CN204539015U - A kind of novel embedded synchronous motor excitation control unit - Google Patents
A kind of novel embedded synchronous motor excitation control unit Download PDFInfo
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- CN204539015U CN204539015U CN201420818959.1U CN201420818959U CN204539015U CN 204539015 U CN204539015 U CN 204539015U CN 201420818959 U CN201420818959 U CN 201420818959U CN 204539015 U CN204539015 U CN 204539015U
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Abstract
A kind of novel embedded synchronous motor excitation control unit, relates to a kind of synchronous motor excitation control system, specifically a kind of synchronous motor excitation control unit.It is characterized in that adopting DSP to control as core and ARM as the control mode of the dual processors of host computer data processing, and introduce embedded OS and embedded database.While guarantee precision, the advantage that ARM and DSP is respective can be given full play to, improves the real-time of synchronous motor excitation control unit, stability, fail safe; Control unit flexible design, is easy to expansion and safeguards; Greatly facilitate the management of client to data.
Description
Technical field
The utility model relates to a kind of synchronous motor excitation control system, specifically a kind of synchronous motor excitation control unit.
Background technology
Excitation con-trol unit is the important component part of Synchronous Motor Excitation System, and its performance directly has influence on synchronous motor reliability of operation and stability.Due to the various restrictions of synchronous motor self, the increase of defencive function, more and more higher requirement is proposed to the aspect such as rapidity, reliability, robustness of excitation con-trol unit.The development of control theory, power electronic technology, computer technology and chip fabrication techniques, facilitates constantly bringing forth new ideas of excitation con-trol unit, and digitizing technique becomes the effective means that excitation con-trol unit reaches a new height.In synchronous motor excitation control, mainly contain the solution of two kinds of main flows, a kind of is adopt single arm processor as the mode of core controller; A kind of is adopt single dsp controller as the mode of core controller.
Adopt single arm processor as core controller at synchronous motor excitation control unit, ARM is responsible for the analogue data of acquisition and processing outside, the data upload that these collect by ARM mono-aspect shows in touch-screen, export excitation con-trol information on the other hand to power switch component, realize the excitation con-trol to synchronous motor.
The excitation con-trol unit of this employing ARM controller, although it can reach very high data sampling frequency, the speed of its Digital Signal Processing and precision is not so good as industrial conventional DSP.
Adopt single dsp controller as the core controller of synchronous motor excitation control unit, the analogue data of acquisition and processing outside has all been come by DSP, DSP mono-aspect will collect in various data upload to touch-screen and show, export excitation con-trol information on the other hand to power switch component, realize the excitation con-trol to synchronous motor.
Although DSP has outstanding digital signal processing capability, but because it adopts touch-screen to process and management data, this just produces certain impact to the performance of whole control unit, is real-time and the stability that can weaken control unit on the one hand, makes whole control unit underaction on the other hand.
Summary of the invention
In order to namely very high data sampling frequency can be reached, speed and the precision of Digital Signal Processing can be ensured again, and real-time and the stability of control unit can not be weakened, make whole control unit can be flexible.The utility model have employed the scheme adopting DSP and ARM to combine in synchronous motor excitation control unit.
Industry Control solution based on ARM and DSP is a lot, but does not also use the example of this scheme at synchronous motor excitation control field.And the real-time of existing two kinds of mainstream technologys and flexibility are good all not.
