CN104184120A - High-performance transformer protection device - Google Patents
High-performance transformer protection device Download PDFInfo
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- CN104184120A CN104184120A CN201410459422.5A CN201410459422A CN104184120A CN 104184120 A CN104184120 A CN 104184120A CN 201410459422 A CN201410459422 A CN 201410459422A CN 104184120 A CN104184120 A CN 104184120A
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Abstract
The invention belongs to the technical field of transformer protection devices and provides a high-performance transformer protection device which is high in reliability and suitable for digital substations. According to the technical scheme, the high-performance transformer protection device comprises a main control unit, a signal acquisition unit, an input and output unit, a telemetry control unit, a power management unit and a human-computer interface unit, wherein the main control unit is connected with the signal acquisition unit, the input and output unit, the telemetry control unit, the power management unit and the human-computer interface unit; the main control unit comprises a first CPU module and a second CPU module; the first CPU module and a second CPU module are respectively connected with the signal acquisition unit, the input and output unit, the telemetry control unit, the power management unit and the human-computer interface unit. The high-performance transformer protection device is applicable to a power system.
Description
Technical field
The invention belongs to the technical field of protection equipment for transformer.
Background technology
In current power application, the safe and stable operation of electric power system is the basic prerequisite that power equipment uses, it is the basic guarantee that ensures the good development of using electricity system, power transformer becomes the visual plant of distribution link as electric power system, be widely used in the transformer station of different electric pressures, its fault and defect have obvious and important impact to the reliable and stable operation of whole electric power system, therefore, the protection of power transformer are just seemed to particularly important; Meanwhile, along with the development of power technology, comprehensive automation of electric power system has become the inexorable trend of power network development, and the application of the proposition of communication of digitalization transformer substation standard and electric mutual inductor standard, has also proposed new requirement to power trans-former protection device.
Traditional power trans-former protection device performance is lower, carry out calculation of fault and carry out starting protection program by gathering the electric current and voltage analog quantity of primary equipment and switching value, lack the sampling analysis of the communication signal to digitizers such as electric mutual inductors, cannot meet the power trans-former protection requirement of Contemporary Digital transformer station; And protective device hardware fault, the problem such as be disturbed all likely affect the precision of sampled data, cause fault misjudgment, defence program malfunction or tripping, protective device reliability is low brings hidden danger to safe operation of power system.
Summary of the invention
The present invention overcomes the deficiency that prior art exists, and technical problem to be solved is: provide a kind of reliability higher, the high-performance protection equipment for transformer that is applicable to digital transformer substation.
In order to solve the problems of the technologies described above; the technical solution used in the present invention is: high-performance protection equipment for transformer; comprise: main control unit, signal gathering unit, input and output unit, remote measurement control unit, Power Management Unit and human and machine interface unit, described main control unit is connected with human and machine interface unit with described signal gathering unit, input and output unit, remote measurement control unit, Power Management Unit.
Described main control unit comprises a CPU module and the 2nd CPU module, and a described CPU module is all connected with human and machine interface unit with described signal gathering unit, input and output unit, remote measurement control unit, Power Management Unit with the 2nd CPU module; Described signal gathering unit comprises: non-optical-fibre communications signal acquisition module and optical-fibre communications signal acquisition module, and described non-optical-fibre communications signal acquisition module is all connected with described main control unit with optical-fibre communications signal acquisition module; Described non-optical-fibre communications signal acquisition module comprises: AC current collecting module, AC voltage sampling module and direct current signal acquisition module; Described input and output unit comprises: non-optical-fibre communications input and output module and optical-fibre communications input and output module, described non-optical-fibre communications input and output module is all connected with described main control unit with optical-fibre communications input and output module, and described optical-fibre communications input and output module is also connected with described remote measurement control unit; Described non-optical-fibre communications input and output module comprises: switching input module and control signal output module; Described main control unit is connected with described human and machine interface unit with dispatching desk by communication unit; Described communication unit adopts HDLC agreement to carry out transfer of data; Described human and machine interface unit comprises: LCDs, operation keyboard and signal lamp.
The present invention compared with prior art has following beneficial effect:
1, protection equipment for transformer in the present invention, mainly comprise main control unit, signal gathering unit, input and output unit, remote measurement control unit, Power Management Unit and human and machine interface unit, the various alternating current-direct current signals of signal gathering unit Real-time Collection transformer pass to main control unit, the input and output unit on the one hand various switching values of Real-time Collection transformer passes to main control chip, receive on the other hand the control signal that main control chip transmits and transmit corresponding control module, staff can carry out long-haul telemetry control by remote measurement control unit, can Real Time Observation device running status and conveniently operate by human and machine interface unit, reliability is higher, be applicable to digital transformer substation.
