CN110332236A - A kind of high security, low-power consumption and integrated magnetic bearing control system - Google Patents
A kind of high security, low-power consumption and integrated magnetic bearing control system Download PDFInfo
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- CN110332236A CN110332236A CN201910670617.7A CN201910670617A CN110332236A CN 110332236 A CN110332236 A CN 110332236A CN 201910670617 A CN201910670617 A CN 201910670617A CN 110332236 A CN110332236 A CN 110332236A
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- magnetic bearing
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- control
- sensor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0444—Details of devices to control the actuation of the electromagnets
- F16C32/0451—Details of controllers, i.e. the units determining the power to be supplied, e.g. comparing elements, feedback arrangements with P.I.D. control
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses a kind of high security, low-power consumption and integrated magnetic bearing control systems, including sensor module, signal conditioning module, core processor module, power amplifier module and communication module；Core of the invention processor module uses SmartFusion2 chip, is integrated with ARM Cortex-M3 processor, the quick flashing FPGA architecture of inherent reliability, safe handling accelerator, DSP module, SRAM, AD/DA module and multiple communication interface modules；After sensor module acquires the data such as magnetic bearing rotor displacement signal, tach signal, magnetic bearing coil current, signal conditioning module improves the sensor data, it is then transferred to core processor module, core processor module carries out active control to electromagnetic bearing according to pre-defined algorithm；The present invention realizes the Integration Design of magnetic bearing digitial controller, so that controller integrated level greatly improves, reduces volume and power consumption, improves the reliability of controller, improves design and the safety of data.
Description
Technical field
The present invention relates to a kind of high security, low-power consumption and integrated magnetic bearing control systems, for magnetic bearing system
System carries out active control, especially suitable for low-power consumption, highly reliable, high integration or the high occasion of security requirement.
Background technique
Magnetic bearing is a kind of novel product of the one such as mechanical, the electrical, magnetism of fusion, industry, aerospace, automobile,
The fields such as household electrical appliances are with a wide range of applications.
Existing magnetic bearing controller is mainly digitial controller, and controller platform mostly uses greatly the framework of DSP+FPGA.
The advantages of this control system is: system architecture is mature, is widely used.Wherein, to requirement of real time height, high-speed parallel is needed
Link such as PWM output, multi-channel A/D synchronized sampling etc. are mostly completed by FPGA, and complicated magnetic bearings control algorithm is completed by DSP.This
The shortcomings that kind control system is that level of integrated system is low, volume is big, reliability reduces, and the intermediate link of information transmission is too many, core
Heart processor works to control peripheral components, needs frequently to be communicated with peripheral chip, cause under stability
Drop.
Also document shows controller platform using single FPGA as core processor.Due to FPGA program capacity
Dependent on chip hardware resource, hardware cost is improved.In addition, using the core processor of FPGA design system, needed for system
The functions IP kernels such as data acquisition, interface communication, the memory read/write wanted are required to designed, designed emulation, and heavy workload, design is again
Miscellaneous, debugging difficulty is big.
Document shows in space application, in order to avoid space ionizing radiation, especially list overturn the influence of effect,
The lesser anti-fuse type FPGA of capacity is mostly used greatly, but can not achieve complicated algorithm；According to the biggish FLASH type of capacity
FPGA, and special refresh circuit need to be configured, increase system complexity.
Document shows not using special design protection measure based on DSP or FPGA system, design or data safety
Property is low, is easy to be tampered, clone, reverse engineering and forgery.For needing to protect the design program and data of secret and high value
The equal very high occasion of security requirements, above-mentioned platform are all not applicable.
Document shows that in special occasions such as aerospaces, system power dissipation is also an important restrictions item.Based on DSP or
The control system of FPGA, oneself power consumption is higher, and application range is restricted.
In conclusion current magnetic bearing control system that there are hardware circuits is complicated, volume is big, integrated level is low, power consumption compared with
Greatly, the problems such as safety is not high.
Summary of the invention
(1) technical problems to be solved
To solve the above problems, the present invention provides a kind of high security, low-power consumption and integrated magnetic bearing control system,
The Integration Design of magnetic bearing digitial controller is realized, so that controller integrated level greatly improves, reduces volume and power consumption,
The reliability for improving controller improves design and the safety of data.