The scheme adopting DSP and ARM to combine in synchronous motor excitation control unit, adopts DSP as core controller, adopts ARM as host computer; Analog input inputs to DSP after the process of AD sampling A/D chip, and DSP sends sampled data to ARM, and exports control information to switch element, and adopt LCD touch screen as display system, LCD touch screen is connected with ARM.DSP is as core controller, it has powerful data-handling capacity and real-time control capability at a high speed, be responsible for various real time data in control procedure such as collection exciting voltage, exciting current etc., export the pwm pulse that excitation con-trol needs, realize controlling demagnetization, throwing is encouraged, thrown the functions such as total head.Select high performance 32 arm processors as host computer, SOC (system on a chip) solution based on ARM flush bonding processor is applied widely at industrial control field, its various real time datas collected mainly for the treatment of DSP, comprise the curve display of data in LCD touch screen, data store, data message look facility.On hardware, arm processor has abundant Peripheral Interface, and this programme has reserved two USB interface, a SD card interface, an Ethernet interface, CAN interface, a RS485 interface, provides diversity interface select to client.On software, arm processor runs Linux embedded OS, and Linux has powerful, and Scalability is good, and function is easy to advantages such as expanding, real-time is good.Adopt Qt too development host computer application program, be the human-computer interaction interface that client development needs, be convenient to system maintenance and renewal.In order to the management of data is in order convenient, in Linux system, transplant embedded database SQLite.Data in database can be saved in the movable storage device such as USB flash disk or SD card by data easily that collect in excitation con-trol, and client will data copy to PC can be carried out analyze and manage by these mobile devices.
The utility model scheme, while guarantee precision, gives full play to the advantage that ARM and DSP is respective, improves the real-time of synchronous motor excitation control unit, stability, fail safe; Control unit flexible design, is easy to expansion and safeguards; Greatly facilitate the management of client to data.
Accompanying drawing explanation
Fig. 1: synchronous motor excitation control unit principle is always schemed.
Fig. 2: upper computer software systems function diagram.
Embodiment
Fig. 1 is that the principle of synchronous motor excitation control unit is always schemed, analog input inputs to DSP after the process of AD sampling A/D chip, DSP mono-aspect sends these sampled datas obtained to host computer arm processor, export the control information of needs on the other hand to switch element, to reach excitation con-trol object.Host computer ARM extends a lot of interface, has USB interface, SD interface, CAN interface, RS485 interface, Ethernet interface (RJ45) to select for user.Display system adopts LCD touch screen as human-computer interaction device.1, DSP:Digital Signal Processor, digital signal processor; 2, PWM:PulseWidth Modulation, pulse width modulation; 3, LCD:Liquid Crystal Display, liquid crystal display; 4, USB:Universal Serial Bus, USB; 5, SD card: Secure Digital Memory Card, safe digital card; 6, CAN:Controller Area Network, controller local area network.
Fig. 2 is upper computer software systems function diagram, and upper computer software can the display of completion system running status, and client can carry out the setting of parameter by touch screen operation interface; Sampled data can be shown by curve; Establish embedded database, facilitate various data management; There is fault alarm function.These functions be all be based upon embedded OS Linux basis on realize.
Claims (3)
1. a novel embedded synchronous motor excitation control unit, is characterized in that:
Adopt DSP as core controller, adopt ARM as host computer;
Analog input inputs to DSP after the process of AD sampling A/D chip,
DSP sends sampled data to ARM, and exports control information to switch element,
Adopt LCD touch screen as display system, LCD touch screen is connected with ARM.
2. control unit according to claim 1, is characterized in that employing 32 arm processors are as host computer, and the built-in Linux embedded OS having transplanted embedded database SQLite of arm processor.
3. control unit according to claim 1, is characterized in that on hardware, and arm processor has two USB interface, a SD card interface, an Ethernet interface, CAN interface, a RS485 interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420818959.1U CN204539015U (en) | 2014-12-19 | 2014-12-19 | A kind of novel embedded synchronous motor excitation control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420818959.1U CN204539015U (en) | 2014-12-19 | 2014-12-19 | A kind of novel embedded synchronous motor excitation control unit |
Publications (1)
| Publication Number | Publication Date |
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| CN204539015U true CN204539015U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420818959.1U Active CN204539015U (en) | 2014-12-19 | 2014-12-19 | A kind of novel embedded synchronous motor excitation control unit |
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| CN (1) | CN204539015U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106549615A (en) * | 2016-12-06 | 2017-03-29 | 上海纳信实业有限公司 | A kind of exciter control system based on double-nuclear DSP |
-
2014
- 2014-12-19 CN CN201420818959.1U patent/CN204539015U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106549615A (en) * | 2016-12-06 | 2017-03-29 | 上海纳信实业有限公司 | A kind of exciter control system based on double-nuclear DSP |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |