Highly-reliable integrated low-power consumption magnetic levitation flywheel magnetic bearing numerical control device

A digital control, low power consumption technology, applied in the direction of bearings, shafts and bearings, mechanical equipment, etc., can solve the problems of poor integration, poor reliability of aerospace and space applications, high power consumption, and reduce intermediate software and hardware communication links , to achieve the effect of digitization and integration, low power consumption

Inactive Publication Date: 2007-08-08
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem of the present invention is to overcome the problems of poor reliability, poor integration, and high power consumption of the existing two type

Method used

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  • Highly-reliable integrated low-power consumption magnetic levitation flywheel magnetic bearing numerical control device
  • Highly-reliable integrated low-power consumption magnetic levitation flywheel magnetic bearing numerical control device
  • Highly-reliable integrated low-power consumption magnetic levitation flywheel magnetic bearing numerical control device

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Embodiment Construction

[0027] As shown in Figure 1, the magnetic levitation flywheel magnetic bearing digital control device of the present invention is mainly made up of interface circuit 8, displacement signal analog-to-digital conversion chip 6, current signal analog-to-digital conversion chip 13, level conversion chip 14 and FPGA module 3, wherein The interface circuit 8 includes a displacement sensor interface circuit 7 and a current sensor interface circuit 12 , and the FPGA module 3 includes a configuration chip 1 and an FPGA chip 2 . The displacement sensor interface circuit 7 converts the magnetic bearing rotor displacement signal detected by the displacement sensor 10 into a displacement signal in the range of 0V to 5V required by the analog-to-digital conversion chip 6, and the current sensor interface circuit 12 converts the magnetic bearing coil current detected by the current sensor 11 The signal is converted into the range of 0V to 5V required by the current signal analog-to-digital co...

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Abstract

A magnetic levitation flywheel magnetic bearing digital control device which is used in initiative control for the magnetic levitation flywheel magnetic bearing system comprises a interface circuit, a A/D conversion chip, a FPGA module, wherein the interface circuit and the chip get the bit shift single data, the coil current data, the rate signal data of the magnetic bearing rotor; the FPGA module creates a controlling quantity under the hardware assembler of the FPGA chip; wherein the FRGA export to the power amplifier ring basing on the association of the controlling quantity and the current single export and basing on the modulation of PWM, the FPGA module create a control current for the magnetic bearing coil to reach the initiative control of the magnetic levitation flywheel magnetic bearing system. The invention has high reliability, integration, low power consumption.

Description

technical field [0001] The invention relates to a highly reliable, integrated, and low-power consumption digital control device for a magnetic bearing of a magnetic levitation flywheel, which is used for controlling magnetic bearing systems such as a magnetic levitation flywheel, and is suitable for applications such as high reliability, high integration, and low power consumption , especially suitable for aerospace and space applications. Background technique [0002] The flywheel is the basic attitude control actuator on small and medium-sized satellites. Compared with the traditional mechanical bearing flywheel, the magnetic levitation flywheel has the advantages of no contact, no friction, no lubrication, high precision, long life, etc., so it has broad application prospects in satellites. [0003] The existing maglev flywheel controllers are divided into two categories: analog controllers and digital controllers. The analog controller has the disadvantages of large po...

Claims

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Application Information

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IPC IPC(8): F16C32/04
Inventor 房建成刘彬刘刚田希晖刘虎
Owner BEIHANG UNIV
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