CN202940575U - Digital line protection device - Google Patents
Digital line protection device Download PDFInfo
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- CN202940575U CN202940575U CN 201220641521 CN201220641521U CN202940575U CN 202940575 U CN202940575 U CN 202940575U CN 201220641521 CN201220641521 CN 201220641521 CN 201220641521 U CN201220641521 U CN 201220641521U CN 202940575 U CN202940575 U CN 202940575U
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Abstract
The utility model discloses a digital line protection device which is characterized by comprising a power supply module, an alternating-current sampling module, a CPU module and a relay module, wherein the power supply module is respectively connected with the alternating-current sampling module and the relay module, an output end of the alternating-current sampling module is connected with an input end of the CPU module, and the CPU module and the relay module are connected in a bidirectional mode. The digital line protection device has the advantages of high degree of integration, high operation speed, high precision, abundant communication interfaces and the like.
Description
Technical field
The utility model relates to the relaying protection field in electric power system, particularly a kind of digital line protection device.
Background technology
Along with the develop rapidly of China's electric power system, it has also constantly proposed Secretary to relaying protection.Protective relaying device commonly used is mainly the computer line protection take CPU more than 32 as the basis at present, and it has been difficult to satisfy the requirement of modern power systems at aspects such as arithmetic speed, counting accuracy and network communication functions.
The Chinese patent application application number is: 02131716.X discloses a kind of intelligent comprehensive digital relay, mainly comprises voltage current transformer, circuit linearity insulating circuit, relay output circuit, digital input circuit, A/D converter, photoelectric isolating circuit, digital signal processor, master microprocessor, man-machine interface display module and ethernet controller.But in this patent application, disclosed device integration is not high, make apparatus structure comparatively complicated.
The utility model content
The technical problems to be solved in the utility model is: overcome that the integrated level that existing protective relaying device exists is not high, arithmetic speed and precision is low and with the technological deficiency such as external equipment communication inconvenience.
The technical scheme that its technical problem that solves the utility model adopts is:
Propose a kind of digital line protection device, described line protective devices are comprised of power module, AC sampling module, CPU module and relay module; Power module is connected with relay module with AC sampling module respectively, and the output of AC sampling module is connected with the input of CPU module, and the CPU module is connected with relay module is two-way.
As preferred version, described CPU module, comprise dsp chip, leave driver module, open light inlet every driver module, communication module, A/D converter, storage control, LCD MODULE and low-pass filter, the input signal of described AC sampling module sends successively low-pass filter, A/D converter, dsp chip to and leaves driver module, the described driver module of leaving outputs signal to described relay module, and described dsp chip is connected with LCD MODULE with described communication module, storage control respectively and is connected.
As preferred version, described LCD MODULE comprises control chip and LCDs.
As preferred version, the output signal of described relay module is sent to the described light inlet of opening successively every driver module and described dsp chip.
As preferred version, described power module adopts 3 road power supplys.
As preferred version, described AC sampling module is comprised of current transformer and voltage transformer.
As preferred version, described communication module comprises 1 RS485 interface, 2 Fast Ethernet interfaces.
As preferred version, described communication module also configurable 1 GPS to time input and 1 CAN communication interface.
The beneficial effects of the utility model are: the CPU module that the utility model adopts not only has very high integrated level, very high operating frequency and computational speed, but also have larger addressing space, abundant command system and input/output port, the communication module of this CPU module integration possesses abundant outside port and also can make this device carry out communication with the external world very easily in addition, is enough to tackle the various demands of modern 110Kv and following electric power system.
Description of drawings
Fig. 1 is the utility model line construction block diagram.
Wherein: 1-relay module, 2-power module, 3-CPU module, 31-DSP chip, 32-leaves driver module, and 33-opens light inlet every driver module, 34-communication module, 35-A/D converter, the 36-storage control, 37-LCD MODULE, 38-low-pass filter, 4-AC sampling module.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
With reference to accompanying drawing 1, digital line protection device described in the utility model is comprised of power module 2, AC sampling module 4, CPU module 3 and relay module 1;
Described CPU module 3, comprise dsp chip 31, leave driver module 32, open light inlet every driver module 33, communication module 34, A/D converter 35, storage control 36, LCD MODULE 37 and low-pass filter 38, described dsp chip 31 is connected two-way the connection with LCD MODULE with described communication module 34, storage control 36 respectively.
Described power module 2 adopts XRA05/110D05-24HG type 3 road power supplys of home brands Shanghai electronic technology limited company of rich surge section.
WGSLO type current transformer and WGSYO type voltage transformer that described AC sampling module 4 adopts Wuhan Hua Yi Electronics Co., Ltd. to produce.
Described relay module 1 adopts the DK1a-24V type relay of MAT.
The TMS320F28335 type dsp chip that described dsp chip 31 adopts American TI Company to produce.
Describedly leave the TLP181 cake core that driver module 32 adopts Toshiba Corp to produce.
