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Untwisting Spin Low-Cost Platform Design Used for Strap-Down Inertial Navigation System in High-Speed Spin Flight Vehicle

机译:高速自旋飞行器捷联惯性导航系统的解旋自旋低成本平台设计

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摘要

Flight vehicle high-speed spin movement has caused difficulties in the application of the strap-down inertial navigation system due to gyroscope performance limits. One method for designing a low-cost untwisting spin platform used for high-speed spin flight vehicle is proposed. A permanent magnet synchronous motor (PMSM) is selected as the drive motor. The platform and PMSM rotor are directly connected to reduce the influence of the gear clearance on inertial measurement unit measurement accuracy. Signal transmission between the spin flight vehicle and micro-electro-mechanical system (MEMS) gyroscope is carried out by a slip ring. The PMSM is controlled by a speed loop and current loop without angle loop, which is able to achieve fast tracking of flight vehicle spin movement and reduce the MEMS gyroscope output noise influence on platform performance. The demand on gyroscope performance is also decreased. The design method is verified experimentally and results show that the method can not only effectively isolate the inertial measurement unit from the spin movement of the flight vehicle, but also decrease the attitude angle error.
机译:由于陀螺仪的性能限制,飞行器的高速自旋运动在捷联惯性导航系统的应用中造成了困难。提出了一种设计用于高速自旋飞行器的低成本解旋自旋平台的方法。选择永磁同步电动机(PMSM)作为驱动电动机。平台和PMSM转子直接连接,以减少齿轮间隙对惯性测量单元测量精度的影响。旋转飞行器与微机电系统(MEMS)陀螺仪之间的信号传输是通过滑环实现的。 PMSM由速度环和不带角度环的电流环控制,能够快速跟踪飞行器的旋转运动,并减少MEMS陀螺仪输出噪声对平台性能的影响。对陀螺仪性能的要求也降低了。实验验证了该设计方法的有效性,结果表明该方法不仅可以有效地将惯性测量单元与飞行器的旋转运动隔离开,而且可以减小姿态角误差。

著录项

  • 来源
  • 作者

    Decheng Wang; Hui Lin; Rong Qi;

  • 作者单位

    Shaanxi Key Laboratory of Small & Special Electrical Machine and Drive Technology, Automatic School, Northwestern Polytechnical University, Xi'an, People's Republic of China;

    Shaanxi Key Laboratory of Small & Special Electrical Machine and Drive Technology, Automatic School, Northwestern Polytechnical University, Xi'an, People's Republic of China;

    Shaanxi Key Laboratory of Small & Special Electrical Machine and Drive Technology, Automatic School, Northwestern Polytechnical University, Xi'an, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Strap-Down Inertial Navigation System; PMSM; MEMS Gyroscope; Untwisting Spin; Platform;

    机译:捷联惯性导航系统;PMSM;MEMS陀螺仪松开旋转平台;

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