CN208782467U - A kind of route integrated protection and monitoring device - Google Patents
A kind of route integrated protection and monitoring device Download PDFInfo
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- CN208782467U CN208782467U CN201821644340.8U CN201821644340U CN208782467U CN 208782467 U CN208782467 U CN 208782467U CN 201821644340 U CN201821644340 U CN 201821644340U CN 208782467 U CN208782467 U CN 208782467U
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- module
- dsp chip
- monitoring device
- integrated protection
- route integrated
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Abstract
The utility model relates to electric protective equipment technical fields; in particular a kind of route integrated protection and monitoring device; including dsp chip, hysteresis loop comparator, switching input module and switching value output module; the hysteresis loop comparator input terminal is connected with isolated variable module; output end is connected to A/D conversion module; the dsp chip is connect with A/D conversion module; the switching input module and switching value output module are connected to dsp chip, and the dsp chip is also connected with communication module and memory module.The utility model; defencive function has the functions such as three-stage overcurrent protection, inverse-time overcurrent protection, automatic reclosing; and the high-acruracy survey of the parameters such as achievable voltage, electric current, power; the signal anti-interference ability of device is effectively increased considerably, realizes the functions such as frequency analysis and failure wave-recording；The complete route comprehensive protector of integrated protection and observing and controlling is provided for 35kV and the route of following level, branch.
Description
Technical field
The utility model relates to electric protective equipment technical field, specially a kind of route integrated protection and monitoring device.
Background technique
The direction of comprehensive automation of electric power system ceremony power network development, integrated protection and monitoring device needs are completed at the same time survey
The multiple functions such as amount, fault detection, protection, remote control are protected to realize route protection, measurement and control promptly and accurately to comprehensive
The hardware design of shield measure and control device proposes requirement；However, with the development of electric system, to the speed and data of protective device
Processing capacity and anti-interference ability propose increasingly higher demands, are completed at the same time protection and observing and controlling function in the prior art
Design method is all difficult to meet the requirements.
Utility model content
The purpose of this utility model is to provide a kind of route integrated protection and monitoring devices, to solve in above-mentioned background technique
The problem of proposition.The route integrated protection and monitoring device effectively increases considerably the signal anti-interference ability of device, avoids
Interference of the signal by working environment, has filtered out interference signal, realizes the functions such as frequency analysis and failure wave-recording, be 35kV and with
The route of lower grade, branch provide the complete route comprehensive protector of integrated protection and observing and controlling.
To achieve the above object, the utility model provides the following technical solutions:
A kind of route integrated protection and monitoring device, including dsp chip, hysteresis loop comparator, switching input module and open
Output module is measured in pass, and the hysteresis loop comparator input terminal is connected with isolated variable module, and output end is connected to A/D conversion module,
The dsp chip is connect with A/D conversion module, and the switching input module and switching value output module are connected to DSP core
Piece, the dsp chip are also connected with communication module and memory module.
Preferably, the isolated variable module uses the isolated dcdc converter of PG4951F, and input terminal is connected with electric current
Mutual inductor, voltage transformer, in which: the current transformer model uses ZDKTA38M, and voltage transformer model uses
LCTV3JCF。
Preferably, the hysteresis loop comparator is based on LM311 hysteresis comparison circuit.
Preferably, the A/D conversion module, switching input module and switching value output module pass through Phototube Coupling mould
Block is connect with dsp chip.
Preferably, the memory module includes eeprom memory and SRAM memory.
It preferably, further include the power module, reseting module and clock module being connect with dsp chip.
Preferably, the dsp chip is connected with human-machine interface module, which connects keyboard and display.
Preferably, the photoelectric isolation module includes photoelectrical coupler and relay, in which: the photoelectrical coupler is defeated
Enter end connection A/D conversion module, switching input module and switching value output module, output and passes through relay and DSP core
Piece connection.
Preferably, the dsp chip is TMS320LF2407A, and A/D conversion module uses 16 ADS8364 of SPI interface
Chip, communication module use CS8900A chip；The power module power voltage supply is direct current 5V, and reseting module is 3.3V power supply
CAT1832 chip, clock module use DS1744 type NAVRAM chip.
Preferably, the human-machine interface module is that SED1335 controls chip, and keyboard is 7 independent keys, and display uses
HSI2864 liquid crystal display.
