CN201726109U - Relay protector based on Digital Signal Processor (DSP) and Complex Programmable Logic Device (CPLD) - Google Patents
Relay protector based on Digital Signal Processor (DSP) and Complex Programmable Logic Device (CPLD) Download PDFInfo
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- CN201726109U CN201726109U CN2010202576893U CN201020257689U CN201726109U CN 201726109 U CN201726109 U CN 201726109U CN 2010202576893 U CN2010202576893 U CN 2010202576893U CN 201020257689 U CN201020257689 U CN 201020257689U CN 201726109 U CN201726109 U CN 201726109U
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Abstract
The utility model provides a relay protector based on Digital Signal Processor (DSP) and Complex Programmable Logic Device (CPLD), which comprises a data collection module, a processor module, an in-out module, a communication module, a power supply module and a man-machine exchange module, wherein the power supply module is respectively connected with the processor module and the man-machine exchange module, the data collection module comprises a current and voltage input module, a low-pass wave filter and an Analog-Digital (A/D) conversion module, the processor module comprises a DSP chip, the in-out module comprises a CPLD chip, a photoelectric isolation module, a switching quantity input module and a switching quantity output module, the communication module comprises an Radio Sonde (RS) 422 interface and an RS485 interface, and the man-machine exchange module comprises an Microprogrammed Control Unit (MCU) chip, a press key input device and an Liquid Crystal Display (LCD) device. The utility model has the advantages of strong data processing capability, high operation speed, rich system resources, easy realization of various algorithms, strong function expansibility, simple operation, high integration degree and convenient maintenance, and belongs to the relay protector with higher cost performance.
Description
Technical field
The utility model belongs to the relaying protection field, especially relates to a kind of protective relaying device based on DSP and CPLD.
Background technology
The Microcomputer Protection product of prior art generally adopts single CPU structure; even if adopted dual-cpu structure: protection CPU and MMI man-machine interaction CPU; even it all is the DSP product of 5000 series that adopted the more advanced employing of early stage DSP such as TMS3202812 or VC33 that protection CPU has adopted dsp processor; perhaps the CPU of its microcontroller also adopts traditional singlechip chip basically; and that the limitation of the data-handling capacity of single-chip microcomputer own makes protective device to use is more advanced; it is imperative that the hardware platform that more exact figure filtering algorithm and protection algorithm, high-end DSP are applied to microcomputer protecting device updates.In recent years, the DSP of develop rapidly has become the basic device in fields such as communication, computer, consumer electronics product, becomes the decisive factor that electronic product updates.Abroad, some big companies have used high-end DSP and have developed advanced distribution line relaying protection and measure and control device, though their powerful, superior performance, costs an arm and a leg at complicated operation.
Summary of the invention
It is stronger that the purpose of this utility model provides a kind of its disposal ability of DSP application platform, is easier to realize various algorithms, and function expansibility is strong, and is simple to operate, and the integrated level height is convenient to safeguard the protective relaying device that cost performance is higher.
The technical solution of the utility model is: a kind of protective relaying device based on DSP and CPLD; comprise data acquisition module; processor module; open into leaving module; communication module; power module and man-machine Switching Module; described power module is connected with man-machine Switching Module with described processor module respectively; described data acquisition module comprises the current/voltage input module; low-pass filter and A/D modular converter; described processor module comprises dsp chip; described opening into leaving module comprises the CPLD chip; photoelectric isolation module; switching input module and switching value output module; described communication module comprises RS422 and RS485 interface; described man-machine Switching Module comprises the MCU chip; press key input device and LCD display unit; described current/voltage input module links to each other with described low-pass filter; the output of described low-pass filter links to each other with the input of described A/D modular converter; the output of described A/D modular converter links to each other with described dsp chip; described dsp chip and the two-way connection of described CPLD chip; and described dsp chip is by RS422 interface and the two-way connection of described MCU chip; described CPLD chip links to each other with described switching value output module with described switching input module respectively by described photoelectric isolation module; described MCU chip and described press key input device and the two-way connection of described LCD display unit; the data that described current/voltage acquisition module collects are imported A/D converter through behind the low-pass filter; through A/D conversion back input DSP; after handling, DSP, finishes the control of switching value output module by CPLD.
Described dsp chip is the TMS320C67 chip.
Described CPLD chip is the ISPMACH4256V chip.
Described MCU chip is the PIC18F6722 chip.
Advantage and the good effect that the utlity model has are:
1, the high-end digital signal processing capability of employing TMS320C67 series is stronger, quick-break is faster, is easy to realize various algorithms, and the main control module volume is little, aboundresources, and performance is stronger.
