Expace Technology Co., Ltd., The Fourth Academy of China Aerospace Science and Industry Corparation, Wuhan 430040, China
  • 2 School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, China

Received date: 2022-01-07

  Online published: 2025-01-16

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Abstract

Steering gear servo system is one of the core components of launch vehicle control system, which needs to have fast dynamic response and anti-interference ability in the process of rocket operation. In this paper, a novel sliding-mode control method is proposed for permanent magnet synchronous electric steering gear position servo system, and an extended state observer (ESO) is designed to estimate and compensate the unknown disturbances. This method can not only achieve fast dynamic response, but also reduce the chattering of control input effectively. In order to validate the advantage of the proposed method, comparative study with the traditional proportional-integral (PI) based triple-loop control method is conducted via simulation. The results show that the proposed method has better position response and disturbance rejection performance.

Key words： launch vehicle; electric steering gear; sliding-mode control; extended state observer; position response

Cite this article

LI Yaoyi , ZHAI Zhiheng , SUN Xiuyao , LI Chaowei , PING Zhaowu . Sliding Mode Control of Electric Steering Gear Position Servo System of Launch Vehicle Based on ESO[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2022 , 42(5) : 42 -45 . DOI: 10.15892/j.cnki.djzdxb.2022.05.009

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