CN103217192A - Intelligent assembly - Google Patents

Intelligent assembly Download PDF

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Publication number
CN103217192A
CN103217192A CN2013101000663A CN201310100066A CN103217192A CN 103217192 A CN103217192 A CN 103217192A CN 2013101000663 A CN2013101000663 A CN 2013101000663A CN 201310100066 A CN201310100066 A CN 201310100066A CN 103217192 A CN103217192 A CN 103217192A
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CN
China
Prior art keywords
ied
sub
intelligent assembly
signal
main
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2013101000663A
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Chinese (zh)
Inventor
张伟
李洁
周静
鞠荏
吴以岷
朱海梅
刘岩
孙伟华
顾东壕
陈耀平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Shanghai Municipal Electric Power Co
Original Assignee
State Grid Corp of China SGCC
Shanghai Municipal Electric Power Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by State Grid Corp of China SGCC, Shanghai Municipal Electric Power Co filed Critical State Grid Corp of China SGCC
Priority to CN2013101000663A priority Critical patent/CN103217192A/en
Publication of CN103217192A publication Critical patent/CN103217192A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an intelligent assembly, which is externally connected with a host computer and electric equipment and comprises a main IED (intelligent electronic device) and a plurality of sub IEDs connected with the main IED, wherein each IED comprises a sensor, a signal preprocessing circuit, a single chip microcomputer, a power supply module and a memory, the sensors, the signal preprocessing circuits, the single chip microcomputers and the memories are sequentially connected, the power supply modules are respectively connected with the signal preprocessing circuits and the single chip microcomputers, the single chip microcomputers are connected with the main IED, the main IED is connected with the host computer, and each digital signal from each sub IED is received for carrying out primary processing, and in addition, the processed digital signals are transmitted to the host computer. The intelligent assembly has the advantages that all sub IEDs are mutually independent, the problem that all intelligent assembly functions are influenced by the failure of one sub IED can be avoided, users can conveniently select the proper integration scheme from different IED suppliers according to requirements, and better maintainability is realized.