Compared with prior art, the utility model has the beneficial effects that
By single dsp chip and its peripheral module, structure is simple, ensure that data-handling capacity again in processing speed
On be greatly improved, and defencive function have three-stage overcurrent protection, inverse-time overcurrent protection, automatic reclosing,
The functions such as acceleration, overload, low frequency load shedding afterwards, and the high-acruracy survey of the parameters such as achievable voltage, electric current, power, have
The signal anti-interference ability for increasing considerably to effect device, avoids interference of the signal by working environment, has filtered out interference signal,
Realize the functions such as frequency analysis and failure wave-recording；Integrated protection and observing and controlling are provided for 35kV and the route of following level, branch
Complete route comprehensive protector.
Detailed description of the invention
Fig. 1 is the utility model principle block diagram.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, the utility model provides a kind of technical solution:
A kind of route integrated protection and monitoring device, including dsp chip, hysteresis loop comparator, switching input module and open
Output module is measured in pass, and the hysteresis loop comparator input terminal is connected with isolated variable module, and output end is connected to A/D conversion module,
The dsp chip is connect with A/D conversion module, and the switching input module and switching value output module are connected to DSP core
Piece, the dsp chip are also connected with communication module and memory module.
Electric current, voltage signal are converted into the simulation to match with A/D conversion circuit letter by ZDKTA38M, LCTV3JCF
Number.A/D conversion module uses 16 ADS8364 chips of SPI interface, this is 16 AD conversion chips of a SPI interface, defeated
Entering voltage range is ± 10V, and the digital signal after A/D conversion can be directly fed at dsp chip by photoelectric isolation module
Reason.Signal after current transformer, voltage transformer conversion first passes around the isolated dcdc converter of PG4951F and carries out two
Secondary transformation be isolated, low-pass filtering etc. pre-processes, then using the hysteresis loop comparator progress based on LM311 hysteresis comparison circuit
Signal condition increases considerably the signal anti-interference ability of output using hysteresis loop comparator, avoids signal by working environment
Interference, filtered out interference signal.
To prevent external circuit to the interference of apparatus system, open into, output channel and to be isolated.In line failure
When or when irregular operating, protection supervisory equipment should complete the control to breaker by various output switch parameters, and starting is accused
Alert signal；The input of 12 way switch amounts, the output of 12 tunnels is arranged in the present apparatus, is all made of type photoelectric isolating input mode；On-off signal
Module is the input of 24 road AIO-211 switching value acquisition modules, and switching value output module is 24 road AIO-211 switching value acquisition modules
Defeated place, AIO-211 use 24V power supply power supply, control signal and enter logic, tripping plug-in unit after Phototube Coupling, through relay control
Control command is finally completed after system, in the present apparatus, external power supply and dsp chip motherboard power supply are completely separable, use simultaneously
Isolation between PSR5 photoelectrical coupler and relay the method realization device system combined and breaker.
It can realize that comprehensive automation needs with the real-time data communication of monitoring host computer to meet this protection supervisory equipment
It wants, is communicated using RS485, communication module uses CS8900A chip, extends Ethernet；Using DS1744 type NAVRAM chip
As real-time timepiece chip, clock is provided for system；In order to guarantee TMS320LF2407A chip can reliable and stable work, adopt
With CAT1832 chip, to improve dsp chip reseting performance.
The important parameters such as the protection definite value in this protection supervisory equipment need power down to save, therefore select
AT24C32EEPROM saves data.Since the present apparatus is in debugging process, program is run in RAM, therefore although DSP
There is the SARAM memory of 18k × 16 on chip, the RAM of 256k × 16 is still extended on circuit, in practice visual feelings
Condition choosing with or without.
In order to realize the setting of this protection supervisory equipment correlation Protection parameters, and the hair of realization manual divide-shut brake order
Out, 7 independent keys are provided with, and directly adopt the I/O mouth of chip as input.Display circuit has selected integrated manipulator
HSI2864 liquid crystal display realizes the display of order and data, can control HSI2864 liquid crystal display content by key
Display, can also be set by protected mode of the key to apparatus system.
