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飞轮系统
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  flywheel system
    Research on Three-axe Micro Flywheel System for PicoSat Attitude Control
    用于皮卫星姿态控制的三轴微飞轮系统研究
短句来源
    In accordancewith bias flywheel system, based on classicality control theory, a PID control lawfor pitching and non-least phase control law for rolling-yawing are developed.
    而飞轮系统由于其控制精度高、寿命长、抗干扰性强等特点,在长寿命,高精度的卫星中得到广泛的应用。 本文针对偏置动量飞轮系统,基于经典控制理论设计俯仰通道的PID控制律和滚动—偏航通道的非最小相位控制律;
短句来源
    With the flying development of flywheel technology、 power electronics technology、 intelligent control technology, integrating satellite energy storage and attitude control which making use of high speed flywheel system grows to maturity.
    随着飞轮技术、电力电子技术、智能控制技术的飞速发展,利用高速飞轮系统同时实现卫星的能量储存和姿态控制成为可能。
短句来源
    In order to improve the reliability of the flywheel system,the bang-bang Hall devices are usually mounted on the stator to detect the position of the rotor.
    为提高飞轮系统的可靠性,通常在电机定子上安装开关式Hall器件来检测转子的位置。
短句来源
    Reaction wheel is an important executive component of satellite attitude control system,and the improvement of flywheel system is spurred by high performance satellite attitude control system.
    反作用飞轮是卫星姿态控制系统的重要执行元件,提高飞轮系统的性能对卫星姿态控制系统具有重要意义。
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    4.The typical flywheel installation considering reliability and optimal installation are analyzed, and their stable state performances are studied.
    4、分析了飞轮系统在考虑可靠性、最佳安装结构情况下飞轮典型安装结构,并对飞轮的稳态运行性能进行了分析。
短句来源
    The CMG is different from traditional flywheel systems for singularity problems, and therefore the research on CMG is concentrated on the steering law study for avoiding singularity.
    控制力矩陀螺系统不同于传统的飞轮系统,存在奇异问题。 因此控制力矩陀螺系统理论研究工作主要集中在控制力矩陀螺如何避免奇异的控制律问题的研究上。
短句来源
    Now, flywheels systems are elected as the actuators of attitude control system with high precision for most spacecrafts.
    目前空间飞行器的高精度姿态控制系统大多采用飞轮系统
短句来源
    In allusion to zero momentum wheel system,Analyse about security of zero momentum wheel is made,then several structures which can be used to this system are given.
    针对零动量飞轮系统,首先对零动量轮的可靠性进行了分析,并且给出了常用的几种应用于卫星的零动量轮执行机构的安装结构。 在此基础上对卫星模型进行了合理的简化,得到简化了的系统模型。
短句来源
    The zeros momentum wheel system constituted by four bias momentum wheels is used as the actuator in the attitude control system.
    采取了利用4个偏置动量轮系统组成三轴零动量飞轮系统对卫星平台进行姿态控制.
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  flywheel system
A superconducting magnetic bearing was built and integrated in a levitating flywheel system for energy storage.
      
A group of 21 male subjects performed maximal knee extensions at four levels of external loading provided by a flywheel system.
      
Interaction of rotational and vibrational motions in a flywheel system with a friction clutch
      
A flywheel system includes the components necessary to store and discharge energy in a rotating mass.
      
A shaft connects the hub to the rest of the flywheel system.
      
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Fly wheel system is widely used in majority of spacecrafts to control three axes attitude recently. Its precision is higher than that of small thruster system. But the magnetic suspension momentum wheel has better performance than the conventional ball bearing momentum wheel in spacecraft attitude control. The gimbal magnetic suspension momentum wheel developed from the ordinary one can adjust the angular orientation of its spin axis and complete three axes attitude control in high precision separately, which...

Fly wheel system is widely used in majority of spacecrafts to control three axes attitude recently. Its precision is higher than that of small thruster system. But the magnetic suspension momentum wheel has better performance than the conventional ball bearing momentum wheel in spacecraft attitude control. The gimbal magnetic suspension momentum wheel developed from the ordinary one can adjust the angular orientation of its spin axis and complete three axes attitude control in high precision separately, which has great value in practice. Simultaneously, the study for gimbal magnetic suspension momentum wheel can benefit the integrated power and attitude control system technologically. This paper describes the research status and development of the gimbal magnetic suspension momentum wheel in detail. Then the key technologies are analyzed. Finally the example of structure design is introduced.

目前大部分空间飞行器三轴姿态控制采用的是飞轮系统 ,其精度较高 ,而采用磁悬浮轴承支承的动量轮比普通的滚珠轴承动量轮有更高的姿控性能。在此基础上发展的动量矩方向可改变的万向磁悬浮动量轮可以单独实现三轴较高精度的主动姿态控制 ,具有重要的实用价值。同时 ,万向磁悬浮动量轮的研究也为集成能源与姿态控制系统的研究提供了技术支持。文意介绍了万向磁悬浮动量轮在国际上研究和发展的情况 ,概括了其中的关键技术 ,并给出了一种初步的结构设计实例。

The problem of variable structure attitude stabilization control for a large flexible satellite is investigated. Firstly, the dynamic model of the satellite is established using the Lagrange Equation, the linearization of the dynamic model is done, and the state observer is designed for the design of the variable structure controller. Then the variable structure controller is designed. In the process of designing variable structure controller , the requirements of the engineering are considered, and the boundary...

The problem of variable structure attitude stabilization control for a large flexible satellite is investigated. Firstly, the dynamic model of the satellite is established using the Lagrange Equation, the linearization of the dynamic model is done, and the state observer is designed for the design of the variable structure controller. Then the variable structure controller is designed. In the process of designing variable structure controller , the requirements of the engineering are considered, and the boundary layer method is used to weaken the chattering of the variable structure controller. The limitation of the actuator output is considered at the same time. The zeros momentum wheel system constituted by four bias momentum wheels is used as the actuator in the attitude control system. Finally, the mathematical simulation is conducted to demonstrate the validity of the variable structure controller.

首先利用拉各朗日方程建立了大型柔性卫星的动力学方程,对该动力学方程进行了线性化,并且为了以后设计变结构控制器的需要,设计了状态观测器,然后设计了变结构控制器.在设计过程中,充分考虑了实际工程要求,采用了边界层方法来削弱变结构控制器的抖振,同时考虑了执行机构控制输出受限的情况.采取了利用4个偏置动量轮系统组成三轴零动量飞轮系统对卫星平台进行姿态控制.最后通过数学仿真证明了所设计的控制器的有效性.

In order to keep the attitude of satellite and store en-ergy, the Brushless DC (BLDCM) applied on storage flywheelsystem should serve as drive motor and generate motor . BLD-CM digital control system based on DSP TMS320LF2407 appliedin storage flywheel is discussed. The speed control algorithm andcommutation of sensor is realized by DSP. Power drive is real-ized by IPM.

储能飞轮系统为了实现卫星飞行姿态控制和能量储存,要求系统中的无刷直流电机同时具有电动和发电两种功能。本文研究了基于DSP储能飞轮用无刷直流电机的数字控制系统。DSP实现控制PI算法和软件换相,功率驱动由IPM实现。

 
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