Description

A kind of intelligent assembly
Technical field
The present invention relates to a kind of intelligent assembly, belong to automation of transformation substations field.
Background technology
Intelligent power equipment is the inexorable trend that conventional electric power equipment adapts to the intelligent grid development, possesses essential characteristics such as the digitizing of measurement, Control Networkization, status visualization, function integration, information interactionization.It is the base components that constitutes intelligent grid and intelligent substation; real intelligent power equipment should be realized the logic node set among the IEC61850 on physical equipment; as the transformer logic node; the isolating switch logic node; disconnector logic node etc.; sensor logic node such as temperature; pressure etc. should be distributed on the actual intelligence sensor; intelligence sensor sends sampled data to wall status monitoring IED by the process layer network; and realization observing and controlling; the height of functions such as protection is integrated; but this mode difficulty is very big; still be in conceptual phase, be difficult to extensive practicability at present.Feasible method is that the intelligent assembly that disposes based on the IEC61850 information model carries out intellectualized reconstruction to conventional electric power equipment at present.
Intelligent assembly is intelligent electronic device (intelligent electronic device; IED) organic set; it is the intelligentized core component of power equipment; usually be installed on by the high pressure primary equipment nearby; finish basic functions such as measurement of correlation, control, monitoring, also can be with metering, protection, record ripple, electric energy quality monitoring etc. as expanded function.Inner each IED of intelligent assembly is optimized under incorporate theory; except that directly relevant function with protection; by measuring; control; monitoring; functional modules such as metering and protection are carried out design and the configuration of IED; one of intelligentized main target of power equipment is the digital collection and networked the sharing of realizing status information; therefore; how integrated between each big function; how to carry out the condition diagnosing that information interaction could satisfy assembly between each functional module; senior application demand such as Based Intelligent Control; intelligent assembly need with which equipment interactive information, the communication interface of information interaction and agreement etc. all need to consider.
The present intelligent assembly design proposals that adopt a multi-functional IED more, finish the data acquisition and the transmission of power equipment many reference amounts by an IED, when there was fault in this IED, the function of whole intelligent assembly can't realize that just the reliability and the maintenanceability of intelligent assembly are lower.
Summary of the invention
Technical matters to be solved by this invention is to overcome the defective of prior art and a kind of intelligent assembly is provided, inner each IED of intelligent assembly is optimized under incorporate theory, separate between each IED, all IED are the access procedure layer network, information requirement each other realizes by the process layer network, need to carry out the IED while access station control layer network of information interaction in the intelligent assembly with station level, bear the download equipment finger print information, the feedback device state, accept functions such as steering order, the realization of all intelligent assembly functions of fault effects of a sub-IED be can avoid, thereby the reliability and the maintenanceability of intelligent assembly promoted.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of intelligent assembly, external host computer and power equipment comprise main IED and the plurality of sub IED that is connected this main IED, wherein:
Each sub-IED comprises sensor, signal pre-processing circuit, single-chip microcomputer, power module and storer, described sensor, signal pre-processing circuit, single-chip microcomputer and storer are connected successively, and described power module connects described signal pre-processing circuit and single-chip microcomputer respectively;
Sensor connects power equipment, the parameters of gathering this power equipment, each simulating signal filtering of output expression parameters;
Signal pre-processing circuit receives each simulating signal filtering, and each simulating signal filtering that will receive is converted into each digital signal, gives described single-chip microcomputer with each digital signal transfers;
Single-chip microcomputer connects described main IED, and each digital signal that receives is screened, and each digital signal after the screening is passed to described main IED and storer;
Each digital signal that storer will receive is stored;
Main IED connects described host computer, with each digital signal that is received from each sub-IED processing of classifying, sorted each digital signal is passed to described host computer.
Above-mentioned intelligent assembly, wherein, described power equipment is a transformer, and described each sub-IED comprises sub-IED, the sub-IED that finishes micro-water content monitoring function in the oil, the sub-IED that finishes the partial discharge monitoring function, the sub-IED that finishes the winding temperature monitoring function, the sub-IED that finishes the load ratio bridging switch status monitoring function, the sub-IED that finishes the bushing shell for transformer monitoring function that finish oil dissolved gas content monitoring function, finish the sub-IED of iron core grounding current monitoring function and finish the sub-IED of transformer vibration monitoring function.