The utility model, by single dsp chip and its peripheral module, structure is simple, ensure that data-handling capacity
It is all greatly improved in processing speed again, and defencive function has three-stage overcurrent protection, inverse-time overcurrent to protect
The functions such as shield, automatic reclosing, rear acceleration, overload, low frequency load shedding, and the parameters such as achievable voltage, electric current, power
High-acruracy survey effectively increases considerably the signal anti-interference ability of device, avoids interference of the signal by working environment, filter
In addition to interference signal, the functions such as frequency analysis and failure wave-recording are realized；Synthesis is provided for 35kV and the route of following level, branch
The complete route comprehensive protector of protection and observing and controlling.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (10)
1. a kind of route integrated protection and monitoring device, including dsp chip, hysteresis loop comparator, switching input module and switch
Measure output module, it is characterised in that: the hysteresis loop comparator input terminal is connected with isolated variable module, and output end is connected to A/D
Conversion module, the dsp chip are connect with A/D conversion module, and the switching input module and switching value output module connect
It is connected to dsp chip, the dsp chip is also connected with communication module and memory module.
2. a kind of route integrated protection and monitoring device according to claim 1, it is characterised in that: the isolated variable module
Using the isolated dcdc converter of PG4951F, input terminal is connected with current transformer, voltage transformer, in which: the electric current
Mutual inductor model uses ZDKTA38M, and voltage transformer model uses LCTV3JCF.
3. a kind of route integrated protection and monitoring device according to claim 1, it is characterised in that: the hysteresis loop comparator base
In LM311 hysteresis comparison circuit.
4. a kind of route integrated protection and monitoring device according to claim 1, it is characterised in that: the A/D conversion module,
Switching input module and switching value output module are connect by photoelectric isolation module with dsp chip.
5. a kind of route integrated protection and monitoring device according to claim 1, it is characterised in that: the memory module includes
Eeprom memory and SRAM memory.
6. a kind of route integrated protection and monitoring device described in any one of -5 according to claim 1, it is characterised in that: also wrap
Include the power module, reseting module and clock module connecting with dsp chip.
7. a kind of route integrated protection and monitoring device according to claim 6, it is characterised in that: the dsp chip connection
There is human-machine interface module, which connects keyboard and display.
8. a kind of route integrated protection and monitoring device according to claim 4, it is characterised in that: the photoelectric isolation module
Including photoelectrical coupler and relay, in which: the photoelectrical coupler input terminal connects A/D conversion module, On-off signal
Module and switching value output module, output are connect by relay with dsp chip.
9. a kind of route integrated protection and monitoring device according to claim 6, it is characterised in that: the dsp chip is
TMS320LF2407A, A/D conversion module use 16 ADS8364 chips of SPI interface, and communication module uses CS8900A core
Piece；The power module power voltage supply is direct current 5V, and reseting module is the CAT1832 chip of 3.3V power supply, and clock module uses
DS1744 type NAVRAM chip.
10. a kind of route integrated protection and monitoring device according to claim 7, it is characterised in that: the human-machine interface mouth mold
Block is that SED1335 controls chip, and keyboard is 7 independent keys, and display uses HSI2864 liquid crystal display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821644340.8U CN208782467U (en) | 2018-10-10 | 2018-10-10 | A kind of route integrated protection and monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821644340.8U CN208782467U (en) | 2018-10-10 | 2018-10-10 | A kind of route integrated protection and monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208782467U true CN208782467U (en) | 2019-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821644340.8U Expired - Fee Related CN208782467U (en) | 2018-10-10 | 2018-10-10 | A kind of route integrated protection and monitoring device |
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| CN (1) | CN208782467U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110535243A (en) * | 2019-09-26 | 2019-12-03 | 浙江涵普电力科技有限公司 | A kind of intelligent comprehensive protection supervisory equipment |
| CN110932224A (en) * | 2019-12-16 | 2020-03-27 | 安徽博洽多闻智能电网科技有限公司 | Integrated microcomputer comprehensive protection measurement and control device with high interference resistance |
-
2018
- 2018-10-10 CN CN201821644340.8U patent/CN208782467U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110535243A (en) * | 2019-09-26 | 2019-12-03 | 浙江涵普电力科技有限公司 | A kind of intelligent comprehensive protection supervisory equipment |
| CN110932224A (en) * | 2019-12-16 | 2020-03-27 | 安徽博洽多闻智能电网科技有限公司 | Integrated microcomputer comprehensive protection measurement and control device with high interference resistance |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190423 Termination date: 20211010 |