A low-loss, high reliability integration magnetic levitation flywheel DC brushless motor control system

A DC brushless and control system technology, applied in the field of excitation or armature current control, electronic commutator, etc., can solve problems such as difficult to meet the energy supply of spacecraft, unable to achieve high integration design, and reduce system reliability. To achieve the effect of improving anti-interference ability, improving integration and reliability, and improving reliability

Inactive Publication Date: 2007-05-23
BEIHANG UNIV
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Problems solved by technology

[0006] Therefore, the existing control systems for maglev flywheel motors, whether it is an analog control system or a digital control system based on DSP, cannot realize a highly integrated design due to the existence of a large number of peripheral circuits, and all have the problem of large power consumption. To meet the limited energy supply requirements of the spacecraft, and because there is a need for a D / A conversion circuit and a PWM pulse generation circuit between the control signal output by the controller and the PWM pulse for motor drive, the power consumption of the system is further increased. Reduced system reliability

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  • A low-loss, high reliability integration magnetic levitation flywheel DC brushless motor control system
  • A low-loss, high reliability integration magnetic levitation flywheel DC brushless motor control system
  • A low-loss, high reliability integration magnetic levitation flywheel DC brushless motor control system

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Embodiment Construction

[0031]As shown in Figure 1, the present invention is mainly made up of FPGA system 1, interface circuit 4, position sensor interface circuit 5, power module 8, current detection feedback module 12, wherein FPGA system 1 comprises: hardware circuit part and in FPGA chip based on The control algorithm implemented by hardware programming is composed of a hardware circuit part consisting of an FPGA chip and a corresponding power supply configuration chip. The control algorithm implemented based on hardware programming in the FPGA chip includes: position and speed calculation algorithm 2, software phase-locked loop algorithm 17 , Current regulation algorithm 16, PWM pulse generation algorithm 15, step-down chopper PWM pulse generation algorithm 18, AD control algorithm 14. The power module 8 is composed of five parts including a back EMF peak voltage feedback interface circuit 6 , a step-down chopper module 7 , a high-speed optocoupler isolation circuit 19 , a drive circuit 20 , and...

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Abstract

The invention relates to a magnetic suspension flywheel direct-current non-brush motor controlling system, wherein it comprises FPGA system, direct-current detecting feedback module, positioning sensor interface circuit, and power module; the FPGA module obtains request rotation speed from super machine, via sensor interface circuit and feedback module to obtain position signal and current signal, and the control algorism of FPGA, to calculate out the control value, and process reduction chopper PWM modulation, and amplify via amplifying module to generate the needed control current, and realize control accurately. The invention has low power consumption and high reliability.

Description

technical field [0001] The invention relates to a low-consumption, high-reliability integrated magnetic levitation flywheel DC brushless motor control system, which realizes high-precision control of a high-speed DC brushless motor driven by a magnetic levitation flywheel, and is suitable for low power consumption, high integration, high reliability, High-precision precision spacecraft control actuators are also suitable for DC brushless motor control systems that do not require high power consumption, reliability, and integration. Background technique [0002] The flywheel system is the key actuator for attitude control of small and medium-sized spacecraft. It generates the control torque required for attitude control of the spacecraft by changing the rotational speed of the rotor, thereby precisely controlling the attitude of the spacecraft. [0003] The existing motor control systems for maglev flywheels are divided into two categories: analog control systems and digital ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P7/29H02P6/16H02P6/17
Inventor 房建成文通刘刚王志强
Owner BEIHANG UNIV
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