Above-mentioned intelligent assembly, wherein, described power equipment is the GIS/ isolating switch, and described each sub-IED comprises the sub-IED, the sub-IED that finishes SF6 gaseous state monitoring function that finish the partial discharge monitoring function, finish the sub-IED of circuit breaker operation mechanism status monitoring function and finish the sub-IED of contact temperature monitoring function.
Above-mentioned intelligent assembly, wherein, described power equipment is a lightning arrester, described each sub-IED comprises sub-IED that finishes the current in resistance property monitoring function and the sub-IED that finishes the total current monitoring function.
Above-mentioned intelligent assembly, wherein, described power equipment is a capacitive apparatus, described each sub-IED comprises the sub-IED that finishes equivalent capacitance amount monitoring function, finish the sub-IED of dielectric loss monitoring function and finish the sub-IED of end screen current monitoring function.
All IED in the intelligent assembly of the present invention are the access procedure layer network, information requirement each other realizes by the process layer network, main IED is access station control layer network simultaneously, carry out information interaction with station level, bear download equipment finger print information, feedback device state, accept functions such as steering order.
Separate between each sub-IED of intelligent assembly of the present invention, adopt the design proposal of a this design proposal rather than a multi-functional IED, its advantage is: can avoid the realization of all intelligent assembly functions of fault effects of a sub-IED, thereby effectively promote the reliability of intelligent assembly; Be convenient to the user and select suitable Integrated Solution according to qualifications from different IED supplier according to requirement of engineering; Has better maintenanceability.
Description of drawings
Fig. 1 is the general structure synoptic diagram of intelligent assembly of the present invention;
Fig. 2 is the structured flowchart of the intelligent assembly that provides of the embodiment of the invention one;
Fig. 3 is the structured flowchart of the intelligent assembly that provides of the embodiment of the invention two;
Fig. 4 is the structured flowchart of the intelligent assembly that provides of the embodiment of the invention three;
Fig. 5 is the structured flowchart of the intelligent assembly that provides of the embodiment of the invention four.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
See also Fig. 1, intelligent assembly 1 of the present invention, external host computer 3 and power equipment 2 comprise main IED11 and the plurality of sub IED12 that is connected this main IED, wherein,
Each sub-IED comprises sensor 121, signal pre-processing circuit 122, single-chip microcomputer 123, power module 124 and storer 125, described sensor 121, signal pre-processing circuit 122, single-chip microcomputer 123 and storer 125 are connected successively, and described power module 124 connects described signal pre-processing circuit 122 and single-chip microcomputer 123 respectively;
Described sensor 121 connects power equipment 2, the parameters of gathering this power equipment 2, each simulating signal filtering of output expression parameters;
Described signal pre-processing circuit 122 receives each simulating signal filtering, and each simulating signal filtering that will receive is converted into each digital signal, with each digital signal transfers to described single-chip microcomputer 123;
Described single-chip microcomputer 123 connects described main IED11, and each digital signal that receives is screened, and each digital signal after the screening is passed to described main IED11 and storer 125;
Each digital signal that described storer 125 will receive is stored;
Described main IED11 connects described host computer, with each digital signal that is received from each sub-IED12 processing of classifying, sorted each digital signal is passed to described host computer 3.
See also Fig. 2 again, embodiments of the invention one, intelligent assembly 201, external transformer 202 and host computer 203, each sub-IED gathers a parametric data and passes to described main IED2011, and the sub-IED of each of intelligent assembly 201 comprises:
Oil dissolved gas content is monitored sub-IED2012, monitors the variation of the content of gas in the oil, can reflect operation conditions, operation life and the insulation ag(e)ing situation of transformer effectively;
Micro-water content is monitored sub-IED2013 in the oil, and the variation of micro-water content in the monitoring oil can reflect effectively that aging, apparatus insulated the wearing out of insulating oil itself reaches the corrosion situation of metal parts;
The sub-IED2014 of partial discharge monitoring, the variation of monitoring local discharge signal can reflect the degradation of transformer insulated performance;
Winding temperature is monitored sub-IED2015, the monitoring winding temperature can reflect the transformer operation conditions timely and effectively, protection transformer safe and reliable operation, and can effectively prolong serviceable life of transformer, directly measure the method that hot spot temperature of winding is generally used optical fiber temperature-measurement;
The sub-IED2016 of load ratio bridging switch status monitoring mainly monitors drive current, moment of torsion and the abrasion condition of the motor of on-load tap changer, so that early find fault, fix a breakdown, avoids the generation of major accident;