2, the main control unit in the present invention comprises a CPU module and the 2nd CPU module; adopt two CPU concurrent working patterns; outlet loop is carried out two CPU interlockings; realize two AD samplings, two CPU parallel logic judgement processing; when two CPU modules are moved simultaneously; just starting protection program, has improved the reliability of protection equipment for transformer greatly.
3, the protection equipment for transformer in the present invention; support IEC 61850 standards comprehensively; meet the several data access requirement of digital transformer substation power trans-former protection; both met the non-optical-fibre communications signal access such as electric current and voltage analog quantity, switching value of traditional instrument transformer, and also can be the digital devices such as electric mutual inductor simultaneously the access of optical-fibre communications signal is provided.
4, the present invention is provided with human-computer interaction interface, can show at any time the operation correlatives such as each side electric current, voltage, is convenient to user's debugging; Each defencive function modularized design, realizes the flexible configuration of resource; Main control unit, by adopting the communication unit of HDLC agreement and dispatching desk and human-computer interaction interface to carry out data transmission, has ensured the reliability transmission of system data.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention will be further described in detail;
Fig. 1 is structural representation of the present invention;
In figure: 1 is main control unit, 2 is signal gathering unit, 3 is input and output unit, 4 is remote measurement control unit, 5 is Power Management Unit, 6 is human and machine interface unit, 7 is a CPU module, 8 is the 2nd CPU module, 9 is non-optical-fibre communications signal acquisition module, 10 is optical-fibre communications signal acquisition module, 11 is AC current collecting module, 12 is AC voltage sampling module, 13 is direct current signal acquisition module, 14 is non-optical-fibre communications input and output module, 15 is optical-fibre communications input and output module, 16 is switching input module, 17 is control signal output module, 18 is communication unit, 19 is dispatching desk, 20 is LCDs, 21 is operation keyboard, 22 is signal lamp.
Embodiment
As shown in Figure 1, high-performance protection equipment for transformer comprises: main control unit 1, signal gathering unit 2, input and output unit 3, remote measurement control unit 4, Power Management Unit 5 and human and machine interface unit 6, described main control unit 1 and described signal gathering unit 2, input and output unit 3, remote measurement control unit 4, Power Management Unit 5 is connected with human and machine interface unit 6, in the present embodiment, described main control unit 1 comprises a CPU module 7 and the 2nd CPU module 8, a described CPU module 7 and the 2nd CPU module 8 all with described signal gathering unit 2, input and output unit 3, remote measurement control unit 4, Power Management Unit 5 is connected with human and machine interface unit 6, particularly, described main control unit 1 can be connected with described human and machine interface unit 6 with dispatching desk 19 by communication unit 18, described communication unit 18 can adopt HDLC agreement to carry out transfer of data, described human and machine interface unit 6 can comprise LCDs 20, operation keyboard 21 and signal lamp 22.
Signal gathering unit 2 in the present embodiment can comprise: non-optical-fibre communications signal acquisition module 9 and optical-fibre communications signal acquisition module 10, described non-optical-fibre communications signal acquisition module 9 is all connected with described main control unit 1 with optical-fibre communications signal acquisition module 10.Described non-optical-fibre communications signal acquisition module 9 comprises: AC current collecting module 11, AC voltage sampling module 12 and direct current signal acquisition module 13; Concrete, in the time that signal access is traditional instrument transformer, signal gathering unit 2 is converted to small voltage signal by the electric current of collection, voltage and after low pass filter, is transferred to respectively a CPU module 7 and the 2nd CPU module 8; In the time that signal access accesses for electronic mutual inductor, signal acquisition module 2 is transmitted the sampled data of coming after data merge preliminary treatment by FT3 or IEC 61850, is transferred to a CPU module 7 and the 2nd CPU module 8 of main control unit 1; The one CPU module 7 and the 2nd CPU module 8 obtain after the signal of sampling, carry out digital filtering and algorithm computing, send the orders such as tripping operation, signal when meeting the backward outlet loop of protection operation condition.
In the present embodiment, input and output unit 3 comprises: non-optical-fibre communications input and output module 14 and optical-fibre communications input and output module 15, described non-optical-fibre communications input and output module 14 is all connected with described main control unit 1 with optical-fibre communications input and output module 15, and described optical-fibre communications input and output module 15 is also connected with described remote measurement control unit 4.Described non-optical-fibre communications input and output module 14 comprises: switching input module 16 and control signal output module 17.Concrete, remote measurement control unit 4 can gather by optical-fibre communications input and output module 15 data such as electric current, voltage, meritorious, idle, power factor, frequency.