The KSZ8842 Fast Ethernet communication chip that described communication module 34 adopts U.S. Micrel company to produce.
The AD7656 chip that described A/D converter 35 adopts U.S. ADI company to produce.
The IC622LV51216 chip that described storage control 36 adopts Taiwan ICSI company to produce.
Described LCD MODULE 37 comprises the dsPIC33FJ64GP206 control chip that adopts the production of the U.S. little core company and the LM320240C LCDs that adopts Beijing Electronics Co., Ltd. of Hua Tianxin section to produce.
Described low-pass filter 38 adopts the EMI/EMC low pass filter that in Beijing, the space person of outstanding talent produces.
During work, the input signal of described AC sampling module 4 sends successively low-pass filter 38, A/D converter 35, dsp chip 31 to and leaves driver module 32, the described driver module 32 of leaving outputs signal to described relay module 1, and the output signal of described relay module 1 is sent to the described light inlet of opening successively every driver module 33 and described dsp chip 31.
DSP is the DSP chip TMS320F28335 of U.S. Texas Instruments company, DSP has two cards, be dsp board and V40 plate, an intelligent template in dsp board formula APCI industry control machine, it can the complete independently data acquisition and processing, the V40 plate provides the development platform of PC to the user, operating system KTDOS3K.0 and MSDOS3.0 are fully compatible, thereby the user uses the high-level language developing application under the DOS environment again, but greatly improves development efficiency.Dsp board and V40 plate can propose to interrupt application mutually, can receive the GPS pps pulse per second signal, start regularly and division function by interrupt mode.Digital line protection device adopts the AT96 bus structures, the various working powers of power supply module generator, and direct current or exchange 220 inputs behind the anti-interference filtration loop, utilizes inverter output ± 5V, ± 12V, ± 24V.
Principal character and the innovative point of this programme only described in above demonstration.Those skilled in the art should understand, and this programme is not restricted to the described embodiments.Under the prerequisite that does not break away from the innovation point and protection range, this programme also has various variations, and these changes and improvements all will fall in the claimed scope of this programme.The claimed scope of this programme is limited by appending claims and equivalent thereof.
Claims (8)
1. digital line protection device, it is characterized in that: described line protective devices are comprised of power module, AC sampling module, CPU module and relay module; Power module is connected with relay module with AC sampling module respectively, and the output of AC sampling module is connected with the input of CPU module, and the CPU module is connected with relay module is two-way.
2. line protective devices as claimed in claim 1, it is characterized in that: described CPU module, comprise dsp chip, leave driver module, open light inlet every driver module, communication module, A/D converter, storage control, LCD MODULE and low-pass filter, the input signal of described AC sampling module sends low-pass filter successively to, A/D converter, dsp chip and leave driver module, the described driver module of leaving outputs signal to described relay module, described dsp chip respectively with described communication module, storage control is connected connection with LCD MODULE.
3. line protective devices as claimed in claim 2, it is characterized in that: described communication module comprises 1 RS485 interface, 2 Fast Ethernet interfaces.
4. line protective devices as claimed in claim 2 is characterized in that: described communication module also configurable 1 GPS to the time input and 1 CAN communication interface.
5. line protective devices as claimed in claim 2, it is characterized in that: described LCD MODULE comprises control chip and LCDs.
6. line protective devices as claimed in claim 2, it is characterized in that: the output signal of described relay module is sent to the described light inlet of opening successively every driver module and described dsp chip.
7. line protective devices as claimed in claim 1, is characterized in that: described power module employing 3 road power supplys.
8. line protective devices as claimed in claim 1, it is characterized in that: described AC sampling module is comprised of current transformer and voltage transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220641521 CN202940575U (en) | 2012-11-28 | 2012-11-28 | Digital line protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220641521 CN202940575U (en) | 2012-11-28 | 2012-11-28 | Digital line protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202940575U true CN202940575U (en) | 2013-05-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220641521 Expired - Fee Related CN202940575U (en) | 2012-11-28 | 2012-11-28 | Digital line protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202940575U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105022312A (en) * | 2014-04-29 | 2015-11-04 | 青岛海尔洗衣机有限公司 | Household electrical appliance metering and protective device, and washing machine with the device |
-
2012
- 2012-11-28 CN CN 201220641521 patent/CN202940575U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105022312A (en) * | 2014-04-29 | 2015-11-04 | 青岛海尔洗衣机有限公司 | Household electrical appliance metering and protective device, and washing machine with the device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI SMINR AUTOMATION CO., LTD. Free format text: FORMER NAME: SHANGHAI SMINR NEW ELECTRIC AUTOMATION CONTROL CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 201600, room 5, building 269, 3333 Yushu Road, Yongfeng street, Shanghai, Songjiang District Patentee after: Shanghai Ming Nari Automation Co. Ltd. Address before: 201600, room 5, building 269, 3333 Yushu Road, Yongfeng street, Shanghai, Songjiang District Patentee before: Shanghai SMINR New Electric Automation Control Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20151128 |