Bushing shell for transformer is monitored sub-IED2017, mainly be dielectric loss, electric capacity, the end screen electric current of measuring sleeve pipe, bushing shell for transformer is that the inner high and low pressure of transformer is caused the outside vitals that is connected with electrical network of fuel tank, its state of insulation has determined the transformer operation level, by can grasp the operation level of transformer to the monitoring of bushing shell for transformer;
Iron core grounding current is monitored sub-IED2018, and the monitoring iron core grounding current can in time reflect faults such as multipoint earthing of iron core, avoids the harm that operation causes electric power netting safe running when long after the fault;
The sub-IED2019 of transformer vibration monitoring, the abnormal vibration of on-line monitoring power transformer, can realize the detection and the location of transformer defective, the transformer body vibration is mainly caused by basket vibration under short-circuit state, can utilize the transformer body vibration signal when being short-circuited accident, monitor winding whether distortion or loosening has taken place.
See also Fig. 3 again, embodiments of the invention two, intelligent assembly 301, external GIS/ isolating switch 302 and host computer 303, each sub-IED gathers a parametric data and passes to described main IED3011, the sub-IED of each of intelligent assembly 301 comprises that the sub-IED3012 of partial discharge monitoring, SF6 gaseous state monitor sub-IED3013, the sub-IED3014 of circuit breaker operation mechanism status monitoring and the sub-IED3015 of contact temperature monitoring, wherein:
The variation of the sub-IED3012 monitoring of partial discharge monitoring local discharge signal, shelf depreciation is the one of the main reasons that causes the apparatus insulated deterioration of GIS, it simultaneously also is the key character of describing the GIS insulation ag(e)ing, by the monitoring and the analysis of the discharge signal of playing a game, just can judge whether GIS inside exists certain insulation hidden danger;
The SF6 gaseous state is monitored sub-IED3013, mainly monitors gas micro-water content, temperature, density, pressure etc., can assess the sealing state of SF6 air chamber and the SF6 gas-insulated risk of making moist;
The sub-IED3014 of circuit breaker operation mechanism status monitoring, main monitoring breaker divide-shut brake current waveform, stroke curve and vibroacoustics fingerprint etc. can reflect the duty of breaker operation mechanism.
See also Fig. 4 again, embodiments of the invention three, intelligent assembly 401, external arrester 402 and host computer 403, each sub-IED gathers a parametric data and passes to described main IED4011, and each sub-IED comprises that current in resistance property is monitored sub-IED4012 and total current is monitored sub-IED4013.
Metal zinc oxide lightning arrester (MOA) is widely used in GIS equipment with its premium properties.When situation such as valve block is aging, inner inlet makes moist, the built-in electrical insulation parts are impaired, surperficial pollution severity occurring as MOA, its insulation characterisitic is destroyed, showing as resistive Leakage Current increases, total leakage current, loss also increase thereupon, finally cause the generation of thermal breakdown even explosion accident, have a strong impact on the safe operation of electrical network.For guaranteeing the safe and reliable operation of MOA, should take effective ways that the operation conditions of MOA is detected and analyzes, find in time and remove a hidden danger that the accident that prevents takes place.Intelligent assembly 401 of the present invention is mainly measured current in resistance property and the total currents of MOA, can grasp state of insulation and the variation tendency thereof of MOA by the horizontal and vertical comparison of monitoring variable.
See also Fig. 5 again, embodiments of the invention four, intelligent assembly 501, external capacitive apparatus 502 and host computer 503, each sub-IED gathers a parametric data and passes to described main IED5011, and each sub-IED comprises that the equivalent capacitance amount is monitored sub-IED5012, dielectric loss is monitored sub-IED5013 and the sub-IED5014 of end screen current monitoring.
High voltage capacitive apparatus comprises sleeve pipe, coupling condenser, mutual inductor etc., in long-time running because of filth, chemical corrosion, lighting, heating, the influence of factors vary such as mechanical force, insulating property descend gradually, and may cause major defect, as in time not finding and taking measures, latent defect develops gradually, and may cause insulation breakdown, cause device damage, cause large-area power-cuts, bring massive losses, the intelligent assembly 501 main equivalent capacitance amounts of measuring capacitive apparatus of the present invention, dielectric loss and end screen electric current etc., the combining environmental humiture can be assessed the state of insulation and the variation tendency thereof of capacitive apparatus.
In sum, separate between each sub-IED of intelligent assembly of the present invention, can avoid the realization of all intelligent assembly functions of fault effects of a sub-IED, thereby effectively promote the reliability of intelligent assembly; Be convenient to the user and select suitable Integrated Solution according to qualifications from different IED supplier according to requirement of engineering; Has better maintenanceability.
Above embodiment is only for the usefulness that the present invention is described, but not limitation of the present invention, person skilled in the relevant technique, under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.

