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High-speed stepping motor drive circuit for space mechanism and control method thereof

A technology of stepping motors and driving circuits, applied in the direction of motor generator control, control systems, electrical components, etc., can solve problems such as out-of-step stop, motor cannot start, etc., to ensure reliable safety, meet the space environment, and good heat dissipation effect of effect

Inactive Publication Date: 2019-11-19
SHANGHAI AEROSPACE SYST ENG INST
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  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a high-speed stepping motor drive circuit for space mechanism and its control method to solve the problem that the motor cannot be started or stops out of step during startup due to high-speed motion of the stepping motor

Method used

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  • High-speed stepping motor drive circuit for space mechanism and control method thereof
  • High-speed stepping motor drive circuit for space mechanism and control method thereof
  • High-speed stepping motor drive circuit for space mechanism and control method thereof

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Embodiment Construction

[0022] The high-speed stepping motor driving circuit for the space mechanism proposed by the present invention and its control method will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that the drawings are all in a very simplified form and use imprecise ratios, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0023] The core idea of ​​the present invention is that the high-speed stepping motor drive circuit for the space mechanism provided by the present invention adopts a discrete structure in the drive control circuit to achieve a good heat dissipation effect. The discrete devices used are all of astronaut level, which can well meet the space environment. The control method of the high-speed stepping motor driv...

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Abstract

The invention provides a high-speed stepping motor drive circuit for a space mechanism. Four N-channel MOSFETs form a single-phase bypass drive H-bridge circuit, and each MOSFET directly controls theon-off state of the H-bridge circuit. The invention provides a control method of a high-speed stepping motor drive circuit for a space mechanism. According to the high-speed stepping motor drive circuit for the space mechanism provided by the invention, a discrete architecture is adopted in the aspect of a driving control circuit, so that a good heat dissipation effect is achieved. The adopted discrete devices all have astronavigation grades, and the space environment can be well met. The control method of the high-speed stepping motor drive circuit for the space mechanism adopts a reasonablecombination logic, ensures the rapid change of the current of the motor winding through the reasonable switching logic, the high-frequency drive waveform and the sine curve acceleration mode to achieve the high-speed motion of the stepping motor, and the reliability and the safety at the high-speed motion are ensured by setting the dead time.

Description

technical field [0001] The invention relates to the technical field of space mechanism drive control, in particular to a high-speed stepping motor drive circuit for a space mechanism and a control method thereof. Background technique [0002] At present, the movement mechanism with the function of turning and pointing is an important part of the space vehicle. Some mechanisms need to realize fast movement, such as active deployment of solar panels and active deployment of antennas after entering orbit. At the same time, in order to continuously improve the load-to-interference ratio Quantified and miniaturized stepper motors are more and more widely used. Miniaturized motors often use a higher reduction ratio to achieve high-speed motion in order to achieve torque amplification. Therefore, in terms of space mechanism drive control, in order to meet fast response and light weight applications , The demand for high-speed drive of stepper motors is increasing. [0003] In the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P8/12H02P8/14H02P8/04
CPCH02P8/04H02P8/12H02P8/14
Inventor 王涛姚惟琳孙海林侯超李浩杨明亮郑悦李宇
Owner SHANGHAI AEROSPACE SYST ENG INST
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