2, adopt the modularized hardware design, module combinations is convenient, and function expansibility is strong, and is maintainable good.
3, the MCU chip cooperates keyboard, light-emitting diode display, the totally digitilized protection parameter of adjusting of importing, and the inquiry Monitoring Data is quick, and friendly interface helps the microminiaturization of digital synthesis protector.
Description of drawings
Fig. 1 is a block diagram of the present utility model
Embodiment
As shown in Figure 1, the utility model comprises data acquisition module, processor module, open into leaving module, communication module, power module and man-machine Switching Module, described power module is connected with man-machine Switching Module with described processor module respectively, it is characterized in that: described data acquisition module comprises the current/voltage input module, low-pass filter and A/D modular converter, described processor module comprises dsp chip, described opening into leaving module comprises the CPLD chip, photoelectric isolation module, switching input module and switching value output module, described communication module comprises RS422 and RS485 interface, described man-machine Switching Module comprises the MCU chip, press key input device and LCD display unit, described current/voltage input module links to each other with described low-pass filter, the output of described low-pass filter links to each other with the input of described A/D modular converter, the output of described A/D modular converter links to each other with described dsp chip, described dsp chip and the two-way connection of described CPLD chip, and described dsp chip is by RS422 interface and the two-way connection of described MCU chip, described CPLD chip links to each other with described switching value output module with described switching input module respectively by described photoelectric isolation module, described MCU chip and described press key input device and the two-way connection of described LCD display unit.
The course of work of this example: described current and voltage signals is after CT, PT conversion, through the low-pass filter input a/d converter, through A/D conversion back input DSP, DSP reads digital quantity after the AD conversion line data of going forward side by side and handles, with set point relatively, as satisfy operation condition, then by CPLD control output signal, the outlet of driving relay, man-machine exchange is then handled by MCU, and data exchange by standard RS422 interface and DSP.
More than an embodiment of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to be used to limit practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.
Claims (4)
1. protective relaying device based on DSP and CPLD; comprise data acquisition module; processor module; open into leaving module; communication module; power module and man-machine Switching Module; described power module is connected with man-machine Switching Module with described processor module respectively; it is characterized in that: described data acquisition module comprises the current/voltage input module; low-pass filter and A/D modular converter; described processor module comprises dsp chip; described opening into leaving module comprises the CPLD chip; photoelectric isolation module; switching input module and switching value output module; described communication module comprises RS422 and RS485 interface; described man-machine Switching Module comprises the MCU chip; press key input device and LCD display unit; described current/voltage input module links to each other with described low-pass filter; the output of described low-pass filter links to each other with the input of described A/D modular converter; the output of described A/D modular converter links to each other with described dsp chip; described dsp chip and the two-way connection of described CPLD chip; and described dsp chip is by RS422 interface and the two-way connection of described MCU chip; described CPLD chip links to each other with described switching value output module with described switching input module respectively by described photoelectric isolation module; described MCU chip and described press key input device and the two-way connection of described LCD display unit; the data that described current/voltage acquisition module collects are imported A/D converter through behind the low-pass filter; through A/D conversion back input DSP; after handling, DSP, finishes the control of switching value output module by CPLD.
2. the protective relaying device based on DSP and CPLD according to claim 1 is characterized in that: described dsp chip is the TMS320C67 chip.
3. the protective relaying device based on DSP and CPLD according to claim 1 is characterized in that: described CPLD chip is the ISPMACH4256V chip.
4. the protective relaying device based on DSP and CPLD according to claim 1 is characterized in that: described MCU chip is the PIC18F6722 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202576893U CN201726109U (en) | 2010-07-14 | 2010-07-14 | Relay protector based on Digital Signal Processor (DSP) and Complex Programmable Logic Device (CPLD) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202576893U CN201726109U (en) | 2010-07-14 | 2010-07-14 | Relay protector based on Digital Signal Processor (DSP) and Complex Programmable Logic Device (CPLD) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201726109U true CN201726109U (en) | 2011-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202576893U Expired - Fee Related CN201726109U (en) | 2010-07-14 | 2010-07-14 | Relay protector based on Digital Signal Processor (DSP) and Complex Programmable Logic Device (CPLD) |
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| CN (1) | CN201726109U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106527254A (en) * | 2015-09-11 | 2017-03-22 | 罗伯特·博世有限公司 | Integrated circuit |
-
2010
- 2010-07-14 CN CN2010202576893U patent/CN201726109U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106527254A (en) * | 2015-09-11 | 2017-03-22 | 罗伯特·博世有限公司 | Integrated circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20150714 |
|
| EXPY | Termination of patent right or utility model |