Claims (5)

1. intelligent assembly, external host computer and power equipment is characterized in that, this intelligent assembly comprises main IED and the plurality of sub IED that is connected this main IED, wherein:
Each sub-IED comprises sensor, signal pre-processing circuit, single-chip microcomputer, power module and storer, described sensor, signal pre-processing circuit, single-chip microcomputer and storer are connected successively, and described power module connects described signal pre-processing circuit and single-chip microcomputer respectively;
Described sensor connects power equipment, the parameters of gathering this power equipment, each simulating signal filtering of output expression parameters;
Described signal pre-processing circuit receives each simulating signal filtering, and each simulating signal filtering that will receive is converted into each digital signal, gives described single-chip microcomputer with each digital signal transfers;
Described single-chip microcomputer connects described main IED, and each digital signal that receives is screened, and each digital signal after the screening is passed to described main IED and storer;
Each digital signal that described storer will receive is stored;
Described main IED connects described host computer, with each digital signal that is received from each sub-IED processing of classifying, sorted each digital signal is passed to described host computer.
2. intelligent assembly according to claim 1, it is characterized in that, described power equipment is a transformer, and described each sub-IED comprises that oil dissolved gas content monitors in sub-IED, the oil micro-water content and monitor sub-IED, the sub-IED of partial discharge monitoring, winding temperature and monitor that sub-IED, the sub-IED of load ratio bridging switch status monitoring, bushing shell for transformer are monitored sub-IED, iron core grounding current is monitored sub-IED and the sub-IED of transformer vibration monitoring.
3. intelligent assembly according to claim 1, it is characterized in that, described power equipment is the GIS/ isolating switch, and described each sub-IED comprises that the sub-IED of partial discharge monitoring, SF6 gaseous state monitor sub-IED, the sub-IED of circuit breaker operation mechanism status monitoring and the sub-IED of contact temperature monitoring.
4. intelligent assembly according to claim 1 is characterised in that, described power equipment is a lightning arrester, and described each sub-IED comprises that current in resistance property is monitored sub-IED and total current is monitored sub-IED.
5. intelligent assembly according to claim 1 is characterized in that, described power equipment is a capacitive apparatus, and described each sub-IED comprises that the equivalent capacitance amount is monitored sub-IED, dielectric loss is monitored sub-IED and the sub-IED of end screen current monitoring.
CN2013101000663A 2013-03-26 2013-03-26 Intelligent assembly Pending CN103217192A (en)

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Application Number Priority Date Filing Date Title
CN2013101000663A CN103217192A (en) 2013-03-26 2013-03-26 Intelligent assembly

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103475092A (en) * 2013-08-29 2013-12-25 国家电网公司 Intelligent transformation method for traditional substation circuit breaker
CN103579948A (en) * 2013-11-28 2014-02-12 国家电网公司 Integrated intelligent assembly of power transformer
CN110376463A (en) * 2019-07-18 2019-10-25 大唐东北电力试验研究院有限公司 Arrester on-Line Monitor Device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201247294Y (en) * 2008-08-15 2009-05-27 上海致达智利达系统控制有限责任公司 Synthesis on-line automatization monitoring system for transformer substation
CN202141751U (en) * 2011-07-08 2012-02-08 南京新宁光电工程有限公司 Novel lightning arrester online monitoring system
CN102636710A (en) * 2012-03-31 2012-08-15 上海市电力公司 Online monitoring system of high-voltage equipment
CN102790429A (en) * 2012-08-07 2012-11-21 国电南瑞科技股份有限公司 On-line intelligent monitoring module for intelligent transformer substation GISs (gas insulated switchgear)
CN202582602U (en) * 2012-04-26 2012-12-05 江苏骏龙电力科技股份有限公司 Transformer running state comprehensive monitoring system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201247294Y (en) * 2008-08-15 2009-05-27 上海致达智利达系统控制有限责任公司 Synthesis on-line automatization monitoring system for transformer substation
CN202141751U (en) * 2011-07-08 2012-02-08 南京新宁光电工程有限公司 Novel lightning arrester online monitoring system
CN102636710A (en) * 2012-03-31 2012-08-15 上海市电力公司 Online monitoring system of high-voltage equipment
CN202582602U (en) * 2012-04-26 2012-12-05 江苏骏龙电力科技股份有限公司 Transformer running state comprehensive monitoring system
CN102790429A (en) * 2012-08-07 2012-11-21 国电南瑞科技股份有限公司 On-line intelligent monitoring module for intelligent transformer substation GISs (gas insulated switchgear)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103475092A (en) * 2013-08-29 2013-12-25 国家电网公司 Intelligent transformation method for traditional substation circuit breaker
CN103579948A (en) * 2013-11-28 2014-02-12 国家电网公司 Integrated intelligent assembly of power transformer
CN103579948B (en) * 2013-11-28 2016-02-24 国家电网公司 Integrated power transformer intelligent assembly
CN110376463A (en) * 2019-07-18 2019-10-25 大唐东北电力试验研究院有限公司 Arrester on-Line Monitor Device

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Application publication date: 20130724