High-performance protection equipment for transformer in the present invention solved traditional transformer protective device reliability low, can not carry out communication signal collection analysis to digitizers such as electric mutual inductors, not be suitable for the problem of digital transformer substation voltage device protection, there is outstanding substantive distinguishing features and significant progressive; By reference to the accompanying drawings embodiments of the invention are explained in detail above, but the present invention is not limited to above-described embodiment, in the ken possessing those of ordinary skill in the art, can also under the prerequisite that does not depart from aim of the present invention, makes various variations.
Claims (9)
1. high-performance protection equipment for transformer; it is characterized in that: comprising: main control unit (1), signal gathering unit (2), input and output unit (3), remote measurement control unit (4), Power Management Unit (5) and human and machine interface unit (6), described main control unit (1) is connected with described signal gathering unit (2), input and output unit (3), remote measurement control unit (4), Power Management Unit (5) and human and machine interface unit (6).
2. high-performance protection equipment for transformer according to claim 1; it is characterized in that: described main control unit (1) comprises a CPU module (7) and the 2nd CPU module (8), a described CPU module (7) is all connected with described signal gathering unit (2), input and output unit (3), remote measurement control unit (4), Power Management Unit (5) and human and machine interface unit (6) with the 2nd CPU module (8).
3. high-performance protection equipment for transformer according to claim 1 and 2; it is characterized in that: described signal gathering unit (2) comprising: non-optical-fibre communications signal acquisition module (9) and optical-fibre communications signal acquisition module (10), described non-optical-fibre communications signal acquisition module (9) is all connected with described main control unit (1) with optical-fibre communications signal acquisition module (10).
4. high-performance protection equipment for transformer according to claim 3, is characterized in that: described non-optical-fibre communications signal acquisition module (9) comprising: AC current collecting module (11), AC voltage sampling module (12) and direct current signal acquisition module (13).
5. high-performance protection equipment for transformer according to claim 1 and 2; it is characterized in that: described input and output unit (3) comprising: non-optical-fibre communications input and output module (14) and optical-fibre communications input and output module (15); described non-optical-fibre communications input and output module (14) is all connected with described main control unit (1) with optical-fibre communications input and output module (15), and described optical-fibre communications input and output module (15) is also connected with described remote measurement control unit (4).
6. high-performance protection equipment for transformer according to claim 5, is characterized in that: described non-optical-fibre communications input and output module (14) comprising: switching input module (16) and control signal output module (17).
7. high-performance protection equipment for transformer according to claim 1 and 2, is characterized in that: described main control unit (1) is connected with described human and machine interface unit (6) with dispatching desk (19) by communication unit (18).
8. high-performance protection equipment for transformer according to claim 7, is characterized in that: described communication unit (18) adopts HDLC agreement to carry out transfer of data.
9. high-performance protection equipment for transformer according to claim 1 and 2, is characterized in that: described human and machine interface unit (6) comprising: LCDs (20), operation keyboard (21) and signal lamp (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410459422.5A CN104184120A (en) | 2014-09-11 | 2014-09-11 | High-performance transformer protection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410459422.5A CN104184120A (en) | 2014-09-11 | 2014-09-11 | High-performance transformer protection device |
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| CN104184120A true CN104184120A (en) | 2014-12-03 |
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| CN201410459422.5A Pending CN104184120A (en) | 2014-09-11 | 2014-09-11 | High-performance transformer protection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017101238A1 (en) * | 2015-12-16 | 2017-06-22 | 南京南瑞继保电气有限公司 | Apparatus and method for ensuring reliability of protection trip of intelligent substation |
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| CN2729981Y (en) * | 2004-08-20 | 2005-09-28 | 上海久创电气自动化设备有限公司 | Digital comprehensive protector |
| CN201266218Y (en) * | 2008-09-24 | 2009-07-01 | 宁波三星电气股份有限公司 | Terminal device for monitoring and metering distribution transformer |
| CN101420116A (en) * | 2008-12-04 | 2009-04-29 | 临安亿安电子有限公司 | Intelligent integrated electricity leakage protection device |
| CN201466694U (en) * | 2009-05-22 | 2010-05-12 | 天津港保税区益诚电力设备有限公司 | Micro-relay protection automation measuring and control device based on composite structure of DSP and MCU |
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| CN201533197U (en) * | 2009-11-23 | 2010-07-21 | 西安科技大学 | Transformer substation relay protective device based on OMAP platform |
| CN201667561U (en) * | 2010-07-16 | 2010-12-08 | 重庆迅驰电气有限公司 | Backup protection monitor device of a power system transformer |
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| WO2017101238A1 (en) * | 2015-12-16 | 2017-06-22 | 南京南瑞继保电气有限公司 | Apparatus and method for ensuring reliability of protection trip of intelligent substation |
| US10637287B2 (en) | 2015-12-16 | 2020-04-28 | Nr Electric Co., Ltd | Apparatus and method for ensuring reliability of trip protection of intelligent substation |
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Application publication date: 20141203 |