(2) technical solution
A kind of high security, low-power consumption and integrated magnetic bearing control system of the invention, including sensor module, letter
Number conditioning module, core processor module, power amplifier module and communication module；Wherein, the sensor module includes turning
Sub- displacement sensor, magnetic bearing coil current sensor, rotor speed sensor；The sensor module obtains magnetic axis respectively
Forward sub- displacement signal, magnetic bearing coil current signal, rotor speed signal；The signal conditioning module includes displacement sensing
Device signal conditioning circuit, magnetic bearing current sensor signal conditioning circuit, rotor speed signal conditioning circuit；The signal tune
It manages the sensor signal that module obtains the sensor module and carries out low-pass filtering, shaping etc., so that meeting core processing
The demand of device module interface and control algolithm；The magnetic axis that the core processor module obtains the signal conditioning module
Sub- displacement signal, magnetic bearing coil current signal, rotor speed signal are forwarded, rotor suspension control amount is generated by control algolithm
And PWM modulation is carried out, then the magnetic bearing pwm signal that modulation is completed is given to the power amplifier module；The function
Rate amplification module includes magnetic bearing driving circuit, magnetic bearing full-bridge transducing circuit；Magnetic bearing pwm signal is by magnetic bearing driving electricity
Road sends magnetic bearing full-bridge transducing circuit to, control electric current needed for generating magnetic bearing coil, so that rotor is located at desired position
It sets；The communication module includes CAN interface, RS232 interface and RS422 interface；Communication module be connected to computer, it can be achieved that
The on-line debugging of magnetic bearing system obtains the status data of magnetic bearing in real time, or by the communication module by computer
Control instruction be sent to the core processor module.
Further, the core processor module is integrated using a piece of Smart Fusion2 chip as processor
ARM Cortex-M3 processor, the quick flashing FPGA architecture of inherent reliability, safe handling accelerator, DSP module, SRAM,
AD/DA module and multiple communication interface modules complete the closed-loop control of magnetic bearing rotor.
Further, the algorithm flow of the control system is that control computer is by communication interface first, to core
Processor module sends control instruction, and core processor module is according to magnetic bearing buy stop order, the magnetic bearing rotor displacement of feedback
Signal, magnetic bearing coil current signal, rotor speed signal solve control amount, and real-time transmission according to scheduled control algolithm
To magnetic bearing full-bridge transducing circuit, control electric current needed for generating magnetic bearing coil, so that rotor is located at desired position, together
When, magnetic bearing current operating conditions parameter is uploaded to control computer in time.
Further, the control algolithm is the pid control algorithm with cross feedback.
(3) beneficial effect
The present invention compared with prior art, it is digital control to have the advantages that the present invention realizes magnetic bearing
The Integration Design of device reduces volume and power consumption so that controller integrated level greatly improves, and improves the reliable of controller
Property, improve design and the safety of data.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is structure composition block diagram of the invention.
Fig. 2 is magnetic bearings control functional block diagram of the invention.
