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A flying wheel electromotor control system with magnetic suspending reaction

A reaction flywheel and motor control technology, applied in the direction of single motor speed/torque control, electronic commutator, etc., can solve the problems of complex control of isolated drive circuits, low modulation frequency, and large switch stress, etc., to achieve low power consumption, The effect of high modulation frequency and fast response

Inactive Publication Date: 2008-04-30
BEIHANG UNIV
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Problems solved by technology

[0007] The technical problem solved by the present invention is: to overcome the disadvantages of the motor drive system existing in the prior art, such as complex control, large volume, and large power consumption, and the reliability and low modulation frequency of the integrated drive circuit, and the three-phase permanent magnet The inverter circuit of the brushless DC motor adopts the disadvantages of hard switching mode power consumption, harmonic content, and high switching stress. Magnetic levitation reaction flywheel motor drive system for driving resonant soft switch power switch tubes

Method used

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  • A flying wheel electromotor control system with magnetic suspending reaction
  • A flying wheel electromotor control system with magnetic suspending reaction
  • A flying wheel electromotor control system with magnetic suspending reaction

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Embodiment Construction

[0025] As shown in Figure 1, the present invention mainly consists of an isolated drive circuit 4, a controller 1 with DSP as the core, a speed detection link 2, a current detection link 3, a power amplifier circuit 5, a resonant soft switch control circuit 6, a three-phase permanent magnet Composed of 7 brushed DC motors. The isolated driving circuit 4 is mainly composed of a primary side voltage doubler rectifier circuit 12, a push-pull circuit 13, a pulse transformer 14, a secondary side voltage doubler rectifier circuit 15, a high-pass filter circuit 16, a debounce diode 17, a decoupling capacitor 18 and a discharge transistor 19 composition.

[0026] The capture unit module of the controller 1 with DSP as the core captures the signal of the motor rotor position sensor to obtain the current rotor position, and the PWM waveform generation module generates nine PWM drive signals, and the primary side voltage doubler rectifier circuit 12 converts the nine channels The PWM dr...

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Abstract

A magnetic suspension counteraction flywheel motor control system adapts to control of three-phase permanent-magnet brushless DC motors for magnetic suspension counteraction flywheels, a new generation of high accuracy attitude control actuating mechanism for high-stability satellites. The invention mainly comprises a controller with a core of a Digital Signal Processor (DSP), a power amplifier, an upper bridge arm driving circuit in the power amplifier, a lower bridge arm driving circuit in the power amplifier, a resonance-type soft switch control circuit, a three-phase permanent-magnet brushless DC motor, a current detection circuit, a 28VDC steady power source, a +15VDC steady power source and a +5VDC steady power source. The invention can control On / Off of each power switch tubes on resonance-type soft switches through a non-demodulated isolation driving circuit, so as to fulfill high-reliability but low power-consumption running of control system driving circuits for magnetic suspension counteraction flywheel motors.

Description

technical field [0001] The invention relates to a magnetic levitation reaction flywheel motor control system, which is mainly used to realize the high reliability and low power consumption of the power switch tube gate of the magnetic levitation reaction flywheel motor control system, which is a long-life and high-precision attitude control actuator of a new generation of satellites drive. Background technique [0002] As the actuator of the high-precision and high-stability attitude control system of the new generation satellite platform, the magnetic levitation reaction flywheel has the advantages of high angular momentum output precision, good control linearity, strong anti-interference and fast response speed, etc. It has been gradually applied in the world, and will become the preferred actuator for the new generation of high-precision and high-stability satellite platforms in my country. [0003] The highly reliable drive of the new generation of satellite attitude con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/16H02P6/08H02P6/17
Inventor 房建成周新秀刘刚王志强朱娜
Owner BEIHANG UNIV
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