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Magnetic coupling underwater propeller based on magnetic moment angle control and control method

A magnetic coupling and thruster technology, which is applied to permanent magnet clutches/brakes, propulsion components, ship propulsion, etc., can solve the problems of low transmission efficiency of underwater propellers and achieve the effect of rapid improvement

Inactive Publication Date: 2021-04-16
西安精密机械研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of low transmission efficiency of existing underwater propellers, and provide a magnetically coupled underwater propeller and control method based on magnetic moment angle control

Method used

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  • Magnetic coupling underwater propeller based on magnetic moment angle control and control method
  • Magnetic coupling underwater propeller based on magnetic moment angle control and control method
  • Magnetic coupling underwater propeller based on magnetic moment angle control and control method

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Embodiment Construction

[0029] Below in conjunction with accompanying drawing and specific embodiment content of the present invention is described in further detail:

[0030] like Figure 3-Figure 4 As shown, a magnetically coupled underwater thruster based on magnetic moment angle control includes a cabin, a power supply, a microprocessor controller (MCU), a signal conditioning module, an AD sampling module, a digital isolation module, a MOS driver module, MOSFETs, Brush motor, magnetic coupling drive unit and impeller.

[0031] Since the input control voltage is 28V, in order to obtain the low voltage required by the control unit, a standardized DC / DC module power supply is used. DL-JDC28S15 / 1000M is a 28V input, 15V / 1A output module, which can provide the control voltage for the MOS drive module , DL-JDC28S05 / 500M is a 28V input, 5V / 0.5A output module, which can provide the power supply voltage of the MCU.

[0032] The microprocessor controller (MCU) adopts the ARM core microprocessor controlle...

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Abstract

The invention provides a magnetic coupling underwater propeller based on magnetic moment angle control and a control method. The problem that an existing underwater propeller is low in transmission efficiency is solved. The control method comprises the following steps: 1) measuring a flux density value of a magnetic coupling transmission unit in a current control period, and obtaining a current magnetic torque angle of the magnetic coupling transmission unit according to a corresponding relation between the flux density value of the magnetic coupling transmission unit and the magnetic torque angle; and 2) comparing the current magnetic moment angle obtained in the step 1) with the optimal magnetic moment angle, and adjusting the PWM duty ratio change rate of the propulsion motor, so that the rotating speed of the propulsion motor reaches the target rotating speed, and the magnetic coupling transmission unit is ensured to maintain the maximum torque output state.

Description

technical field [0001] The invention belongs to the technical field of underwater thruster control, and in particular relates to a magnetically coupled underwater thruster based on magnetic moment angle control and a control method. Background technique [0002] The principle of magnetic coupling transmission is to transmit torque through the interaction of two magnetic fields inside and outside established by permanent magnets. The two magnetic fields are separated by an isolation cover, and the isolation cover acts as a seal. Compared with the traditional contact dynamic seal transmission, the rotating part and the stationary part are in a non-contact manner, which is more suitable for the needs of large submerged deep transmission operations, with long working life and maintenance-free equipment. [0003] However, the current underwater propellers that use magnetic coupling for transmission cannot quickly increase the torque to the maximum and maintain the maximum torque ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63G8/08B63H21/17H02K49/10
Inventor 刘巍范辉吕建国杨贺然
Owner 西安精密机械研究所
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