Specific embodiment
As preferred embodiments of the present invention:
A kind of high security, low-power consumption and integrated magnetic bearing control system as shown in Figure 1, it is characterised in that: packet
Include sensor module, signal conditioning module, core processor module, power amplifier module and communication module；Wherein, the biography
Sensor module includes rotor displacement sensor, magnetic bearing coil current sensor, rotor speed sensor；The sensor die
Block obtains magnetic bearing rotor displacement signal, magnetic bearing coil current signal, rotor speed signal respectively；The signal condition mould
Block includes displacement transducer signal conditioning circuit, magnetic bearing current sensor signal conditioning circuit, rotor speed signal condition electricity
Road；The sensor signal that the signal conditioning module obtains the sensor module carries out low-pass filtering, shaping etc., makes
The demand of core processor module interface and control algolithm must be met；The core processor module is by the signal condition
Magnetic bearing rotor displacement signal, the magnetic bearing coil current signal, rotor speed signal of module acquisition, are generated by control algolithm
Rotor suspension control amount is simultaneously carried out PWM modulation, then the magnetic bearing pwm signal that modulation is completed is given to the power amplification
Module；The power amplifier module includes magnetic bearing driving circuit, magnetic bearing full-bridge transducing circuit；Magnetic bearing pwm signal warp
Magnetic bearing driving circuit is crossed, sends magnetic bearing full-bridge transducing circuit to, control electric current needed for generating magnetic bearing coil, so that turning
Son is located at desired position；The communication module includes CAN interface, RS232 interface and RS422 interface；Communication module connection
To computer, it can be achieved that the on-line debugging of magnetic bearing system, obtains the status data of magnetic bearing, or lead to by described in real time
The control instruction of computer is sent to the core processor module by letter module；
Wherein, the core processor module is integrated with using a piece of Smart Fusion2 chip as processor
ARM Cortex-M3 processor, the quick flashing FPGA architecture of inherent reliability, safe handling accelerator, DSP module, SRAM, AD/
D/A module and multiple communication interface modules complete the closed-loop control of magnetic bearing rotor；
The algorithm flow of the control system is that control computer is by communication interface first, to core processor module
Control instruction is sent, core processor module is according to magnetic bearing buy stop order, magnetic bearing rotor displacement signal, the magnetic bearing of feedback
Coil current signal, rotor speed signal solve control amount according to scheduled control algolithm, and real-time transmission is to magnetic bearing full-bridge
Transducing circuit, control electric current needed for generating magnetic bearing coil, so that rotor is located at desired position.Meanwhile magnetic bearing being worked as
Preceding running state parameter is uploaded to control computer in time；
The control algolithm is the pid control algorithm with cross feedback.
The solution have the advantages that: the present invention realizes the control of magnetic bearing using a piece of Smart Fusion2 chip.Control
The algorithm flow of system processed is control computer first by communication interface, sends control instruction, core to core processor module
Heart processor module according to magnetic bearing buy stop order, the magnetic bearing rotor displacement signal of feedback, magnetic bearing coil current signal, turn
Rotor speed signal solves control amount according to scheduled control algolithm, and real-time transmission generates magnetic to magnetic bearing full-bridge transducing circuit
Control electric current needed for bearing coil so that rotor is located at desired position, meanwhile, by magnetic bearing current operating conditions parameter and
When be uploaded to control computer.The control algolithm that the present invention uses is the pid control algorithm with cross feedback.More existing magnetic axis
Controller is held, the present invention has many advantages, such as that circuit structure is simple, small in size, light-weight, low in energy consumption, debugging is flexible and convenient.It is more existing
The magnetic bearing control system of some core processors collocation Peripheral Controller, the present invention have system on chip function with a piece of
High speed Smart Fusion2 chip replaces, to save the interface circuit design of processor and peripheral chip, reduces function
Consumption, improves the overall stability of system.More existing magnetic bearing controller, design of the invention and data are highly-safe, lead to
The design for being easy to protect secret and high value using the design protection function based on non-volatile flash technology is crossed, prevent from distorting,
Clone, reverse engineering and forgery.More existing magnetic bearing controller, system power dissipation of the invention is low, in of short duration intermittently active
Power consumption declines to a great extent in low duty ratio application.More existing magnetic bearing controller, system reliability of the invention is high, answers in space
Used time has single-particle inversion immunocompetence.
The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to structure of the invention
Think and range is defined.Without departing from the design concept of the invention, ordinary people in the field is to technology of the invention
The all variations and modifications that scheme is made, should all drop into protection scope of the present invention, the claimed technology contents of the present invention,
It is all described in the claims.
