CN203326548U - Secondary network relay protection device based on digital signal processor - Google Patents
Secondary network relay protection device based on digital signal processor Download PDFInfo
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- CN203326548U CN203326548U CN2013203883093U CN201320388309U CN203326548U CN 203326548 U CN203326548 U CN 203326548U CN 2013203883093 U CN2013203883093 U CN 2013203883093U CN 201320388309 U CN201320388309 U CN 201320388309U CN 203326548 U CN203326548 U CN 203326548U
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Abstract
The utility model relates to the electric power equipment technology field and especially relates to a secondary network relay protection device based on a digital signal processor. The device of the utility model comprises a signal acquisition module, an A/D conversion circuit, a DSP core processor, an output module and a peripheral module. The signal acquisition module is connected with a plurality of equipment and is connected to the DSP core processor through the A/D conversion circuit. The DSP core processor is connected with the output module and the peripheral module. The peripheral module comprises a communication module, a storage module and man-machine interaction equipment. The DSP core processor is connected with a switching value input module through a photoelectric isolating circuit. The structure of the device of the utility model is designed reasonably and an idea is advanced. The DSP core processor is used to integrate a plurality of components. Acquisition precision is high and a bus speed is fast. An anti-interference capability is strong. The device is suitable for relay protection of an electric power secondary network. Operation is stable. The device is safe and reliable.
Description
Technical field
The utility model relates to electrical equipment technical field, especially the secondary network protective relaying device based on digital signal processor.
Background technology
The operation of power system safety and stability is to national economy, people's lives and even social stability all have very important meaning, but due to natural environment, the factor of the aspects such as operation and maintenance, the electric power system especially various elements of secondary network system is in operation and can not keeps normal operating conditions always, development along with computer technology, calculate and have higher requirement for the protection definite value of secondary network conversion, how to protect the accurate and reliability service of relaying protection, become problem in the urgent need to address in the electric power transfer process, traditional CAN communication can not meet the requirement of digital protection, poor anti jamming capability, the collection result susceptible to, acquisition precision is not ideal enough, need to innovate improvement.
The utility model content
The purpose of this utility model is to provide the protective relaying device of the secondary network based on digital signal processor in order to overcome above-mentioned technical disadvantages.
The technical scheme that the utility model technical solution problem adopts is: the secondary network protective relaying device based on digital signal processor; comprise signal acquisition module, A/D change-over circuit, DSP core processor, output module and peripheral module; described signal acquisition module connects multiple devices; and connect the DSP core processor through the A/D change-over circuit; the DSP core processor connects output module and peripheral module; described peripheral module comprises communication module, memory module and human-computer interaction device, and the DSP core processor is also by photoelectric isolating circuit connecting valve amount input module.
Described DSP core processor adopts TMS320LF2407DSP as control core, described signal acquisition module adopts Hall type voltage sensor and Hall type current sensor, described communication module adopts the Modbus communication protocol of industrial standard, described human-computer interaction device adopts TFT display screen and universal keyboard loader, and described memory module adopts eeprom memory.
Described DSP core processor and photoelectric isolating circuit are connected to the one-way data transmission channel, with communication module, memory module, human-computer interaction device, all are connected to double-channel interaction data transmission channel.
The beneficial effect that the utility model has is: the utility model reasonable in design, and theory advanced person, adopt the DSP core processor to integrate a plurality of elements; acquisition precision is high, and bus speed is fast, and antijamming capability is strong; be applicable to the relaying protection of Power Secondary net, stable, safe and reliable.
The accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with 1 pair of the utility model of accompanying drawing, be described below.
As shown in Figure 1, the utility model comprises signal acquisition module 1, A/D change-over circuit 2, DSP core processor 3, output module 4 and peripheral module, described signal acquisition module 1 connects multiple devices 5, and connect DSP core processor 3 through A/D change-over circuit 2, DSP core processor 3 connects output module 4 and peripheral module, described peripheral module comprises communication module 6, memory module 7 and human-computer interaction device 9, and DSP core processor 3 is also by photoelectric isolating circuit 10 connecting valve amount input modules 7.
Described DSP core processor 3 adopts TMS320LF2407DSP as control core, described signal acquisition module 1 adopts Hall type voltage sensor and Hall type current sensor, described communication module 6 adopts the Modbus communication protocol of industrial standard, described human-computer interaction device 9 adopts TFT display screen and universal keyboard loader, and described memory module 7 adopts eeprom memory.
Described DSP core processor 3 is connected to the one-way data transmission channel with photoelectric isolating circuit 10, with communication module 6, memory module 7, human-computer interaction device 9, all is connected to double-channel interaction data transmission channel.
In running, A/D change-over circuit 2 converts the electric current of collection and voltage signal to can be by the digital signal of computer acquisition, transfer to DSP core processor 3, data in 6 pairs of transmission of communication module are carried out verification, human-computer interaction device 9 is for showing the data such as electric power system real-time voltage current value, equipment running status and power, input instruction for operating personnel, memory module 7 storages are for checking setting value and the control word of standard simultaneously.
Claims (3)
1. the secondary network protective relaying device based on digital signal processor; comprise signal acquisition module, A/D change-over circuit, DSP core processor, output module and peripheral module; it is characterized in that: described signal acquisition module connects multiple devices; and connect the DSP core processor through the A/D change-over circuit; the DSP core processor connects output module and peripheral module; described peripheral module comprises communication module, memory module and human-computer interaction device, and the DSP core processor is also by photoelectric isolating circuit connecting valve amount input module.
2. the secondary network protective relaying device based on digital signal processor according to claim 1; it is characterized in that: described DSP core processor adopts TMS320LF2407DSP as control core; described signal acquisition module adopts Hall type voltage sensor and Hall type current sensor; described communication module adopts the Modbus communication protocol of industrial standard; described human-computer interaction device adopts TFT display screen and universal keyboard loader, and described memory module adopts eeprom memory.
3. the secondary network protective relaying device based on digital signal processor according to claim 1; it is characterized in that: described DSP core processor and photoelectric isolating circuit are connected to the one-way data transmission channel, with communication module, memory module, human-computer interaction device, all are connected to double-channel interaction data transmission channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203883093U CN203326548U (en) | 2013-07-02 | 2013-07-02 | Secondary network relay protection device based on digital signal processor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203883093U CN203326548U (en) | 2013-07-02 | 2013-07-02 | Secondary network relay protection device based on digital signal processor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203326548U true CN203326548U (en) | 2013-12-04 |
Family
ID=49665842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203883093U Expired - Fee Related CN203326548U (en) | 2013-07-02 | 2013-07-02 | Secondary network relay protection device based on digital signal processor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203326548U (en) |
-
2013
- 2013-07-02 CN CN2013203883093U patent/CN203326548U/en not_active Expired - Fee Related
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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: 20131204 Termination date: 20140702 |
|
| EXPY | Termination of patent right or utility model |