Claims (4)
1. a kind of high security, low-power consumption and integrated magnetic bearing control system, it is characterised in that: including sensor module,
Signal conditioning module, core processor module, power amplifier module and communication module；Wherein, the sensor module includes
Rotor displacement sensor, magnetic bearing coil current sensor, rotor speed sensor；The sensor module obtains magnetic respectively
Bearing rotor displacement signal, magnetic bearing coil current signal, rotor speed signal；The signal conditioning module includes that displacement passes
Sensor signal conditioning circuit, magnetic bearing current sensor signal conditioning circuit, rotor speed signal conditioning circuit；The signal
The sensor signal that conditioning module obtains the sensor module carries out low-pass filtering, shaping etc., so that meeting at core
Manage the demand of device module interface and control algolithm；The magnetic that the core processor module obtains the signal conditioning module
Bearing rotor displacement signal, magnetic bearing coil current signal, rotor speed signal generate rotor suspension control by control algolithm
PWM modulation is measured and carried out, then the magnetic bearing pwm signal that modulation is completed is given to the power amplifier module；Described
Power amplifier module includes magnetic bearing driving circuit, magnetic bearing full-bridge transducing circuit；Magnetic bearing pwm signal drives by magnetic bearing
Circuit sends magnetic bearing full-bridge transducing circuit to, control electric current needed for generating magnetic bearing coil, so that rotor is positioned at desired
Position；The communication module includes CAN interface, RS232 interface and RS422 interface；Communication module is connected to computer, can be real
The on-line debugging of existing magnetic bearing system obtains the status data of magnetic bearing in real time, or will be calculated by the communication module
The control instruction of machine is sent to the core processor module.
2. a kind of high security according to claim 1, low-power consumption and integrated magnetic bearing control system, feature exist
In: the core processor module, as processor, is integrated with ARM Cortex- using a piece of Smart Fusion2 chip
M3 processor, the quick flashing FPGA architecture of inherent reliability, safe handling accelerator, DSP module, SRAM, AD/DA module and multiple
Communication interface modules completes the closed-loop control of magnetic bearing rotor.
3. a kind of high security according to claim 1, low-power consumption and integrated magnetic bearing control system, feature exist
In: the algorithm flow of the control system is that control computer is sent by communication interface to core processor module first
Control instruction, core processor module is according to magnetic bearing buy stop order, magnetic bearing rotor displacement signal, the magnetic bearing coil of feedback
Current signal, rotor speed signal solve control amount according to scheduled control algolithm, and real-time transmission is to magnetic bearing full-bridge transducing
Circuit, control electric current needed for generating magnetic bearing coil, so that rotor is located at desired position, meanwhile, magnetic bearing is currently transported
Row state parameter is uploaded to control computer in time.
4. a kind of high security according to claim 1, low-power consumption and integrated magnetic bearing control system, feature exist
In: the control algolithm is the pid control algorithm with cross feedback.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910670617.7A CN110332236A (en) | 2019-07-24 | 2019-07-24 | A kind of high security, low-power consumption and integrated magnetic bearing control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910670617.7A CN110332236A (en) | 2019-07-24 | 2019-07-24 | A kind of high security, low-power consumption and integrated magnetic bearing control system |
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| Publication Number | Publication Date |
|---|---|
| CN110332236A true CN110332236A (en) | 2019-10-15 |
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ID=68147271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910670617.7A Pending CN110332236A (en) | 2019-07-24 | 2019-07-24 | A kind of high security, low-power consumption and integrated magnetic bearing control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110939654A (en) * | 2019-10-25 | 2020-03-31 | 珠海格力电器股份有限公司 | Magnetic suspension bearing control method and device, storage medium and magnetic suspension system |
| CN115680887A (en) * | 2022-10-13 | 2023-02-03 | 中国航发四川燃气涡轮研究院 | System and method for controlling magnetic bearing of aero-engine |
-
2019
- 2019-07-24 CN CN201910670617.7A patent/CN110332236A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110939654A (en) * | 2019-10-25 | 2020-03-31 | 珠海格力电器股份有限公司 | Magnetic suspension bearing control method and device, storage medium and magnetic suspension system |
| CN110939654B (en) * | 2019-10-25 | 2020-10-09 | 珠海格力电器股份有限公司 | Magnetic suspension bearing control method and device, storage medium and magnetic suspension system |
| CN115680887A (en) * | 2022-10-13 | 2023-02-03 | 中国航发四川燃气涡轮研究院 | System and method for controlling magnetic bearing of aero-engine |
| CN115680887B (en) * | 2022-10-13 | 2024-05-17 | 中国航发四川燃气涡轮研究院 | Aeroengine magnetic bearing control system and method |
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Application publication date: 20191015 |
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